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 inflow into Lake Powell was 9652 cfs

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

Fri, Nov 13, 2015 3606.17 12,348,646 9652 10716 54.0 33.1 62.0

Fri, Dec 03, 1993 3661.33 18,667,354 9652 13400 53.0 27.0 --

Thu, Feb 18, 1988 3682.16 21,574,508 9652 16200 53.0 25.0 --

Tue, Feb 16, 1988 3682.40 21,609,786 9652 17000 56.0 27.0 --

Tue, Jan 11, 1983 3684.06 21,919,198 9652 9540 49.0 21.0 --

Tue, Jan 14, 1975 3646.03 16,992,920 9652 13400 39.0 18.0 --

Fri, Jan 21, 1966 3536.00 6,836,715 9652 9700 35.0 19.0 --

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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