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 11436.00 cfs

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

Sun, Oct 16, 2011 3651.60 17,415,702 11436 15627 82.9 57.0 68.0

Wed, Mar 24, 1999 3677.80 20,939,424 11436 13265 70.0 36.0 56.0

Tue, Nov 20, 1973 3646.24 17,072,308 11436 7290 50.0 34.0 --

Tue, Nov 24, 1970 3600.52 12,086,751 11436 11400 60.0 37.0 --

Wed, Sep 30, 1970 3598.87 11,925,954 11436 13600 82.0 59.0 --

Sat, Aug 01, 1970 3600.71 12,105,392 11436 13000 103.0 71.0 --

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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