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 7556 cfs

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

Wed, Dec 27, 2017 3623.16 14,100,998 7556 12368 54.0 32.0 52.0

Fri, Dec 04, 2009 3630.49 14,907,786 7556 14369 37.0 16.0 56.0

Thu, Feb 20, 1992 3620.35 13,800,285 7556 11700 55.0 36.0 --

Wed, Feb 05, 1992 3620.97 13,866,302 7556 11700 52.0 30.0 --

Thu, Mar 14, 1991 3628.76 14,714,741 7556 11800 60.0 37.0 --

Tue, Jul 19, 1988 3692.55 23,145,258 7556 11200 104.0 70.0 --

Wed, Feb 07, 1968 3525.01 6,096,723 7556 10100 51.0 31.0 --

Tue, Feb 06, 1968 3525.08 6,101,118 7556 9180 52.0 31.0 --

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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