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 7871 cfs

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

Wed, Feb 03, 2021 3575.98 9,599,067 7871 12305 68.0 37.0 46.0

Sat, Aug 23, 2014 3606.43 12,374,310 7871 12398 87.1 66.9 77.0

Wed, Jul 31, 1996 3686.49 22,219,242 7871 13900 102.0 74.0 --

Sun, Nov 08, 1981 3671.83 20,214,410 7871 6930 61.0 43.0 --

Mon, Aug 31, 1970 3597.90 11,831,805 7871 14600 94.0 77.0 --

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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