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 inflow into Lake Powell was 11842 cfs

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

Sun, Jul 02, 2000 3683.37 21,753,202 11842 7974 n/a n/a --

Wed, Dec 20, 1995 3681.72 21,509,684 11842 15900 42.0 29.0 --

Tue, Aug 10, 1982 3687.17 22,417,254 11842 15600 98.0 71.0 --

Fri, Aug 10, 1979 3683.11 21,903,866 11842 19600 99.0 71.0 --

Mon, Dec 08, 1975 3667.46 19,789,258 11842 4640 51.0 32.0 --

Sat, Dec 29, 1973 3648.61 17,368,128 11842 4480 58.0 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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Copyright Summit Technologies, Inc.
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