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 4987 cfs

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

Tue, Dec 27, 2016 3601.22 11,866,839 4987 16087 41.0 26.0 53.0

Fri, Aug 22, 2003 3606.10 12,341,752 4987 15604 93.0 66.9 79.0

Sun, Feb 24, 2002 3650.15 17,234,384 4987 9773 62.1 37.9 --

Fri, Oct 05, 2001 3664.35 19,068,996 4987 10113 82.9 62.1 74.0

Wed, Mar 25, 1964 3414.90 1,123,997 4987 4050 n/a n/a --

Wed, Dec 04, 1963 851,400 4987 1030 50.0 22.0 --

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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