Harrisburg Weather in May

What's the weather like in Harrisburg (Illinois) in May 2024?

The climate in Harrisburg during May can be summarized as warm and wet.

May is in the spring in Harrisburg and is typically the 5th warmest month of the year. Daytime maximum temperatures average around a comfortable 26°C (79°F), whilst at night 13°C (55°F) is normal.

Harrisburg weather averages (imperial / metric)
Daytime temperature 25.9°C 78.6°F
Nightly temperature 12.5°C 54.5°F
Average temperature 19.2°C 66.6°F
Daily sunshine 9.6 hrs
Avg rainfall 129 mm 5.1 ins
Rainy days 10 days
Sea temperature 14.6°C 58.3°F
Humidity 68%
Windspeed 14.8kph 9 mph

On average May is the wettest month of the year in Harrisburg with around 129mm 5.1 inches of rain making it a wet time to visit. This rainfall is typically spread over 10 days, although this may vary considerably.

On the flip side this corresponds to an average of 9.6 hours of sunshine per day.

May temperatures in Harrisburg

Harrisburg average temperature in May

May rainfall

Harrisburg average rain in May

May hourly sunshine

Harrisburg average rain in May

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Harrisburg in May 2024.

Other monthly averages

Best places to visit in May

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Harrisburg weather stats

Harrisburg weather statistics
Hottest month: July 32.2°C 90°F
Driest month: October 74mm 2.9ins
Sunniest month: July 11hrs
Coldest month: January 4.7°C 40.5°F
Wettest month: May 129mm 5.1ins
Map showing location of Harrisburg (37.73838, -88.54061) Harrisburg map pin © Google

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