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 inflow into Lake Powell was 9184 cfs

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

Wed, Jul 01, 2020 3610.53 12,783,723 9184 13254 92.0 63.0 75.0

Mon, Nov 29, 1993 3661.59 18,701,670 9184 9640 49.0 25.0 --

Sun, Dec 15, 1991 3625.55 14,360,955 9184 9580 43.0 28.0 --

Fri, Dec 01, 1978 3636.13 15,726,196 9184 11200 52.0 35.0 --

Wed, Feb 25, 1976 3665.86 19,539,892 9184 16500 59.0 34.0 --

Sun, Feb 09, 1975 3645.93 16,980,560 9184 7170 55.0 35.0 --

Thu, Mar 26, 1970 3571.43 9,455,378 9184 8600 61.0 32.0 --

Sun, Feb 08, 1970 3569.39 9,286,082 9184 3100 61.0 33.0 --

Fri, Feb 06, 1970 3569.26 9,275,395 9184 9990 58.0 33.0 --

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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