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 8030 cfs

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

Tue, Aug 24, 2021 3550.45 7,617,444 8030 13730 95.0 70.0 82.0

Tue, Jan 28, 2020 3605.76 12,308,248 8030 12723 50.0 30.0 46.0

Wed, Jan 10, 2018 3621.76 13,950,609 8030 14292 52.0 41.0 50.0

Wed, Aug 26, 1992 3626.55 14,470,505 8030 12800 86.0 58.0 --

Tue, Aug 13, 1991 3634.15 15,323,239 8030 14900 94.0 71.0 --

Wed, Nov 25, 1964 3491.47 4,202,439 8030 6290 54.0 34.0 --

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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