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 outflow from Lake Powell was 6320 cfs

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

Sat, May 06, 1989 3676.29 20,722,476 11342 6320 90.0 52.0 --

Sun, Jun 12, 1988 3690.63 22,849,002 29013 6320 98.0 57.0 --

Mon, May 07, 1979 3649.37 17,300,888 33242 6320 n/a n/a --

Tue, May 01, 1979 3646.74 16,974,102 37742 6320 n/a n/a --

Sun, Aug 19, 1973 3644.90 16,906,624 13797 6320 97.0 70.0 --

Sun, Aug 18, 1968 3550.23 7,819,693 19246 6320 88.0 62.0 --

Thu, Nov 26, 1964 3491.42 4,199,836 8083 6320 55.0 36.0 --

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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