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 inflow into Lake Powell was 8584.00 cfs

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

Mon, Mar 05, 2018 3615.49 13,290,856 8584 13398 48.0 26.0 47.0

Wed, Jul 18, 1990 3649.16 17,111,830 8584 15300 85.0 68.0 --

Thu, Oct 03, 1968 3545.40 7,468,803 8584 7030 78.0 53.0 --

Mon, Dec 14, 1964 3491.57 4,207,644 8584 5910 40.0 20.0 --

Mon, Nov 23, 1964 3491.45 4,201,398 8584 6290 50.0 29.0 --

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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