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 8606.00 cfs

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

Thu, Jul 01, 2021 3559.95 8,319,256 8606 12558 95.0 70.0 77.0

Mon, Dec 15, 2014 3599.88 11,738,632 8606 14430 44.1 30.9 56.0

Sat, Dec 14, 1991 3625.55 14,360,955 8606 10800 50.0 28.0 --

Sun, Apr 23, 1972 3611.07 13,108,359 8606 10900 79.0 49.0 --

Mon, Jan 31, 1966 3535.21 6,783,933 8606 11600 48.0 34.0 --

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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