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 8563 cfs

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

Sat, Dec 25, 2010 3627.22 14,543,844 8563 13228 48.9 33.1 52.0

Thu, Oct 25, 2007 3600.84 11,830,394 8563 9815 71.1 44.1 63.0

Sat, Jan 08, 1983 3683.98 21,907,254 8563 10600 50.0 33.0 --

Tue, Jan 11, 1977 3654.22 17,970,578 8563 21000 37.0 17.0 --

Thu, Dec 23, 1976 3656.09 18,239,880 8563 11800 43.0 21.0 --

Tue, Mar 14, 1967 3513.46 5,400,006 8563 13500 67.0 43.0 --

Sun, Mar 14, 1965 3492.05 4,226,353 8563 7250 56.0 33.0 --

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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