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 inflow into Lake Powell was 12036.00 cfs

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

Thu, Sep 01, 2011 3655.21 17,872,956 12036 15534 98.1 75.0 81.0

Fri, Jul 24, 2009 3641.72 16,207,068 12036 13304 97.0 75.9 79.0

Fri, Apr 16, 1976 3664.58 19,366,176 12036 13800 57.0 33.0 --

Fri, Feb 26, 1971 3602.62 12,274,058 12036 13900 52.0 24.0 --

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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