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 Lake Powell had 18,799,602 acre feet of water storage

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

Sat, Oct 23, 1993 3662.33 18,799,602 10136 8190 n/a n/a --

Fri, Oct 22, 1993 3662.33 18,799,602 10201 9380 n/a n/a --

Thu, Oct 21, 1993 3662.33 18,799,602 10579 8920 n/a n/a --

Wed, Oct 13, 1993 3662.33 18,799,602 9488 9010 n/a n/a --

Mon, Oct 11, 1993 3662.33 18,799,602 10039 8740 n/a n/a --

Sun, Oct 10, 1993 3662.33 18,799,602 8785 7960 n/a n/a --

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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