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 11399.00 cfs

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

Sat, Apr 17, 2004 3583.20 10,216,153 11399 10108 73.9 51.1 59.0

Fri, Nov 05, 1999 3688.02 22,450,488 11399 18067 73.0 40.0 63.5

Mon, Apr 25, 1994 3653.54 17,660,394 11399 11000 70.0 37.0 --

Thu, Apr 05, 1973 3596.53 11,644,714 11399 27900 62.0 36.0 --

Sun, Apr 28, 1968 3514.40 5,446,756 11399 12600 69.0 44.0 --

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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