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 inflow into Lake Powell was 7131 cfs

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

Fri, Apr 13, 2018 3610.95 12,826,163 7131 12225 59.0 39.0 54.0

Sat, Oct 16, 2004 3570.73 9,166,209 7131 7444 73.9 52.0 68.0

Wed, Jan 15, 1992 3623.24 14,109,919 7131 13500 39.0 21.0 --

Tue, Nov 22, 1988 3682.48 21,621,558 7131 13200 52.0 28.0 --

Tue, Nov 17, 1981 3671.25 20,133,560 7131 10100 63.0 41.0 --

Wed, Nov 11, 1964 3491.74 4,216,480 7131 6190 53.0 35.0 --

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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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Copyright Summit Technologies, Inc.
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