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 6456 cfs

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

Tue, Apr 02, 2024 3558.93 7,711,140 6456 7743 62.8 43.6 --

Tue, Sep 26, 2023 3573.60 8,792,277 6456 6290 85.8 53.1 75.0

Wed, Aug 15, 2007 3605.85 12,317,118 6456 13171 95.0 69.1 82.0

Sun, Apr 10, 1994 3654.15 17,737,814 6456 9190 60.0 39.0 --

Mon, Jun 20, 1977 3655.05 18,077,520 6456 7140 95.0 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