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 8986 cfs

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

Thu, May 15, 2003 3605.23 12,256,156 8986 11275 80.1 55.0 58.0

Wed, Nov 27, 1991 3626.65 14,481,489 8986 10100 49.0 27.0 --

Sun, Jan 31, 1988 3683.04 21,703,966 8986 8860 57.0 32.0 --

Thu, Aug 28, 1975 3672.25 20,456,726 8986 16900 n/a n/a --

Sun, Jan 26, 1975 3645.79 16,963,330 8986 2970 61.0 32.0 --

Wed, Jan 14, 1970 3569.85 9,323,951 8986 12800 48.0 27.0 --

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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