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 8540 cfs

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

Mon, Nov 13, 2023 3572.23 8,687,210 7269 8540 60.6 27.9 64.0

Wed, Nov 10, 2021 3543.63 7,138,033 6261 8540 68.0 46.0 60.0

Thu, Nov 25, 1993 3661.65 18,709,570 10388 8540 45.0 26.0 --

Sun, Nov 22, 1992 3620.11 13,774,902 6943 8540 52.0 32.0 --

Mon, Oct 12, 1981 3672.50 20,308,786 8785 8540 66.0 47.0 --

Mon, Mar 13, 1978 3622.41 14,179,151 8248 8540 58.0 38.0 --

Thu, Nov 17, 1977 3635.12 15,633,472 5575 8540 62.0 37.0 --

Mon, Oct 03, 1977 3636.48 15,792,227 4599 8540 85.0 51.0 --

Mon, Dec 20, 1965 3534.03 6,715,133 11450 8540 42.0 24.0 --

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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