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 9790.00 cfs

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

Tue, Nov 30, 1999 3684.82 21,968,876 9790 18017 60.0 31.0 --

Sat, Nov 27, 1999 3685.21 22,027,144 9790 17838 55.0 26.0 --

Wed, Jan 12, 1983 3684.00 21,910,238 9790 14600 49.0 26.0 --

Tue, Oct 28, 1975 3666.45 19,650,456 9790 7420 68.0 42.0 --

Fri, Dec 13, 1968 3540.76 7,141,363 9790 10600 42.0 23.0 --

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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