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 inflow into Lake Powell was 6520 cfs

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

Sun, Sep 13, 2020 3598.03 11,563,106 6520 8836 90.0 59.0 75.0

Sat, Dec 30, 2017 3622.88 14,070,825 6520 11912 52.0 32.0 51.0

Sun, Dec 21, 2008 3619.40 13,699,772 6520 12259 39.9 30.9 53.0

Thu, Nov 13, 2003 3601.48 11,891,823 6520 8074 55.0 43.0 60.0

Thu, Mar 21, 2002 3648.26 17,000,102 6520 10072 68.0 39.9 48.0

Tue, Nov 27, 2001 3660.39 18,543,688 6520 10994 39.9 28.9 58.0

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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