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 outflow from Lake Powell was 45000 cfs

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

Mon, Jun 17, 1985 3699.97 24,317,196 59818 45000 102.0 74.0 --

Mon, May 21, 1984 3679.01 21,145,692 98648 45000 96.0 56.0 --

Sun, May 20, 1984 3679.26 21,181,964 95824 45000 96.0 56.0 --

Thu, May 17, 1984 3675.95 20,704,842 76699 45000 89.0 56.0 --

Wed, May 16, 1984 3675.31 20,613,914 66611 45000 86.0 56.0 --

Tue, May 15, 1984 3674.79 20,540,024 59024 45000 88.0 57.0 --

Sun, Jun 06, 1965 3491.86 4,216,485 39190 45000 91.0 62.0 --

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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