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 7087 cfs

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

Sun, Oct 24, 2021 3544.41 7,191,830 7087 7499 69.0 52.0 63.0

Thu, Mar 12, 2009 3611.47 12,878,837 7087 10378 62.1 37.9 51.0

Wed, Nov 26, 2008 3622.10 13,987,023 7087 10225 52.0 43.0 59.0

Sat, Jun 15, 2002 3643.22 16,386,525 7087 12058 99.0 68.0 70.0

Wed, Oct 23, 1991 3627.35 14,558,511 7087 8910 70.0 55.0 --

Mon, Nov 28, 1988 3682.06 21,559,828 7087 11800 62.0 25.0 --

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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