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 8288 cfs

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

Mon, Nov 23, 2015 3605.87 12,319,078 8288 10960 48.9 28.9 60.0

Mon, Oct 17, 1994 3653.88 17,703,506 8288 8560 59.0 42.0 --

Sat, Oct 04, 1975 3667.72 19,824,992 8288 11200 87.0 55.0 --

Thu, Apr 10, 1975 3646.15 17,007,804 8288 8160 61.0 32.0 --

Wed, Jan 10, 1968 3526.94 6,219,458 8288 11300 30.0 18.0 --

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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