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 7525 cfs

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

Thu, Dec 08, 2005 3601.41 11,885,086 7525 13278 32.0 15.1 52.0

Sat, Feb 06, 1999 3680.20 21,287,194 7525 14264 50.0 33.0 --

Mon, Aug 04, 1980 3695.55 23,775,442 7525 22500 101.0 67.0 --

Wed, Mar 23, 1977 3651.05 17,566,760 7525 1510 69.0 38.0 --

Wed, Aug 11, 1976 3669.85 20,089,800 7525 10800 95.0 66.0 --

Mon, Apr 05, 1976 3664.60 19,368,900 7525 10000 70.0 42.0 --

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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