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 outflow from Lake Powell was 21700 cfs

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

Sat, Dec 27, 1986 3684.92 21,984,068 17169 21700 45.0 25.0 --

Mon, Apr 08, 1985 3676.86 20,803,996 24197 21700 80.0 49.0 --

Thu, Jan 12, 1984 3683.45 21,796,634 14452 21700 48.0 26.0 --

Fri, Jun 20, 1980 3699.15 24,347,686 54929 21700 n/a n/a --

Fri, Jun 06, 1980 3693.85 23,508,532 50705 21700 n/a n/a --

Fri, Aug 26, 1977 3643.36 16,612,905 6031 21700 97.0 67.0 --

Wed, Jul 10, 1974 3666.11 19,633,528 12624 21700 96.0 51.0 --

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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