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 6018 cfs

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

Wed, Dec 26, 2018 3582.52 10,156,959 6018 12756 50.0 31.0 51.0

Mon, Feb 26, 2018 3616.29 13,373,866 6018 13210 48.0 26.0 47.0

Mon, Aug 20, 2007 3605.10 12,243,413 6018 13408 95.0 72.0 80.0

Sun, Oct 13, 1991 3627.96 14,625,596 6018 7670 88.0 59.0 --

Thu, Dec 01, 1977 3634.42 15,552,104 6018 14000 56.0 40.0 --

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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