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 4530 cfs

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

Fri, Mar 18, 1977 3650.73 17,526,368 8159 4530 55.0 38.0 --

Sun, Dec 26, 1976 3656.15 18,247,674 8149 4530 43.0 21.0 --

Sat, Feb 01, 1975 3645.85 16,970,728 9950 4530 47.0 29.0 --

Sat, Apr 06, 1974 3651.46 17,701,174 11437 4530 75.0 23.0 --

Thu, Mar 14, 1974 3649.57 17,461,930 13546 4530 69.0 44.0 --

Sat, Mar 02, 1974 3648.60 17,339,832 9794 4530 68.0 40.0 --

Sat, Oct 13, 1973 3645.87 17,026,388 10763 4530 73.0 46.0 --

Tue, Jan 04, 1966 3535.29 6,789,282 10498 4530 39.0 21.0 --

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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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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