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 6938 cfs

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

Thu, Feb 04, 2010 3621.82 13,957,030 6938 11731 43.0 26.1 49.0

Thu, Jul 29, 2004 3580.19 9,955,815 6938 14855 97.0 66.0 79.0

Sat, Mar 17, 2001 3663.32 18,931,254 6938 10151 57.0 35.1 --

Wed, Aug 07, 1996 3685.52 22,073,562 6938 16000 97.0 71.0 --

Thu, Feb 10, 1994 3656.23 18,003,668 6938 13500 56.0 29.0 --

Sat, Sep 16, 1978 3642.07 16,430,478 6938 11700 81.0 59.0 --

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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