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 5314 cfs

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

Sun, Dec 27, 2020 3582.99 10,197,852 5314 10170 39.0 28.0 47.0

Sun, Dec 14, 2003 3599.02 11,656,831 5314 8482 50.0 30.0 51.0

Thu, Oct 24, 2002 3625.02 14,302,640 5314 8235 63.0 45.0 65.0

Mon, Feb 11, 2002 3651.31 17,379,340 5314 11456 46.9 24.1 --

Thu, Dec 07, 1989 3661.02 18,627,132 5314 10800 60.0 24.0 --

Wed, Jul 13, 1977 3651.88 17,671,754 5314 13600 96.0 72.0 --

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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