O'Fallon, MO Weather Records Since April 2005
Temperature | ||
Highest Temperature | 107.3 °F | at 5:00 PM on 28 June 2012 |
Highest Heat Index | 124.1 °F | at 6:28 PM on 02 August 2011 |
Lowest Temperature | -8.8 °F | at 7:44 AM on 06 January 2014 |
Lowest Windchill | -33.5 °F | at 8:26 AM on 06 January 2014 |
Highest Minimum | 83.0 °F | at 6:09 AM on 24 July 2012 |
Lowest Maximum | 1.9 °F | at 12:00 AM on 06 January 2014 |
Rainfall | ||
Highest Rain Rate | 18.00 in/hr | at 8:35 AM on 16 June 2011 |
Highest Hourly Rain | 3.24 in | at 12:11 AM on 09 August 2020 |
Highest Daily Rain | 3.75 in | on 27 December 2015 |
Highest Monthly Rain | 12.03 in | October 2009 |
Wind | ||
Highest Gust | 58.0 mph | at 5:00 PM on 18 June 2012 |
Highest Average | 26.0 mph | at 4:57 PM on 20 February 2014 |
Pressure | ||
Highest Pressure | 30.984 in | at 4:27 PM on 07 January 2015 |
Lowest Pressure | 29.027 in | at 3:30 AM on 26 October 2010 |
Page Updated | 4/11/2021 7:10:01 PM |