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 7990 cfs

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

Sat, Jul 04, 1981 3680.46 21,450,662 10294 7990 99.0 71.0 --

Sun, Aug 08, 1971 3619.93 14,067,397 8123 7990 95.0 71.0 --

Sun, Jul 12, 1970 3601.40 12,173,105 23776 7990 96.0 65.0 --

Thu, Jan 22, 1970 3569.39 9,286,082 9589 7990 55.0 33.0 --

Sun, Jan 11, 1970 3570.23 9,355,439 6915 7990 51.0 26.0 --

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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