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 8950.00 cfs

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

Sun, Nov 22, 2015 3605.93 12,324,988 8950 9477 50.0 28.0 60.0

Tue, Mar 04, 2014 3575.56 9,563,947 8950 8302 63.0 45.0 48.0

Thu, Oct 04, 2007 3601.75 11,917,809 8950 10067 80.1 57.9 69.0

Thu, Feb 11, 1988 3682.59 21,637,742 8950 13000 60.0 28.0 --

Wed, Feb 14, 1979 3627.10 14,671,982 8950 11700 53.0 29.0 --

Tue, Feb 01, 1966 3535.11 6,777,261 8950 11600 48.0 27.0 --

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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