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 7440.00 cfs

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

Mon, Nov 12, 1990 3637.24 15,679,839 6955 7440 62.0 38.0 --

Sun, Dec 10, 1989 3660.81 18,599,522 5774 7440 50.0 21.0 --

Sat, Dec 27, 1980 3681.25 21,597,952 9870 7440 51.0 32.0 --

Fri, Nov 28, 1975 3667.09 19,738,428 11801 7440 47.0 35.0 --

Sun, Feb 23, 1975 3645.50 16,927,608 10388 7440 48.0 25.0 --

Mon, Jan 06, 1969 3539.58 7,047,860 8384 7440 49.0 25.0 --

Sun, Nov 14, 1965 3531.25 6,530,143 11856 7440 n/a n/a --

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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