Lake Powell Water Database

powell
powell

The earliest data is from Monday, March 11th, 1963
The most recent data is from Wednesday, October 1st, 2025

Days where Lake Powell elevation was 3686.50 feet above Sea Level

DATE MEASURED ELEVATION CONTENT INFLOW OUTFLOW HIGH TEMP LOW TEMP WATER TEMP

Fri, Nov 21, 1997 3686.50 22,220,750 14097.00 19700.00 64.0 32.0 56.0

Fri, Oct 06, 1995 3686.50 22,220,750 11876.00 16400.00 68.0 40.0 --

Sun, Dec 13, 1987 3686.50 22,221,000 10611.00 15200.00 42.0 25.0 --

Fri, Sep 03, 1982 3686.50 22,316,428 11979.00 11800.00 93.0 67.0 --

Wed, Aug 25, 1982 3686.50 22,316,428 14127.00 15700.00 79.0 67.0 --

Fri, Aug 20, 1982 3686.50 22,316,428 12029.00 16500.00 96.0 74.0 --

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Measurements are taken at 11:59 pm of the date listed
Temperature data is from Wahweap, AZ
Water temperature data is from wayneswords.com*
CHANGE represents water elevation change from previous day

Units used in each measurement:
Elevation - Feet above sea level
Change - Feet difference over previous measurement
Content - Acre Feet
Inflow - Acre Feet per day
Outflow - Acre Feet per day
All Temps - Degrees Farhenheit
The Water Year runs from October 1 to September 30 of the next year
Acre Feet = * Flow CFS
TP = Total Precipitation

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Water data courtesy of US Bureau of Reclamation
*Air temp data is sourced from (Prev 24 Hr Extremes): Weather
Weather forecast for
All data is provisional and subject to review and modification
USBR Source Data