Crystal Lake Weather in May

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

The climate in Crystal Lake during May can be summarized as mild and a little damp.

May is in the spring in Crystal Lake and is typically the 5th warmest month of the year. Daytime maximum temperatures average around 21°C (70°F), whilst at night 8°C (46°F) is normal.

Crystal Lake weather averages (imperial / metric)
Daytime temperature 20.9°C 69.5°F
Nightly temperature 8°C 46.3°F
Average temperature 14.4°C 57.9°F
Daily sunshine 9.6 hrs
Avg rainfall 85 mm 3.3 ins
Rainy days 11 days
Sea temperature 6.5°C 43.7°F
Humidity 66%
Windspeed 18kph 11 mph

On average May is the 6th wettest month of the year in Crystal Lake with around 85mm 3.3 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 11 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 Crystal Lake

Crystal Lake average temperature in May

May rainfall

Crystal Lake average rain in May

May hourly sunshine

Crystal Lake 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 Crystal Lake 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

Crystal Lake weather stats

Crystal Lake weather statistics
Hottest month: July 28.2°C 82.8°F
Driest month: February 32mm 1.3ins
Sunniest month: July 10.9hrs
Coldest month: January -2.7°C 27.1°F
Wettest month: June 102mm 4ins
Map showing location of Crystal Lake (42.24113, -88.3162) Crystal Lake map pin © Google

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