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 8248 cfs

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

Wed, Nov 11, 2009 3632.69 15,156,288 8248 11803 62.1 48.0 62.0

Fri, Feb 20, 1981 3678.17 21,117,274 8248 9360 59.0 39.0 --

Sat, Feb 07, 1981 3678.77 21,204,516 8248 11700 61.0 28.0 --

Thu, Feb 01, 1979 3628.63 14,842,862 8248 20100 34.0 16.0 --

Mon, Mar 13, 1978 3622.41 14,179,151 8248 8540 58.0 38.0 --

Mon, Feb 07, 1977 3651.75 17,655,322 8248 8590 55.0 28.0 --

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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