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 11195 cfs

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

Sat, Apr 18, 2020 3599.93 11,743,399 11195 10811 67.0 50.0 55.0

Thu, Oct 22, 1981 3672.27 20,276,270 11195 17600 69.0 48.0 --

Mon, Jul 12, 1976 3671.75 20,355,750 11195 14100 101.0 76.0 --

Sat, Oct 26, 1974 3650.62 17,594,632 11195 6910 67.0 52.0 --

Thu, Jul 25, 1974 3663.61 19,293,770 11195 20700 100.0 75.0 --

Thu, Jul 11, 1974 3665.95 19,611,584 11195 20100 91.0 48.0 --

Tue, Oct 23, 1973 3645.87 17,026,388 11195 10100 83.0 49.0 --

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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