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 Lake Powell had 21,121,640 acre feet of water storage

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

Tue, Mar 17, 1981 3678.20 21,121,640 6336 7600 n/a n/a --

Mon, Mar 09, 1981 3678.20 21,121,640 6351 8510 n/a n/a --

Fri, Mar 06, 1981 3678.20 21,121,640 6743 7780 n/a n/a --

Mon, Feb 23, 1981 3678.20 21,121,640 7439 7290 n/a n/a --

Thu, Feb 19, 1981 3678.20 21,121,640 8737 6570 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