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 11746 cfs

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

Thu, Jul 30, 2009 3641.20 16,145,192 11746 13365 93.0 66.9 80.0

Thu, Oct 31, 1996 3678.00 20,968,236 11746 11000 60.0 38.0 62.0

Sat, Mar 29, 1980 3675.51 20,765,950 11746 6130 64.0 32.0 --

Wed, Mar 05, 1975 3645.64 16,944,838 11746 8670 60.0 39.0 --

Sun, Mar 10, 1974 3649.14 17,407,686 11746 7170 53.0 39.0 --

Fri, Oct 30, 1970 3599.72 12,008,511 11746 7660 65.0 35.0 --

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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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Copyright Summit Technologies, Inc.
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