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 3687.46 feet above Sea Level

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

Sun, Nov 29, 1987 3687.46 22,365,454 10918.00 9370.00 49.0 28.0 --

Sun, Oct 25, 1987 3687.46 22,365,454 9218.00 5080.00 75.0 45.0 --

Wed, Oct 14, 1987 3687.46 22,365,454 8249.00 13000.00 73.0 49.0 --

Tue, Oct 13, 1987 3687.46 22,365,454 8049.00 11000.00 72.0 63.0 --

Thu, Dec 04, 1986 3687.46 22,365,454 18868.00 27000.00 51.0 31.0 --

Fri, Dec 16, 1983 3687.46 22,429,212 14021.00 23800.00 52.0 39.0 --

Tue, Aug 03, 1982 3687.46 22,461,092 15555.00 12100.00 85.0 64.0 --

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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