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 inflow into Lake Powell was 6863 cfs

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

Tue, Nov 14, 2023 3572.18 8,683,392 6863 8550 64.3 36.9 64.0

Sat, Sep 19, 2015 3607.15 12,445,565 6863 11444 87.1 59.0 77.0

Wed, Jul 21, 2004 3581.97 10,109,240 6863 15378 n/a n/a 79.0

Thu, Dec 29, 1994 3650.17 17,236,878 6863 10400 55.0 31.0 --

Tue, Mar 26, 1968 3522.29 5,925,658 6863 17400 71.0 37.0 --

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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