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 6580 cfs

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

Tue, Feb 09, 2016 3595.77 11,350,936 6580 12030 52.0 30.0 48.0

Sat, Sep 11, 2004 3571.29 9,211,749 6580 7887 90.0 64.9 74.0

Tue, Dec 06, 1994 3651.92 17,455,886 6580 12300 56.0 38.0 --

Sun, Aug 18, 1974 3659.26 18,712,504 6580 21000 97.0 71.0 --

Thu, Aug 10, 1972 3613.35 13,345,196 6580 19800 100.0 72.0 --

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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