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 5022 cfs

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

Sun, Apr 28, 2013 3596.68 11,436,069 5022 7711 84.0 51.8 59.0

Tue, Dec 25, 2012 3611.00 12,831,222 5022 12301 37.9 28.9 49.0

Tue, Feb 19, 2002 3650.56 17,285,532 5022 11320 51.1 30.0 47.0

Tue, Feb 13, 1990 3654.86 17,828,664 5022 8500 66.0 32.0 --

Tue, Jan 30, 1990 3655.66 17,930,638 5022 11100 n/a 24.0 --

Fri, Dec 15, 1989 3659.97 18,489,082 5022 14200 50.0 24.0 --

Mon, Jan 02, 1989 3679.70 21,214,492 5022 5760 58.0 12.0 --

Sat, Dec 28, 1963 3409.00 952,400 5022 980 51.0 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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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