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 outflow from Lake Powell was 12845.00 cfs

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

Sat, Aug 21, 2021 3550.80 7,642,598 10269 12845 91.0 68.0 82.0

Sat, Dec 03, 2005 3602.01 11,942,869 8139 12845 52.0 33.1 54.0

Fri, Jan 09, 2004 3595.64 11,338,797 4186 12845 42.1 26.1 47.0

Mon, Jun 17, 2002 3642.99 16,358,916 6372 12845 100.9 70.0 71.0

Thu, Jun 06, 2002 3644.13 16,496,092 10917 12845 98.1 63.0 --

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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