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 7921.00 cfs

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

Sun, Oct 04, 2009 3635.08 15,429,577 7921 10066 75.9 55.0 70.0

Tue, Mar 22, 1994 3654.81 17,821,886 7921 11000 67.0 40.0 --

Sun, Feb 13, 1994 3656.08 17,984,416 7921 9840 47.0 21.0 --

Mon, Apr 30, 1990 3649.51 17,155,242 7921 10800 60.0 43.0 --

Tue, Oct 14, 1975 3666.70 19,684,814 7921 12800 65.0 44.0 --

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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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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