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 outflow from Lake Powell was 9730 cfs

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

Thu, Mar 05, 1992 3619.74 13,735,569 8472 9730 65.0 44.0 --

Sun, Dec 08, 1991 3625.92 14,401,271 6226 9730 52.0 30.0 --

Mon, Jan 01, 1979 3632.74 15,308,993 8151 9730 35.0 12.0 --

Sat, Jun 17, 1978 3643.45 16,597,594 57363 9730 n/a 62.0 --

Thu, Aug 30, 1973 3645.28 16,953,512 15027 9730 87.0 67.0 --

Mon, Sep 25, 1967 3528.61 6,336,725 8597 9730 71.0 57.0 --

Fri, Jan 29, 1965 3491.52 4,198,819 10445 9730 54.0 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