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 9020.00 cfs

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

Sun, Jan 15, 2017 3598.14 11,573,496 9020 12498 46.0 41.0 49.0

Thu, Sep 11, 2014 3605.79 12,311,201 9020 10352 89.1 63.0 75.0

Mon, Mar 12, 2012 3634.94 15,413,473 9020 9971 66.9 46.4 49.0

Sun, Apr 14, 1991 3627.16 14,537,590 9020 7270 64.0 37.0 --

Sat, Sep 13, 1975 3670.04 20,146,480 9020 10400 80.0 60.0 --

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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