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 10323 cfs

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

Thu, Sep 30, 2021 3545.36 7,257,712 4394 10323 72.0 54.0 73.0

Sun, Dec 20, 2020 3584.15 10,299,238 4002 10323 47.0 26.0 51.0

Tue, Apr 14, 2009 3609.76 12,706,157 8299 10323 72.0 55.9 55.0

Mon, Apr 13, 2009 3609.82 12,712,190 8097 10323 73.0 44.1 53.0

Mon, May 02, 2005 3563.64 8,602,826 25065 10323 68.0 46.0 58.0

Wed, May 22, 2002 3644.37 16,525,107 6820 10323 71.1 44.1 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