Wilmington, OH Climate

Summary Graph

The summary climate graph for Wilmington, OH shows a selection of temperature, rainfall and snow minimum, mean and maximum measures over the course of a year. Click on each of the measures in the key to toggle them on and off.

Graph of average and extreme temperature ranges by day for Wilmington, OH.


The warmest month in Wilmington Airborne Airpark, Wilmington, Ohio is July with an average high temperature of 84.4°F. The hottest day on record was July 14 1954 when the temperature hit 100.9°F. During January the overnight temperature drops to an average of 22.3°F with the lowest temperature of -17.0°F being recorded on January 24 1963.

Warmest Days

Warmest Months

Coldest Days

Coldest Months

The warmest days on record are:

14 Jul 1954100.9°F
7 Jul 2012100.9°F
27 Jun 1944100.2°F
27 Aug 1948100.2°F
31 Jul 1999100°F

The warmest months on average were:

July 199992.2°F
July 194489.6°F
July 201188.9°F
July 201288.9°F
August 194788.4°F

The coldest days on record are:

24 Jan 1963-17°F
22 Jan 2011-13°F
30 Jan 1966-9.9°F
8 Jan 1968-9.9°F
25 Jan 1961-9°F

The coldest months on average were:

February 200713.1°F
January 196314.4°F
January 194814.5°F
January 197014.9°F
February 194715.8°F


The wettest month in Wilmington, OH is April with an average of 1.2 inches of rain falling on 12 to 13 days. The driest month in Wilmington, OH is February with an average of 0.7 inches of rain falling on 7 to 8 days.

Wettest Days

The wettest days on record are:

31 August 20053.4 inches
24 August 19992.4 inches
28 August 20061.7 inches
9 August 20111.5 inches
30 August 20071.4 inches

Wettest Months

The wettest months on record are:

April 20119 inches
March 20088.6 inches
June 19987.6 inches
April 19987.4 inches
September 20067.4 inches

Driest Months

The driest months on record are:

July 19460 inches
October 19430 inches
November 19430 inches
December 19430 inches
January 19440 inches