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 9500 cfs

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

Sun, Nov 01, 2015 3606.41 12,372,334 8434 9500 69.1 46.0 66.0

Tue, Oct 11, 1994 3654.02 17,721,306 8015 9500 79.0 47.0 --

Sat, May 09, 1992 3622.99 14,082,919 20978 9500 85.0 61.0 --

Sun, Aug 14, 1988 3689.60 22,691,214 5976 9500 n/a n/a --

Wed, May 18, 1988 3685.16 22,019,986 18557 9500 82.0 53.0 --

Fri, Mar 18, 1983 3683.57 21,846,138 17665 9500 53.0 36.0 --

Mon, Oct 01, 1979 3678.06 21,163,600 7802 9500 90.0 59.0 --

Mon, Oct 04, 1976 3663.76 19,255,060 8494 9500 68.0 46.0 --

Fri, May 25, 1973 3611.34 13,115,556 73189 9500 86.0 58.0 --

Sat, Oct 07, 1972 3603.26 12,318,055 9769 9500 72.0 56.0 --

Mon, Oct 18, 1971 3613.81 13,414,453 11303 9500 50.0 39.0 --

Tue, Mar 23, 1971 3602.53 12,265,140 9428 9500 77.0 44.0 --

Wed, Mar 10, 1971 3602.36 12,248,317 11736 9500 67.0 37.0 --

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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