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 8034 cfs

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

Sun, Sep 12, 2010 3634.05 15,311,375 8034 8034 88.0 59.0 74.0

Sat, Mar 13, 2010 3620.06 13,769,592 8034 9070 60.1 36.0 50.0

Wed, Aug 01, 2007 3607.19 12,449,526 8034 13419 96.1 73.0 81.0

Thu, Sep 01, 1988 3688.02 22,450,062 8034 13100 95.0 60.0 --

Thu, Mar 28, 1963 8034 1040 75.0 56.0 --

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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