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 outflow from Lake Powell was 8330 cfs

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

Thu, Nov 21, 2002 3623.74 14,163,648 5649 8330 55.9 36.0 57.0

Mon, Sep 23, 2002 3627.12 14,532,829 6395 8330 89.1 61.0 75.0

Wed, Oct 05, 1994 3654.25 17,750,542 7888 8330 84.0 54.0 --

Fri, Apr 26, 1991 3627.39 14,562,888 9639 8330 69.0 42.0 --

Mon, Oct 01, 1990 3637.59 15,720,450 8569 8330 81.0 60.0 --

Tue, May 03, 1988 3683.85 21,824,664 13538 8330 80.0 41.0 --

Thu, Feb 06, 1975 3645.89 16,975,628 8769 8330 45.0 28.0 --

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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