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 9118 cfs

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

Thu, Nov 16, 2006 3607.46 12,476,325 9118 10273 53.1 32.0 59.0

Mon, Nov 11, 1991 3626.91 14,510,090 9118 9680 62.0 43.0 --

Tue, Dec 29, 1987 3685.48 22,067,998 9118 10500 42.0 24.0 --

Fri, Oct 08, 1976 3663.38 19,204,012 9118 13700 70.0 47.0 --

Fri, Apr 09, 1976 3664.72 19,385,202 9118 6790 79.0 44.0 --

Tue, Aug 04, 1970 3600.63 12,097,533 9118 11800 100.0 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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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