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 inflow into Lake Powell was 14195.00 cfs

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

Wed, May 12, 2010 3621.43 13,915,333 14195 9975 63.0 42.1 55.0

Sat, May 14, 1988 3684.70 21,951,292 14195 8300 92.0 57.0 --

Sat, Sep 28, 1985 3685.99 22,144,498 14195 21200 83.0 59.0 --

Wed, Dec 21, 1983 3686.72 22,317,656 14195 23600 49.0 26.0 --

Tue, Dec 20, 1983 3686.87 22,340,208 14195 23500 48.0 31.0 --

Thu, Sep 15, 1983 3701.68 24,658,910 14195 26400 95.0 65.0 --

Fri, Sep 10, 1965 3529.98 6,447,158 14195 14700 89.0 58.0 --

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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