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 7845 cfs

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

Thu, Jan 18, 2024 3566.37 8,247,484 7845 11774 51.8 35.2 --

Wed, Jul 27, 2016 3618.94 13,651,246 7845 16100 106.0 75.0 79.0

Fri, Mar 28, 2014 3574.90 9,508,932 7845 8105 64.0 44.1 51.0

Sun, Aug 23, 2009 3638.42 15,817,296 7845 12085 90.0 66.0 76.0

Sun, Oct 28, 1990 3637.39 15,697,228 7845 5010 73.0 47.0 --

Mon, Oct 13, 1975 3666.80 19,698,568 7845 9050 70.0 47.0 --

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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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Copyright Summit Technologies, Inc.
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