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 outflow from Lake Powell was 8620 cfs

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

Thu, Nov 17, 2005 3602.66 12,005,661 9180 8620 55.0 32.0 61.0

Sun, Jan 20, 1991 3631.65 15,038,614 5713 8620 49.0 28.0 --

Tue, Oct 03, 1978 3639.93 16,174,352 6319 8620 81.0 59.0 --

Wed, Jan 29, 1975 3645.75 16,958,398 9145 8620 41.0 24.0 --

Sun, Aug 06, 1967 3531.73 6,540,882 7408 8620 89.0 78.0 --

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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