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 outflow from Lake Powell was 8059 cfs

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

Fri, Mar 03, 2023 3520.89 5,311,332 6633 8059 48.9 23.9 41.0

Tue, Oct 16, 2012 3620.49 13,815,213 3453 8059 77.0 52.0 68.0

Fri, Oct 08, 2010 3634.36 15,346,883 8904 8059 68.0 46.9 71.0

Wed, Oct 06, 2010 3634.12 15,319,388 7284 8059 59.0 50.0 71.0

Wed, Sep 29, 2010 3633.68 15,269,071 8133 8059 88.0 61.0 73.0

Sat, May 24, 2003 3606.62 12,393,098 23911 8059 95.0 64.0 65.0

Sun, Aug 20, 2000 3680.79 21,373,360 6111 8059 96.0 68.0 --

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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