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 9172 cfs

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

Wed, Apr 10, 2024 3558.38 7,672,457 9172 10455 64.9 47.4 --

Thu, Sep 20, 2007 3601.60 11,903,378 9172 10452 84.9 63.0 75.0

Tue, Sep 29, 1998 3687.87 22,427,754 9172 18200 85.0 54.0 --

Sat, Aug 15, 1987 3694.24 23,408,678 9172 21500 92.0 65.0 --

Sat, Aug 07, 1976 3670.17 20,134,410 9172 9170 100.0 76.0 --

Mon, Apr 14, 1975 3646.27 17,022,718 9172 8990 69.0 25.0 --

Thu, Aug 20, 1970 3599.31 11,968,692 9172 14200 86.0 66.0 --

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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