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 Lake Powell elevation was 3651.54 feet above Sea Level

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

Mon, Oct 17, 2011 3651.54 17,408,172 11181.00 15610.00 78.1 60.1 68.0

Sat, Mar 24, 1990 3651.54 17,408,504 5633.00 6810.00 72.0 48.0 --

Fri, Mar 23, 1990 3651.54 17,408,504 5443.00 16500.00 76.0 47.0 --

Mon, Feb 14, 1977 3651.54 17,628,756 7471.00 11400.00 63.0 35.0 --

Sat, Feb 12, 1977 3651.54 17,628,756 7237.00 8930.00 60.0 34.0 --

Sun, Apr 21, 1974 3651.54 17,711,350 10175.00 6850.00 73.0 48.0 --

Wed, Apr 10, 1974 3651.54 17,711,350 10181.00 6400.00 56.0 32.0 --

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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