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 8754 cfs

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

Sun, Dec 24, 2006 3604.13 12,148,507 8754 12038 43.0 25.0 50.0

Fri, Nov 05, 2004 3570.51 9,148,364 8754 8085 59.0 37.0 60.0

Tue, Sep 14, 1993 3663.55 18,961,940 8754 11700 80.0 56.0 --

Sun, Nov 01, 1981 3671.95 20,231,120 8754 5860 61.0 38.0 --

Fri, Sep 18, 1981 3672.58 20,320,108 8754 15900 88.0 65.0 --

Sat, Jan 10, 1981 3680.80 21,500,446 8754 14100 54.0 31.0 --

Thu, Nov 23, 1978 3636.81 15,805,777 8754 6910 55.0 38.0 --

Fri, Jan 03, 1969 3539.44 7,038,168 8754 7520 47.0 26.0 --

Tue, Jan 16, 1968 3526.19 6,171,065 8754 13200 34.0 15.0 --

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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