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 8156.00 cfs

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

Tue, Mar 23, 2010 3619.79 13,741,002 8156 10228 61.0 44.1 51.0

Sun, Mar 12, 1989 3674.50 20,468,000 8156 3150 78.0 24.0 --

Wed, Sep 23, 1981 3672.29 20,279,102 8156 11700 88.0 65.0 --

Fri, Apr 24, 1981 3677.27 20,987,176 8156 10500 84.0 53.0 --

Sun, Oct 29, 1978 3637.40 15,874,922 8156 5720 68.0 46.0 --

Sat, Oct 23, 1976 3662.13 19,036,156 8156 14000 66.0 45.0 --

Sun, Sep 28, 1975 3668.37 19,914,808 8156 8920 90.0 60.0 --

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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