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 9173.00 cfs

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

Mon, Oct 23, 2017 3627.56 14,581,383 9173 10948 75.0 46.0 65.0

Thu, Jul 29, 2010 3636.67 15,613,307 9173 13354 91.0 75.9 82.0

Thu, Mar 01, 2007 3597.88 11,548,936 9173 10438 44.1 27.0 47.0

Thu, Feb 11, 1993 3613.08 13,042,835 9173 11500 n/a n/a --

Sun, Feb 03, 1980 3672.90 20,395,934 9173 6610 53.0 31.0 --

Thu, Feb 26, 1976 3665.76 19,526,322 9173 17400 61.0 33.0 --

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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