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 8076 cfs

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

Mon, Nov 11, 2019 3612.37 12,970,340 8076 10836 67.0 39.0 59.0

Sun, Oct 06, 2019 3614.90 13,229,852 8076 9182 75.0 52.0 69.0

Mon, Jan 25, 2010 3622.79 14,061,136 8076 14705 39.9 26.1 49.0

Mon, Nov 15, 2004 3570.61 9,156,481 8076 8233 52.0 37.9 59.0

Tue, Jul 20, 1976 3671.24 20,284,420 8076 13500 94.0 66.0 --

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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