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 6981 cfs

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

Sat, Oct 28, 2017 3627.24 14,546,050 6981 9955 71.0 48.0 64.0

Sun, Nov 16, 2003 3601.34 11,878,375 6981 7481 46.9 39.9 61.0

Sun, Oct 21, 1979 3676.97 21,005,974 6981 4310 66.0 42.0 --

Tue, Feb 14, 1978 3624.19 14,373,624 6981 12900 51.0 36.0 --

Sat, Apr 29, 1967 3507.39 5,048,014 6981 10200 69.0 44.0 --

Thu, Sep 17, 1964 3490.25 4,139,000 6981 997 88.0 59.0 --

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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