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 6660.00 cfs

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

Sat, Dec 02, 1989 3661.23 18,654,742 5534 6660 53.0 23.0 --

Sat, Oct 21, 1989 3663.79 18,994,076 7020 6660 75.0 46.0 --

Sat, Apr 08, 1978 3623.44 14,291,620 12522 6660 53.0 42.0 --

Sun, Jan 29, 1978 3625.36 14,502,612 5437 6660 48.0 32.0 --

Sun, Aug 15, 1976 3669.63 20,059,284 7206 6660 96.0 65.0 --

Sat, Jan 11, 1969 3539.60 7,049,245 8829 6660 43.0 27.0 --

Sun, Sep 04, 1966 3533.94 6,698,181 8100 6660 88.0 63.0 --

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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