Lake Powell Water Database

powell
powell

The earliest data is from Monday, March 11th, 1963
The most recent data is from Wednesday, October 1st, 2025

Days where outflow from Lake Powell was 8450 cfs

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

Sat, May 10, 1980 3682.16 21,731,964 49182 8450 n/a n/a --

Thu, Feb 07, 1980 3672.90 20,395,934 11025 8450 44.0 32.0 --

Sat, Oct 06, 1979 3677.72 21,114,374 7942 8450 87.0 54.0 --

Thu, Aug 05, 1976 3670.24 20,144,238 9612 8450 95.0 63.0 --

Tue, Apr 02, 1974 3651.17 17,664,310 10000 8450 67.0 50.0 --

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

Thu, Oct 04, 1973 3645.92 17,032,540 9250 8450 78.0 53.0 --

Sat, Sep 28, 1968 3545.43 7,470,948 8733 8450 88.0 55.0 --

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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