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 11493 cfs

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

Thu, Apr 01, 1999 3677.61 20,912,082 11493 12338 52.0 34.0 --

Sat, Feb 21, 1998 3676.52 20,755,672 11493 18700 n/a n/a --

Tue, Dec 30, 1975 3667.99 19,862,100 11493 6020 45.0 25.0 --

Thu, Dec 27, 1973 3648.48 17,351,770 11493 5320 46.0 25.0 --

Wed, Feb 05, 1969 3540.58 7,117,165 11493 6530 48.0 26.0 --

Wed, Dec 22, 1965 3533.98 6,711,756 11493 8720 41.0 25.0 --

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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