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 7295 cfs

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

Tue, Jul 20, 2021 3555.86 8,012,254 7295 12371 94.0 74.0 82.0

Wed, Mar 27, 2019 3569.76 9,087,696 7295 13265 73.0 47.0 49.0

Wed, Jan 26, 2005 3562.50 8,514,521 7295 14141 46.0 39.9 49.0

Tue, Oct 17, 1989 3664.14 19,040,816 7295 15900 72.0 47.0 --

Sat, Dec 19, 1981 3668.55 19,759,084 7295 21500 49.0 31.0 --

Sun, Jan 28, 1968 3525.23 6,110,519 7295 4030 50.0 34.0 --

Wed, Jan 25, 1967 3517.62 5,648,717 7295 10700 48.0 35.0 --

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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