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 11227 cfs

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

Tue, Feb 03, 1998 3678.67 21,064,986 11227 19000 n/a n/a --

Sun, Jan 18, 1998 3680.44 21,322,206 11227 19000 55.0 32.0 --

Mon, Aug 25, 1986 3695.58 23,619,072 11227 27600 89.0 72.0 --

Wed, Aug 22, 1979 3681.98 21,736,910 11227 13600 92.0 59.0 --

Tue, Nov 12, 1974 3650.21 17,542,718 11227 10900 58.0 40.0 --

Wed, Aug 18, 1965 3533.37 6,670,968 11227 16000 89.0 58.0 --

Tue, Aug 17, 1965 3533.51 6,680,324 11227 13100 84.0 66.0 --

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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