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 8634 cfs

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

Wed, Aug 20, 2008 3631.04 14,969,637 8634 14710 93.9 69.1 --

Mon, Oct 21, 1996 3678.37 21,021,648 8634 10600 58.0 38.0 --

Wed, May 16, 1990 3648.92 17,082,070 8634 12300 85.0 53.0 --

Fri, Aug 26, 1988 3688.35 22,500,564 8634 14100 n/a n/a --

Wed, Mar 15, 1978 3622.57 14,196,661 8634 5310 57.0 35.0 --

Fri, Oct 11, 1968 3545.24 7,457,381 8634 10700 74.0 49.0 --

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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