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 5534 cfs

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

Sun, Jul 18, 2021 3556.33 8,047,159 5534 10218 96.0 81.0 81.0

Sun, Sep 20, 2020 3597.27 11,491,480 5534 8867 93.0 67.0 72.0

Thu, Dec 31, 1992 3615.91 13,334,385 5534 10900 45.0 27.0 --

Sat, Dec 02, 1989 3661.23 18,654,742 5534 6660 53.0 23.0 --

Thu, Dec 29, 1966 3521.93 5,922,431 5534 12600 34.0 18.0 --

Mon, Dec 21, 1964 3490.94 4,174,877 5534 5910 44.0 25.0 --

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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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Copyright Summit Technologies, Inc.
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