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 2500 cfs

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

Sat, Sep 19, 1964 3490.24 4,138,480 7187 2500 81.0 61.0 --

Mon, Sep 14, 1964 3490.21 4,136,918 4603 2500 81.0 58.0 --

Tue, Jul 09, 1963 20,400 3569 2500 97.0 79.0 --

Mon, Jun 24, 1963 11881 2500 96.0 65.0 --

Sun, Jun 23, 1963 12229 2500 n/a n/a --

Fri, Jun 21, 1963 12404 2500 100.0 69.0 --

Thu, Jun 20, 1963 12779 2500 101.0 68.0 --

Wed, Jun 19, 1963 12223 2500 97.0 69.0 --

Tue, Jun 18, 1963 11991 2500 95.0 68.0 --

Wed, Jun 05, 1963 16456 2500 83.0 55.0 --

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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