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 27400.00 cfs

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

Thu, Sep 25, 1986 3690.16 22,776,626 14771 27400 60.0 47.0 --

Sun, Sep 21, 1986 3690.73 22,864,416 13441 27400 80.0 58.0 --

Wed, Sep 17, 1986 3691.63 23,003,002 15048 27400 85.0 56.0 --

Mon, Aug 11, 1986 3698.37 24,061,218 14456 27400 94.0 72.0 --

Wed, Jul 23, 1986 3699.86 24,299,618 36681 27400 n/a n/a --

Sat, Jul 20, 1985 3697.87 23,981,348 20125 27400 87.0 68.0 --

Fri, Apr 20, 1984 3673.11 20,303,050 27413 27400 61.0 44.0 --

Sat, Oct 08, 1983 3697.77 24,030,006 16652 27400 74.0 57.0 --

Thu, Sep 29, 1983 3698.87 24,205,872 13231 27400 87.0 58.0 --

Thu, Sep 22, 1983 3700.20 24,419,154 11786 27400 87.0 49.0 --

Thu, Jun 02, 1983 3696.78 23,872,794 94899 27400 87.0 66.0 --

Mon, Apr 30, 1973 3590.63 11,091,399 22141 27400 78.0 45.0 --

Mon, Mar 26, 1973 3599.68 11,947,616 13455 27400 61.0 38.0 --

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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