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 9952 cfs

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

Fri, Oct 09, 1981 3672.46 20,303,124 9952 7920 71.0 51.0 --

Fri, Oct 17, 1980 3686.08 22,316,860 9952 11100 n/a n/a --

Fri, Oct 01, 1976 3663.88 19,271,156 9952 15600 82.0 61.0 --

Fri, Aug 15, 1969 3578.45 10,068,557 9952 16200 99.0 73.0 --

Mon, Aug 11, 1969 3579.14 10,128,442 9952 15900 102.0 75.0 --

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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