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 10780 cfs

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

Wed, Jul 19, 2006 3608.71 12,600,886 10780 13689 99.0 75.0 81.0

Tue, Mar 17, 1998 3673.75 20,362,164 10780 20100 67.0 45.0 --

Mon, Mar 02, 1998 3675.41 20,597,292 10780 19800 51.0 30.0 --

Wed, Mar 22, 1989 3674.65 20,489,286 10780 8760 68.0 28.0 --

Tue, Mar 06, 1979 3628.68 14,848,492 10780 4610 55.0 32.0 --

Wed, Feb 11, 1976 3666.42 19,616,508 10780 15000 59.0 37.0 --

Thu, Feb 26, 1970 3569.95 9,332,167 10780 6910 60.0 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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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