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 21600.00 cfs

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

Tue, Aug 18, 1998 3692.86 23,193,676 9758 21600 94.0 65.0 --

Mon, Sep 23, 1985 3686.60 22,236,014 16322 21600 81.0 51.0 --

Thu, Apr 14, 1983 3684.95 22,051,962 13064 21600 55.0 37.0 --

Thu, Jun 05, 1980 3693.55 23,461,654 51242 21600 n/a n/a --

Thu, Jul 24, 1975 3674.89 20,831,830 29888 21600 101.0 75.0 --

Fri, Aug 30, 1974 3656.08 18,295,074 5778 21600 98.0 70.0 --

Thu, Jan 10, 1974 3647.32 17,179,938 13268 21600 43.0 21.0 --

Thu, Jul 27, 1972 3616.26 13,651,952 6354 21600 98.0 71.0 --

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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