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 9951 cfs

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

Fri, Nov 04, 2005 3602.76 12,015,352 9951 8766 66.9 42.1 64.0

Thu, Sep 19, 1996 3680.31 21,303,252 9951 14700 78.0 48.0 --

Thu, Sep 21, 1995 3688.52 22,526,442 9951 18900 94.0 63.0 --

Sat, Sep 25, 1971 3614.81 13,520,064 9951 13100 87.0 55.0 --

Mon, Aug 02, 1971 3620.59 14,139,221 9951 14000 103.0 74.0 --

Wed, Sep 10, 1969 3574.36 9,717,433 9951 17200 95.0 69.0 --

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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