Lake Powell Water Database

powell
powell

The earliest data is from Monday, March 11th, 1963
The most recent data is from Wednesday, October 1st, 2025

Days where inflow into Lake Powell was 7859 cfs

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

Sun, Nov 20, 2016 3606.22 12,353,578 7859 8387 54.0 44.0 60.0

Sun, Apr 12, 2009 3609.84 12,714,201 7859 9715 71.1 46.9 52.0

Fri, Dec 30, 2005 3598.30 11,588,624 7859 13902 46.0 28.0 50.0

Wed, Sep 17, 2003 3604.53 12,187,589 7859 8230 88.0 64.0 75.0

Sat, Nov 24, 1979 3674.04 20,587,280 7859 14200 49.0 31.0 --

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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