Lake Powell Water Database

The earliest data is from Thursday, March 14th, 1963
The most recent data is from Friday, August 23rd, 2019

Days where inflow into Lake Powell was 8250 cfs

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

Thu, Aug 20, 2009 3638.80 15861837 8250 13244 98.1 70.0 75.0

Tue, Apr 05, 2005 3555.45 7981880 8250 14075 62.1 39.9 52.0

Tue, Dec 28, 1999 3681.58 21489134 8250 16164 52.0 25.0 --

Wed, Aug 14, 1974 3660.25 18843762 8250 18800 95.0 71.0 --

Thu, Apr 02, 1970 3571.03 9422072 8250 14400 64.0 32.0 --

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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