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 9631 cfs

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

Thu, Mar 10, 1994 3655.11 17,860,192 9631 10000 69.0 35.0 --

Sun, Mar 20, 1988 3681.87 21,531,908 9631 5500 68.0 31.0 --

Sat, Jan 08, 1977 3654.62 18,022,130 9631 18300 36.0 28.0 --

Mon, Feb 16, 1976 3666.42 19,616,508 9631 8590 52.0 33.0 --

Sun, Feb 01, 1976 3666.82 19,671,442 9631 4670 53.0 27.0 --

Thu, Feb 28, 1974 3648.49 17,326,004 9631 8450 62.0 35.0 --

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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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Copyright Summit Technologies, Inc.
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