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 outflow from Lake Powell was 7140 cfs

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

Fri, Mar 29, 1991 3627.72 14,599,197 6204 7140 55.0 40.0 --

Mon, Jun 20, 1977 3655.05 18,077,520 6456 7140 95.0 62.0 --

Sat, Jan 01, 1977 3655.31 18,111,018 9261 7140 45.0 31.0 --

Wed, Jan 27, 1971 3600.13 12,029,395 12094 7140 58.0 29.0 --

Tue, Dec 26, 1967 3526.75 6,217,340 9554 7140 28.0 12.0 --

Sat, Oct 14, 1967 3528.26 6,314,094 7924 7140 84.0 55.0 --

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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