Lake Powell Water Database

powell
powell

The earliest data is from Monday, March 11th, 1963
The most recent data is from Tuesday, September 30th, 2025

Days where Lake Powell elevation was 3677.38 feet above Sea Level

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

Sun, Mar 12, 2000 3677.38 20,878,974 7876.00 10622.00 60.0 35.0 48.0

Sat, Mar 11, 2000 3677.38 20,878,974 7835.00 10533.00 57.0 32.0 --

Thu, May 25, 1989 3677.38 20,878,704 15587.00 9990.00 95.0 56.0 --

Thu, May 07, 1981 3677.38 21,003,038 16891.00 8990.00 84.0 49.0 --

Tue, Apr 21, 1981 3677.38 21,003,038 7625.00 9610.00 78.0 46.0 --

Mon, Apr 20, 1981 3677.38 21,003,038 7150.00 7390.00 73.0 46.0 --

Sat, Apr 18, 1981 3677.38 21,003,038 6772.00 8990.00 81.0 53.0 --

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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