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 8170 cfs

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

Tue, Oct 05, 1982 3687.77 22,507,954 18187 8170 74.0 49.0 --

Tue, Feb 17, 1981 3678.18 21,118,730 6971 8170 62.0 36.0 --

Mon, Dec 29, 1980 3681.27 21,600,900 9663 8170 55.0 31.0 --

Sat, Feb 20, 1971 3602.53 12,265,140 10663 8170 50.0 32.0 --

Thu, Feb 27, 1969 3542.74 7,267,902 12824 8170 52.0 32.0 --

Thu, Feb 13, 1969 3541.12 7,154,646 11355 8170 52.0 36.0 --

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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