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 outflow from Lake Powell was 7840 cfs

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

Tue, Oct 03, 2023 3573.44 8,779,963 7395 7840 71.2 42.1 74.0

Sun, Apr 19, 1992 3620.08 13,771,528 15157 7840 69.0 47.0 --

Sun, Mar 05, 1989 3674.40 20,453,786 7882 7840 60.0 25.0 --

Wed, Nov 04, 1981 3671.70 20,196,274 8655 7840 67.0 41.0 --

Wed, May 16, 1979 3653.20 17,784,422 30830 7840 n/a n/a --

Tue, Feb 19, 1974 3648.37 17,310,952 10280 7840 55.0 30.0 --

Mon, Dec 10, 1973 3647.27 17,200,546 10589 7840 49.0 27.0 --

Sat, May 20, 1972 3610.24 13,022,778 16626 7840 87.0 69.0 --

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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