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 8878 cfs

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

Tue, Mar 15, 1994 3655.04 17,851,242 8878 10300 69.0 38.0 --

Fri, Apr 03, 1992 3619.40 13,699,690 8878 9990 70.0 45.0 --

Fri, Apr 12, 1991 3627.12 14,533,213 8878 12300 59.0 34.0 --

Mon, Mar 13, 1989 3674.58 20,479,372 8878 5390 78.0 24.0 --

Wed, Mar 26, 1975 3646.12 17,004,104 8878 9220 44.0 32.0 --

Mon, Mar 23, 1970 3571.46 9,457,880 8878 9260 67.0 37.0 --

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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