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 8494.00 cfs

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

Mon, Dec 27, 2010 3627.00 14,519,591 8494 13825 45.0 30.0 51.0

Sat, Jan 26, 2008 3591.03 10,914,008 8494 12194 44.1 27.0 46.0

Tue, Sep 28, 2004 3570.70 9,163,771 8494 8196 81.0 57.0 71.0

Wed, Jun 12, 2002 3643.56 16,427,414 8494 12811 93.0 61.0 69.0

Wed, Oct 24, 1990 3637.29 15,685,645 8494 8030 69.0 45.0 --

Mon, Oct 04, 1976 3663.76 19,255,060 8494 9500 68.0 46.0 --

Fri, Oct 14, 1966 3527.87 6,299,230 8494 8740 61.0 41.0 --

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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