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 7626.00 cfs

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

Wed, Sep 13, 2023 3573.64 8,795,357 7626 6621 84.2 59.2 79.0

Sat, Dec 01, 2018 3586.41 10,498,645 7626 11606 50.0 35.0 55.0

Wed, Mar 25, 2009 3610.65 12,795,839 7626 10337 61.0 39.0 51.0

Thu, Mar 09, 2000 3677.45 20,889,046 7626 11487 56.0 36.0 --

Mon, May 18, 1981 3677.60 21,034,834 7626 11200 75.0 52.0 --

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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