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 7145 cfs

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

Thu, Sep 07, 2023 3573.92 8,816,940 7145 11181 90.0 55.0 80.0

Wed, Apr 29, 2020 3599.39 11,691,979 7145 10906 89.0 60.0 61.0

Thu, Dec 17, 2015 3602.92 12,030,852 7145 14650 41.0 23.0 53.0

Sun, Apr 11, 2010 3618.76 13,632,288 7145 9470 79.0 48.9 53.0

Tue, Apr 06, 2010 3619.03 13,660,732 7145 10396 54.0 34.0 52.0

Tue, Apr 29, 2003 3605.14 12,247,317 7145 10506 73.0 55.9 54.0

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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