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 inflow into Lake Powell was 8384.00 cfs

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

Fri, Mar 20, 2020 3601.22 11,866,839 8384 11810 54.0 36.0 52.0

Sat, Sep 19, 2009 3636.07 15,543,795 8384 9737 87.1 61.0 76.0

Tue, Oct 29, 1991 3627.17 14,538,691 8384 8630 50.0 34.0 --

Tue, Jan 12, 1988 3684.54 21,927,466 8384 12000 62.0 26.0 --

Thu, Jan 22, 1981 3680.13 21,402,344 8384 9900 56.0 31.0 --

Sun, Nov 12, 1978 3637.84 15,926,570 8384 8140 55.0 36.0 --

Tue, Jan 07, 1969 3539.54 7,045,091 8384 7310 49.0 25.0 --

Mon, Jan 06, 1969 3539.58 7,047,860 8384 7440 49.0 25.0 --

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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