Water level reference

Lake Powell
water level

Daily mean · latest available

3516.6 ft

NGVD 1929

Provider date:

At page generation on , this measurement was within seven days of its provider date.

This is a saved snapshot. Compare the provider date above with today: if it is more than seven days old, treat this measurement as stale. Reloading the page does not check the provider.

Measurement basis
Daily mean
Quality
Provisional
Date convention
Etc/GMT+7; provider date preserved
Source station
USGS-09379900
Source
USGS series

Source captured . Provisional observations and historical values may be corrected. Refreshing this page does not fetch the provider.

Daily values and exact-date changes

A sampling-complete daily mean is unavailable. The provider reports daily means, but underlying sample completeness has not been verified.

Changes in provider-reported daily means; sampling completeness unverified. These differences do not establish complete daily means.

1-day change

+0.2 ft

2026-09-16 to 2026-09-17

Includes provisional observations.

7-day change

-0.5 ft

2026-09-10 to 2026-09-17

Includes provisional observations.

Only exact calendar dates in the same compatible daily series are compared. Missing dates are not substituted.

Daily mean history

2024-01-01 to 2026-09-18. 991 eligible days of 992; 1 missing or excluded days. Vertical reference: NGVD 1929.

Last 90 captured days

Lake Powell daily water-level history2026-06-21 to 2026-09-18; 1 separate valid-data segments. Missing dates, invalid values and incompatible reference segments break the line. The table below contains original observations.3,515.63,521.73,527.82026-06-212026-09-18

Display uses first, minimum, maximum and last values within buckets; gaps stay separate. Statistics and the table use original daily values. Chart units: ft.

Read all 991 original daily records
Lake Powell: provider daily dates, ft, NGVD 1929. Absent dates have no row. Excluded values remain labelled.
DateLevel (ft)Quality / eligibility
2024-01-013568.5Approved
2024-01-023568.3Approved
2024-01-033568.1Approved
2024-01-043567.9Approved
2024-01-053567.8Approved
2024-01-063567.6Approved
2024-01-073567.4Approved
2024-01-083567.2Approved
2024-01-093567.2Approved
2024-01-103567.1Approved
2024-01-113566.8Approved
2024-01-123566.8Approved
2024-01-133566.7Approved
2024-01-143566.4Approved
2024-01-153566.4Approved
2024-01-163566.3Approved
2024-01-173566.1Approved
2024-01-183566.0Approved
2024-01-193565.9Approved
2024-01-203565.7Approved
2024-01-213565.6Approved
2024-01-223565.5Approved
2024-01-233565.3Approved
2024-01-243565.2Approved
2024-01-253565.1Approved
2024-01-263565.0Approved
2024-01-273564.9Approved
2024-01-283564.8Approved
2024-01-293564.7Approved
2024-01-303564.6Approved
2024-01-313564.5Approved
2024-02-013564.4Approved
2024-02-023564.2Approved
2024-02-033564.1Approved
2024-02-043564.1Approved
2024-02-053564.1Approved
2024-02-063563.9Approved
2024-02-073563.7Approved
2024-02-083563.7Approved
2024-02-093563.6Approved
2024-02-103563.5Approved
2024-02-113563.5Approved
2024-02-123563.5Approved
2024-02-133563.4Approved
2024-02-143563.3Approved
2024-02-153563.2Approved
2024-02-163563.0Approved
2024-02-173563.0Approved
2024-02-183562.9Approved
2024-02-193562.8Approved
2024-02-203562.7Approved
2024-02-213562.5Approved
2024-02-223562.4Approved
2024-02-233562.3Approved
2024-02-243562.2Approved
2024-02-253562.1Approved
2024-02-263561.9Approved
2024-02-273561.8Approved
2024-02-283561.8Approved
2024-02-293561.7Approved
2024-03-013561.4Approved
2024-03-023561.2Approved
2024-03-033561.1Approved
2024-03-043561.2Approved
2024-03-053561.0Approved
2024-03-063561.0Approved
2024-03-073560.8Approved
2024-03-083560.6Approved
2024-03-093560.6Approved
2024-03-103560.6Approved
2024-03-113560.4Approved
2024-03-123560.3Approved
2024-03-133560.0Approved
2024-03-143560.0Approved
2024-03-153559.9Approved
2024-03-163560.0Approved
2024-03-173560.0Approved
2024-03-183559.8Approved
2024-03-193559.8Approved
2024-03-203559.6Approved
2024-03-213559.5Approved
2024-03-223559.4Approved
2024-03-233559.2Approved
2024-03-243559.1Approved
2024-03-253559.0Approved
2024-03-263558.9Approved
2024-03-273558.9Approved
2024-03-283558.7Approved
2024-03-293558.6Approved
2024-03-303558.5Approved
2024-03-313558.4Approved
2024-04-013558.4Approved
2024-04-023558.4Approved
2024-04-033558.4Approved
2024-04-043558.2Approved
2024-04-053558.0Approved
2024-04-063558.0Approved
2024-04-073558.0Approved
2024-04-083557.9Approved
2024-04-093557.9Approved
2024-04-103557.9Approved
2024-04-113557.9Approved
2024-04-123557.8Approved
2024-04-133557.7Approved
2024-04-143557.6Approved
2024-04-153557.6Approved
2024-04-163557.7Approved
2024-04-173557.7Approved
2024-04-183557.7Approved
2024-04-193557.8Approved
2024-04-203557.8Approved
2024-04-213557.9Approved
2024-04-223558.1Approved
2024-04-233558.1Approved
2024-04-243558.2Approved
2024-04-253558.4Approved
2024-04-263558.5Approved
2024-04-273558.6Approved
2024-04-283558.9Approved
2024-04-293559.1Approved
2024-04-303559.3Approved
2024-05-013559.5Approved
2024-05-023559.8Approved
2024-05-033560.0Approved
2024-05-043560.2Approved
2024-05-053560.2Approved
2024-05-063560.5Approved
2024-05-073560.6Approved
2024-05-083560.7Approved
2024-05-093560.9Approved
2024-05-103561.1Approved
2024-05-113561.2Approved
2024-05-123561.4Approved
2024-05-133561.6Approved
2024-05-143561.7Approved
2024-05-153561.7Approved
2024-05-163561.8Approved
2024-05-173561.9Approved
2024-05-183562.0Approved
2024-05-193562.2Approved
2024-05-203562.3Approved
2024-05-213562.6Approved
2024-05-223563.1Approved
2024-05-233563.4Approved
2024-05-243564.1Approved
2024-05-253564.6Approved
2024-05-263565.3Approved
2024-05-273565.8Approved
2024-05-283566.4Approved
2024-05-293566.9Approved
2024-05-303567.4Approved
2024-05-313568.0Approved
2024-06-013568.5Approved
2024-06-023569.2Approved
2024-06-033569.8Approved
2024-06-043570.5Approved
2024-06-053571.1Approved
2024-06-063571.7Approved
2024-06-073572.3Approved
2024-06-083573.0Approved
2024-06-093573.8Approved
2024-06-103574.6Approved
2024-06-113575.4Approved
2024-06-123576.2Approved
2024-06-133577.0Approved
2024-06-143577.8Approved
2024-06-153578.5Approved
2024-06-163579.1Approved
2024-06-173579.7Approved
2024-06-183580.3Approved
2024-06-193580.8Approved
2024-06-203581.3Approved
2024-06-213581.7Approved
2024-06-223582.2Approved
2024-06-233582.7Approved
2024-06-243583.2Approved
2024-06-253583.6Approved
2024-06-263583.9Approved
2024-06-273584.2Approved
2024-06-283584.5Approved
2024-06-293584.8Approved
2024-06-303585.0Approved
2024-07-013585.3Approved
2024-07-023585.6Approved
2024-07-033585.9Approved
2024-07-043586.1Approved
2024-07-053586.4Approved
2024-07-063586.5Approved
2024-07-073586.7Approved
2024-07-083586.8Approved
2024-07-093586.8Approved
2024-07-103586.8Approved
2024-07-113586.8Approved
2024-07-123586.7Approved
2024-07-133586.6Approved
2024-07-143586.5Approved
2024-07-153586.4Approved
2024-07-163586.4Approved
2024-07-173586.3Approved
2024-07-183586.1Approved
2024-07-193586.0Approved
2024-07-203585.9Approved
2024-07-213585.8Approved
2024-07-223585.7Approved
2024-07-233585.5Approved
2024-07-243585.4Approved
2024-07-253585.2Approved
2024-07-263585.1Approved
2024-07-273584.9Approved
2024-07-283584.8Approved
2024-07-293584.7Approved
2024-07-303584.5Approved
2024-07-313584.3Approved
2024-08-013584.2Approved
2024-08-023583.9Approved
2024-08-033583.8Approved
2024-08-043583.6Approved
2024-08-053583.5Approved
2024-08-063583.2Approved
2024-08-073583.0Approved
2024-08-083582.8Approved
2024-08-093582.6Approved
2024-08-103582.4Approved
2024-08-113582.3Approved
2024-08-123582.2Approved
2024-08-133582.1Approved
2024-08-143582.1Approved
2024-08-153582.1Approved
2024-08-163581.9Approved
2024-08-173581.8Approved
2024-08-183581.8Approved
2024-08-193581.7Approved
2024-08-203581.5Approved
2024-08-213581.4Approved
2024-08-223581.2Approved
2024-08-233581.1Approved
2024-08-243581.0Approved
2024-08-253581.0Approved
2024-08-263581.1Approved
2024-08-273581.1Approved
2024-08-283581.0Approved
2024-08-293580.9Approved
2024-08-303580.8Approved
2024-08-313580.7Approved
2024-09-013580.6Approved
2024-09-023580.5Approved
2024-09-033580.5Approved
2024-09-043580.4Approved
2024-09-053580.3Approved
2024-09-063580.2Approved
2024-09-073580.1Approved
2024-09-083580.0Approved
2024-09-093579.9Approved
2024-09-103579.8Approved
2024-09-113579.6Approved
2024-09-123579.4Approved
2024-09-133579.3Approved
2024-09-143579.2Approved
2024-09-153579.1Approved
2024-09-163578.8Approved
2024-09-173578.7Approved
2024-09-183578.7Approved
2024-09-193578.6Approved
2024-09-203578.5Approved
2024-09-213578.4Approved
2024-09-223578.4Approved
2024-09-233578.3Approved
2024-09-243578.2Approved
2024-09-253578.1Approved
2024-09-263578.0Approved
2024-09-273578.0Approved
2024-09-283577.9Approved
2024-09-293577.8Approved
2024-09-303577.7Approved
2024-10-013577.7Approved
2024-10-023577.6Approved
2024-10-033577.6Approved
2024-10-043577.5Approved
2024-10-053577.4Approved
2024-10-063577.4Approved
2024-10-073577.4Approved
2024-10-083577.3Approved
2024-10-093577.2Approved
2024-10-103577.1Approved
2024-10-113577.1Approved
2024-10-123577.0Approved
2024-10-133576.9Approved
2024-10-143576.8Approved
2024-10-153576.8Approved
2024-10-163576.7Approved
2024-10-173576.5Approved
2024-10-183576.4Approved
2024-10-193576.5Approved
2024-10-203576.5Approved
2024-10-213576.5Approved
2024-10-223576.7Approved
2024-10-233576.7Approved
2024-10-243576.7Approved
2024-10-253576.8Approved
2024-10-263576.7Approved
2024-10-273576.7Approved
2024-10-283576.6Approved
2024-10-293576.4Approved
2024-10-303576.5Approved
2024-10-313576.5Approved
2024-11-013576.5Approved
2024-11-023576.5Approved
2024-11-033576.4Approved
2024-11-043576.3Approved
2024-11-053576.4Approved
2024-11-063576.2Approved
2024-11-073576.2Approved
2024-11-083576.2Approved
2024-11-093576.1Approved
2024-11-103576.1Approved
2024-11-113576.1Approved
2024-11-123575.8Approved
2024-11-133575.9Approved
2024-11-143575.8Approved
2024-11-153575.7Approved
2024-11-163575.6Approved
2024-11-173575.6Approved
2024-11-183575.5Approved
2024-11-193575.4Approved
2024-11-203575.4Approved
2024-11-213575.3Approved
2024-11-223575.2Approved
2024-11-233575.1Approved
2024-11-243575.0Approved
2024-11-253575.0Approved
2024-11-263574.9Approved
2024-11-273574.9Approved
2024-11-283574.9Approved
2024-11-293574.8Approved
2024-11-303574.8Approved
2024-12-013574.8Approved
2024-12-023574.7Approved
2024-12-033574.6Approved
2024-12-043574.4Approved
2024-12-053574.3Approved
2024-12-063574.2Approved
2024-12-073574.1Approved
2024-12-083574.0Approved
2024-12-093573.8Approved
2024-12-103573.8Approved
2024-12-113573.7Approved
2024-12-123573.6Approved
2024-12-133573.4Approved
2024-12-143573.3Approved
2024-12-153573.2Approved
2024-12-163573.1Approved
2024-12-173573.0Approved
2024-12-183572.9Approved
2024-12-193572.8Approved
2024-12-203572.6Approved
2024-12-213572.5Approved
2024-12-223572.5Approved
2024-12-233572.4Approved
2024-12-243572.3Approved
2024-12-253572.1Approved
2024-12-263572.0Approved
2024-12-273571.9Approved
2024-12-283571.8Approved
2024-12-293571.7Approved
2024-12-303571.6Approved
2024-12-313571.6Approved
2025-01-013571.5Approved
2025-01-023571.3Approved
2025-01-033571.2Approved
2025-01-043570.9Approved
2025-01-053570.9Approved
2025-01-063570.7Approved
2025-01-073570.5Approved
2025-01-083570.4Approved
2025-01-093570.1Approved
2025-01-103570.0Approved
2025-01-113569.8Approved
2025-01-123569.7Approved
2025-01-133569.6Approved
2025-01-143569.4Approved
2025-01-153569.2Approved
2025-01-163569.1Approved
2025-01-173568.9Approved
2025-01-183568.6Approved
2025-01-193568.5Approved
2025-01-203568.3Approved
2025-01-213568.1Approved
2025-01-223567.9Approved
2025-01-233567.7Approved
2025-01-243567.4Approved
2025-01-253567.3Approved
2025-01-263567.1Approved
2025-01-273566.9Approved
2025-01-283566.7Approved
2025-01-293566.5Approved
2025-01-303566.4Approved
2025-01-313566.3Approved
2025-02-013566.1Approved
2025-02-023566.0Approved
2025-02-033565.9Approved
2025-02-043565.7Approved
2025-02-053565.5Approved
2025-02-063565.5Approved
2025-02-073565.3Approved
2025-02-083565.2Approved
2025-02-093565.1Approved
2025-02-103565.0Approved
2025-02-113564.8Approved
2025-02-123564.6Approved
2025-02-133564.5Approved
2025-02-143564.4Approved
2025-02-153564.2Approved
2025-02-163564.2Approved
2025-02-173564.0Approved
2025-02-183563.8Approved
2025-02-193563.8Approved
2025-02-203563.5Approved
2025-02-213563.4Approved
2025-02-223563.3Approved
2025-02-233563.2Approved
2025-02-243563.0Approved
2025-02-253562.9Approved
2025-02-263562.7Approved
2025-02-273562.5Approved
2025-02-283562.4Approved
2025-03-013562.2Approved
2025-03-023562.0Approved
2025-03-033561.8Approved
2025-03-043561.8Approved
2025-03-053561.7Approved
2025-03-063561.5Approved
2025-03-073561.4Approved
2025-03-083561.3Approved
2025-03-093561.2Approved
2025-03-103561.1Approved
2025-03-113561.0Approved
2025-03-123560.8Approved
2025-03-133560.6Approved
2025-03-143560.4Approved
2025-03-153560.4Approved
2025-03-163560.4Approved
2025-03-173560.2Approved
2025-03-183559.9Approved
2025-03-193560.0Approved
2025-03-203559.9Approved
2025-03-213559.9Approved
2025-03-223559.7Approved
2025-03-233559.7Approved
2025-03-243559.6Approved
2025-03-253559.5Approved
2025-03-263559.4Approved
2025-03-273559.3Approved
2025-03-283559.2Approved
2025-03-293559.0Approved
2025-03-303559.0Approved
2025-03-313558.8Approved
2025-04-013558.7Approved
2025-04-023558.7Approved
2025-04-033558.7Approved
2025-04-043558.6Approved
2025-04-053558.5Approved
2025-04-063558.5Approved
2025-04-073558.5Approved
2025-04-083558.5Approved
2025-04-093558.4Approved
2025-04-103558.4Approved
2025-04-113558.3Approved
2025-04-123558.2Approved
2025-04-133558.1Approved
2025-04-143558.1Approved
2025-04-153558.0Approved
2025-04-163557.8Approved
2025-04-173557.6Approved
2025-04-183557.7Approved
2025-04-193557.7Approved
2025-04-203557.8Approved
2025-04-213557.7Approved
2025-04-223557.8Approved
2025-04-233557.7Approved
2025-04-243557.7Approved
2025-04-253557.6Approved
2025-04-263557.5Approved
2025-04-273557.5Approved
2025-04-283557.5Approved
2025-04-293557.5Approved
2025-04-303557.4Approved
2025-05-013557.4Approved
2025-05-023557.4Approved
2025-05-033557.4Approved
2025-05-043557.3Approved
2025-05-053557.3Approved
2025-05-063557.4Approved
2025-05-073557.4Approved
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2025-05-093557.5Approved
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2025-05-133557.4Approved
2025-05-143557.4Approved
2025-05-153557.5Approved
2025-05-163557.7Approved
2025-05-173557.6Approved
2025-05-183557.7Approved
2025-05-193557.8Approved
2025-05-203558.0Approved
2025-05-213558.2Approved
2025-05-223558.3Approved
2025-05-233558.3Approved
2025-05-243558.4Approved
2025-05-253558.4Approved
2025-05-263558.4Approved
2025-05-273558.4Approved
2025-05-283558.4Approved
2025-05-293558.5Approved
2025-05-303558.5Approved
2025-05-313558.5Approved
2025-06-013558.6Approved
2025-06-023558.6Approved
2025-06-033558.8Approved
2025-06-043559.0Approved
2025-06-053559.3Approved
2025-06-063559.6Approved
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2025-06-093560.4Approved
2025-06-103560.6Approved
2025-06-113560.8Approved
2025-06-123560.9Approved
2025-06-133561.0Approved
2025-06-143561.1Approved
2025-06-153561.2Approved
2025-06-163561.3Approved
2025-06-173561.3Approved
2025-06-183561.4Approved
2025-06-193561.4Approved
2025-06-203561.4Approved
2025-06-213561.3Approved
2025-06-223561.3Approved
2025-06-233561.3Approved
2025-06-243561.3Approved
2025-06-253561.4Approved
2025-06-263561.3Approved
2025-06-273561.2Approved
2025-06-283561.1Approved
2025-06-293561.0Approved
2025-06-303560.9Approved
2025-07-013560.7Approved
2025-07-023560.6Approved
2025-07-033560.4Approved
2025-07-043560.3Approved
2025-07-053560.1Approved
2025-07-063560.0Approved
2025-07-073559.8Approved
2025-07-083559.7Approved
2025-07-093559.5Approved
2025-07-103559.3Approved
2025-07-113559.1Approved
2025-07-123558.9Approved
2025-07-133558.8Approved
2025-07-143558.6Approved
2025-07-153558.4Approved
2025-07-163558.1Approved
2025-07-173557.9Approved
2025-07-183557.7Approved
2025-07-193557.5Approved
2025-07-203557.3Approved
2025-07-213557.1Approved
2025-07-223556.9Approved
2025-07-233556.7Approved
2025-07-243556.5Approved
2025-07-253556.3Approved
2025-07-263556.1Approved
2025-07-273556.0Approved
2025-07-283555.8Approved
2025-07-293555.6Approved
2025-07-303555.4Approved
2025-07-313555.2Approved
2025-08-013554.9Approved
2025-08-023554.7Approved
2025-08-033554.5Approved
2025-08-043554.2Approved
2025-08-053554.0Approved
2025-08-063553.8Approved
2025-08-073553.6Approved
2025-08-083553.3Approved
2025-08-093553.0Approved
2025-08-103552.8Approved
2025-08-113552.6Approved
2025-08-123552.4Approved
2025-08-133552.1Approved
2025-08-143551.8Approved
2025-08-153551.6Approved
2025-08-163551.3Approved
2025-08-173551.1Approved
2025-08-183550.9Approved
2025-08-193550.7Approved
2025-08-203550.4Approved
2025-08-213550.2Approved
2025-08-223549.9Approved
2025-08-233549.6Approved
2025-08-243549.4Approved
2025-08-253549.1Approved
2025-08-263548.9Approved
2025-08-273548.8Approved
2025-08-283548.5Approved
2025-08-293548.3Approved
2025-08-303548.1Approved
2025-08-313548.0Approved
2025-09-013547.8Approved
2025-09-023547.7Approved
2025-09-033547.5Approved
2025-09-043547.4Approved
2025-09-053547.3Approved
2025-09-063547.2Approved
2025-09-073547.0Approved
2025-09-083546.9Approved
2025-09-093546.7Approved
2025-09-103546.5Approved
2025-09-113546.3Approved
2025-09-123546.2Approved
2025-09-133546.1Approved
2025-09-143546.0Approved
2025-09-153546.0Approved
2025-09-163545.9Approved
2025-09-173545.9Approved
2025-09-183545.8Approved
2025-09-193545.6Approved
2025-09-203545.6Approved
2025-09-213545.4Approved
2025-09-223545.3Approved
2025-09-233545.2Approved
2025-09-243545.1Approved
2025-09-253544.9Approved
2025-09-263544.8Approved
2025-09-273544.7Approved
2025-09-283544.6Approved
2025-09-293544.5Approved
2025-09-303544.4Approved
2025-10-013544.4Approved
2025-10-023544.3Approved
2025-10-033544.1Approved
2025-10-043544.0Approved
2025-10-053544.1Approved
2025-10-063544.0Approved
2025-10-073544.0Approved
2025-10-083543.9Approved
2025-10-093543.8Approved
2025-10-103543.8Approved
2025-10-113543.8Approved
2025-10-123544.0Approved
2025-10-133544.2Approved
2025-10-143544.3Approved
2025-10-153544.5Approved
2025-10-163544.8Approved
2025-10-173545.1Approved
2025-10-183545.2Approved
2025-10-193545.3Approved
2025-10-203545.3Approved
2025-10-213545.3Approved
2025-10-223545.3Approved
2025-10-233545.3Approved
2025-10-243545.4Approved
2025-10-253545.3Approved
2025-10-263545.3Approved
2025-10-273545.3Approved
2025-10-283545.2Approved
2025-10-293545.2Approved
2025-10-303545.2Approved
2025-10-313545.1Approved
2025-11-013545.1Approved
2025-11-023545.1Approved
2025-11-033545.1Approved
2025-11-043545.0Approved
2025-11-053545.0Approved
2025-11-063544.9Approved
2025-11-073544.8Approved
2025-11-083544.7Approved
2025-11-093544.6Approved
2025-11-103544.5Approved
2025-11-113544.4Approved
2025-11-123544.3Approved
2025-11-133544.2Approved
2025-11-143544.1Approved
2025-11-153544.1Approved
2025-11-163543.9Approved
2025-11-173543.9Approved
2025-11-183543.9Approved
2025-11-193543.9Approved
2025-11-203543.9Approved
2025-11-213543.8Approved
2025-11-223543.7Approved
2025-11-233543.7Approved
2025-11-243543.6Approved
2025-11-253543.5Approved
2025-11-263543.4Approved
2025-11-273543.3Approved
2025-11-283543.2Approved
2025-11-293543.1Approved
2025-11-303542.9Approved
2025-12-013542.8Approved
2025-12-023542.7Approved
2025-12-033542.6Approved
2025-12-043542.5Approved
2025-12-053542.4Approved
2025-12-063542.3Approved
2025-12-073542.2Approved
2025-12-083542.1Approved
2025-12-093542.0Approved
2025-12-103541.9Approved
2025-12-113541.8Approved
2025-12-123541.7Approved
2025-12-133541.6Approved
2025-12-143541.5Approved
2025-12-153541.4Approved
2025-12-163541.3Approved
2025-12-173541.2Approved
2025-12-183541.1Approved
2025-12-193541.0Approved
2025-12-203540.9Approved
2025-12-213540.8Approved
2025-12-223540.7Approved
2025-12-233540.6Approved
2025-12-243540.5Approved
2025-12-253540.4Approved
2025-12-263540.4Approved
2025-12-273540.3Approved
2025-12-283540.3Approved
2025-12-293540.2Approved
2025-12-303540.0Approved
2025-12-313540.0Approved
2026-01-013539.9Approved
2026-01-023539.6Approved
2026-01-033539.6Approved
2026-01-043539.4Approved
2026-01-053539.2Approved
2026-01-063539.1Approved
2026-01-073538.9Approved
2026-01-083538.6Approved
2026-01-093538.4Approved
2026-01-103538.4Approved
2026-01-113538.2Approved
2026-01-123538.1Approved
2026-01-133537.9Approved
2026-01-143537.7Approved
2026-01-153537.6Approved
2026-01-163537.4Approved
2026-01-173537.2Approved
2026-01-183537.1Approved
2026-01-193536.9Approved
2026-01-203536.7Approved
2026-01-213536.6Approved
2026-01-223536.4Approved
2026-01-233536.2Approved
2026-01-243536.0Approved
2026-01-253535.8Approved
2026-01-263535.7Approved
2026-01-273535.5Approved
2026-01-283535.3Approved
2026-01-293535.1Approved
2026-01-303534.9Approved
2026-01-313534.7Approved
2026-02-013534.5Approved
2026-02-023534.4Approved
2026-02-033534.2Approved
2026-02-043534.0Approved
2026-02-053533.9Approved
2026-02-063533.7Approved
2026-02-073533.6Approved
2026-02-083533.5Approved
2026-02-093533.3Approved
2026-02-103533.2Approved
2026-02-113533.0Approved
2026-02-123532.9Approved
2026-02-133532.8Approved
2026-02-143532.7Approved
2026-02-153532.5Approved
2026-02-163532.3Approved
2026-02-173532.0Approved
2026-02-183531.9Approved
2026-02-193531.9Approved
2026-02-203531.7Approved
2026-02-213531.7Approved
2026-02-223531.6Approved
2026-02-233531.4Approved
2026-02-243531.3Approved
2026-02-253531.1Approved
2026-02-263530.9Approved
2026-02-273530.8Approved
2026-02-283530.6Approved
2026-03-013530.5Approved
2026-03-023530.4Approved
2026-03-033530.3Approved
2026-03-043530.2Approved
2026-03-053529.9Approved
2026-03-063529.9Approved
2026-03-073529.8Approved
2026-03-083529.8Approved
2026-03-093529.7Approved
2026-03-103529.5Approved
2026-03-113529.4Approved
2026-03-123529.4Approved
2026-03-133529.4Approved
2026-03-143529.2Approved
2026-03-153529.0Approved
2026-03-163529.0Approved
2026-03-173529.0Approved
2026-03-183528.9Approved
2026-03-193528.8Approved
2026-03-203528.7Approved
2026-03-213528.6Approved
2026-03-223528.5Approved
2026-03-233528.4Approved
2026-03-243528.3Approved
2026-03-253528.2Approved
2026-03-263528.1Approved
2026-03-273528.0Approved
2026-03-283527.9Approved
2026-03-293527.8Approved
2026-03-303527.7Approved
2026-03-313527.6Approved
2026-04-013527.6Approved
2026-04-023527.6Approved
2026-04-033527.6Approved
2026-04-043527.7Approved
2026-04-053527.7Approved
2026-04-063527.7Approved
2026-04-073527.7Approved
2026-04-083527.7Approved
2026-04-093527.6Approved
2026-04-103527.6Approved
2026-04-113527.5Approved
2026-04-123527.4Approved
2026-04-133527.4Approved
2026-04-143527.3Approved
2026-04-153527.3Approved
2026-04-163527.1Approved
2026-04-173527.0Approved
2026-04-183527.0Approved
2026-04-193527.0Approved
2026-04-203526.9Approved
2026-04-213526.7Approved
2026-04-223526.6Approved
2026-04-233526.5Approved
2026-04-243526.5Approved
2026-04-253526.4Approved
2026-04-263526.2Approved
2026-04-273526.2Approved
2026-04-283526.2Approved
2026-04-293526.0Approved
2026-04-303526.0Approved
2026-05-013525.9Approved
2026-05-023525.9Approved
2026-05-033525.9Approved
2026-05-043525.8Approved
2026-05-053525.7Approved
2026-05-063525.7Approved
2026-05-073525.7Approved
2026-05-083525.7Approved
2026-05-093525.7Approved
2026-05-103525.8Approved
2026-05-113525.9Approved
2026-05-123526.1Approved
2026-05-133526.1Approved
2026-05-143526.4Approved
2026-05-153526.5Approved
2026-05-163526.6Approved
2026-05-173526.7Approved
2026-05-183526.8Approved
2026-05-193527.1Approved
2026-05-203527.2Approved
2026-05-213527.3Approved
2026-05-223527.3Approved
2026-05-233527.4Approved
2026-05-243527.5Approved
2026-05-253527.5Approved
2026-05-263527.6Approved
2026-05-273527.5Approved
2026-05-283527.5Approved
2026-05-293527.5Approved
2026-05-303527.6Approved
2026-05-313527.7Approved
2026-06-013527.7Approved
2026-06-023527.7Approved
2026-06-033527.7Approved
2026-06-043527.7Approved
2026-06-053527.6Approved
2026-06-063527.6Approved
2026-06-073527.5Approved
2026-06-083527.5Approved
2026-06-093527.5Approved
2026-06-103527.5Approved
2026-06-113527.4Approved
2026-06-123527.5Approved
2026-06-133527.4Approved
2026-06-143527.3Approved
2026-06-153527.3Approved
2026-06-163527.3Approved
2026-06-173527.3Provisional
2026-06-183527.2Provisional
2026-06-193527.1Provisional
2026-06-203527.1Provisional
2026-06-213527.0Provisional
2026-06-223526.9Provisional
2026-06-233526.8Provisional
2026-06-243526.6Provisional
2026-06-253526.5Provisional
2026-06-263526.2Provisional
2026-06-273526.0Provisional
2026-06-283525.9Provisional
2026-06-293525.8Provisional
2026-06-303525.7Provisional
2026-07-013525.6Provisional
2026-07-023525.5Provisional
2026-07-033525.3Provisional
2026-07-043525.2Provisional
2026-07-053525.1Provisional
2026-07-063525.0Provisional
2026-07-073524.8Provisional
2026-07-083524.7Provisional
2026-07-093524.5Provisional
2026-07-103524.4Provisional
2026-07-113524.3Provisional
2026-07-123524.1Provisional
2026-07-133524.0Provisional
2026-07-143523.8Provisional
2026-07-153523.7Provisional
2026-07-163523.5Provisional
2026-07-173523.4Provisional
2026-07-183523.3Provisional
2026-07-193523.2Provisional
2026-07-203523.1Provisional
2026-07-213523.0Provisional
2026-07-223523.0Provisional
2026-07-233523.0Provisional
2026-07-243522.9Provisional
2026-07-253522.8Provisional
2026-07-263522.7Provisional
2026-07-273522.6Provisional
2026-07-283522.5Provisional
2026-07-293522.4Provisional
2026-07-303522.3Provisional
2026-07-313522.2Provisional
2026-08-013522.0Provisional
2026-08-023521.9Provisional
2026-08-033521.7Provisional
2026-08-043521.6Provisional
2026-08-053521.4Provisional
2026-08-063521.3Provisional
2026-08-073521.1Provisional
2026-08-083520.9Provisional
2026-08-093520.8Provisional
2026-08-103520.6Provisional
2026-08-113520.4Provisional
2026-08-123520.2Provisional
2026-08-133520.1Provisional
2026-08-143519.9Provisional
2026-08-153519.8Provisional
2026-08-163519.7Provisional
2026-08-173519.6Provisional
2026-08-183519.4Provisional
2026-08-193519.3Provisional
2026-08-203519.1Provisional
2026-08-213519.0Provisional
2026-08-223518.8Provisional
2026-08-233518.6Provisional
2026-08-243518.5Provisional
2026-08-253518.4Provisional
2026-08-263518.3Provisional
2026-08-273518.1Provisional
2026-08-283517.9Provisional
2026-08-293517.8Provisional
2026-08-303517.8Provisional
2026-08-313517.7Provisional
2026-09-013517.7Provisional
2026-09-023517.6Provisional
2026-09-033517.6Provisional
2026-09-043517.5Provisional
2026-09-053517.5Provisional
2026-09-063517.4Provisional
2026-09-073517.4Provisional
2026-09-083517.3Provisional
2026-09-093517.2Provisional
2026-09-103517.1Provisional
2026-09-113516.9Provisional
2026-09-123516.8Provisional
2026-09-133516.8Provisional
2026-09-143516.7Provisional
2026-09-153516.5Provisional
2026-09-163516.4Provisional
2026-09-173516.6Provisional

Download daily observations (CSV)

Comparable prior years

Same provider calendar date as 2026-09-17, within the fixed 2006–2025 reference interval. 2 eligible distinct years: 2024, 2025

Comparable same-date observations; daily mean, ft, NGVD 1929
DateLevelQuality
2024-09-173578.7 ftApproved
2025-09-173545.9 ftApproved

Percentiles disabled in the frozen methodology. A short captured history is not a long-term seasonal norm. Daily mean sampling completeness is unverified.

Extrema within the captured window

Eligible original-resolution daily mean values from 2024-01-01 through 2026-09-18; these are not all-time instantaneous records. All tied dates are listed.

Lowest

3,516.4 ft

2026-09-16

Highest

3,586.8 ft

2024-07-08, 2024-07-09, 2024-07-10, 2024-07-11

Provider-reported daily means: sampling completeness is unverified for 991 eligible days. Missing observations can hide more extreme values.

Includes provisional observations; extrema may change with provider corrections.

Annual captured-window extrema in ft; date windows and missing coverage are explicit.
Year / windowLow / tied datesHigh / tied datesCoverage
20242024-01-01 to 2024-12-313,557.62024-04-14, 2024-04-153,586.82024-07-08, 2024-07-09, 2024-07-10, 2024-07-11366/366 days
20252025-01-01 to 2025-12-313,540.02025-12-30, 2025-12-313,571.52025-01-01365/365 days
20262026-01-01 to 2026-09-18 (incomplete year)3,516.42026-09-163,539.92026-01-01260/261 days

Source and measurement reference

Historical series
0c4379ba151d41e3bbb1a2216979a5c3
Parameter / statistic
62614 / 00003
Water-surface datum segment
NGVD 1929 / usgs-09379900-62614:verified-2024
Native unit
ft. Foot subtype not established; no unit conversion is offered.

Values from USGS. No agency endorsement is implied. A changed datum or incompatible series is excluded from comparisons and breaks the chart line.

Captured history uses the reviewed datum interval. Forward refresh requires unchanged exact series, unit, parameter and explicit datum metadata; it cannot prove absence of undocumented historical changes.

Read the measurement and calculation methodology.