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 8730 cfs

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

Sat, Jan 07, 2017 3599.41 11,693,881 8730 13266 32.0 24.0 51.0

Sat, Sep 22, 2007 3601.62 11,905,305 8730 9443 82.9 60.1 74.0

Sun, Aug 21, 2005 3604.50 12,184,653 8730 12318 93.0 64.0 79.0

Fri, Aug 14, 1970 3599.71 12,007,539 8730 12200 96.0 77.0 --

Thu, Dec 07, 1967 3528.04 6,299,874 8730 10100 48.0 28.0 --

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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