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 7208 cfs

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

Tue, Dec 19, 2023 3569.90 8,510,499 7208 10189 53.2 38.3 58.0

Fri, Sep 22, 2023 3573.58 8,790,737 7208 6623 77.8 47.3 76.0

Sun, Feb 02, 2020 3605.35 12,267,939 7208 10265 58.0 30.0 47.0

Thu, Nov 24, 1994 3652.69 17,552,876 7208 7750 50.0 26.0 --

Wed, Nov 23, 1994 3652.71 17,555,402 7208 8870 50.0 25.0 --

Fri, Nov 18, 1994 3652.90 17,579,388 7208 8680 49.0 36.0 --

Mon, Oct 15, 1990 3637.32 15,689,128 7208 7550 80.0 52.0 --

Fri, Oct 23, 1964 3491.72 4,215,439 7208 4120 70.0 48.0 --

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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