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 29900 cfs

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

Tue, Jul 16, 1985 3698.38 24,062,782 21408 29900 100.0 76.0 --

Fri, Jul 12, 1985 3698.95 24,153,992 23175 29900 100.0 75.0 --

Mon, Jul 01, 1985 3700.12 24,341,458 36334 29900 97.0 66.0 --

Sun, Jun 30, 1985 3700.11 24,339,838 37104 29900 95.0 61.0 --

Sat, Jun 29, 1985 3700.10 24,338,216 39706 29900 94.0 73.0 --

Wed, Apr 11, 1973 3594.50 11,452,536 10714 29900 72.0 47.0 --

Fri, Mar 30, 1973 3598.37 11,820,938 12855 29900 57.0 37.0 --

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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