Crystal Lake weather in May (Illinois, United States of America)

What kind of temperatures can you expect in Crystal Lake during May? Wondering about the weather this month? Our guide has all the details you need.

Temperatures

May in Crystal Lake generally includes pleasant temperatures and high rainfall. Anticipate daytime temperatures around 21°C, while night temperatures can drop to 9°C.

Precipitation

Crystal Lake in May usually receives high rainfall, averaging around 105 mm for the month. You can typically expect 13 days days of rain this month, based on climate records.

Average sunshine

There are approximately 282 hours of sunshine this month, meaning plenty of sunny days and a vibrant atmosphere.

If you prefer dry days with pleasant temperatures, September typically offers the best circumstances. While January, February, March, November and December tend to showcase less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized Crystal Lake climate page with graphs.

 

Crystal Lake, monthly averages in May

Min Temperature 9°C  

Max Temperature 21°C  

Chance of Rain 43%  

Precipitation 105 mm  

Rainy days 13 days  

Humidity 64% *  

Sunshine 282 hours *  

Percentage Sunshine 62% *  

Data from: Chicago, the United States of America (44 KM, 27 Miles).

Where to go in the United States of America in May

Find out more about the weather in the United States of America and which places have the best travel conditions in this month.

Weather conditions Weather

Temperatures

Precipitation

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Legend perfect weather pleasant tolerable unpleasant poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in this month?

For visitors traveling to Crystal Lake, we recommend wearing layers. So maybe a skirt, t-shirt, shorts for during the day and jeans and a warm jacket for some days and evenings. Bring a rain jacket in case it rains during your stay. Plan on layering your clothes.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Cycling

9/10

Walking

9/10

Camping

3/10

Outdoor sports

9/10

Interested in more climate information?

This site provides you with all the information you need about the climate in Crystal Lake.

Our site offers climate and forecast data for every country in the world. Are you going to the United States of America? On this website you can find historical weather averages for many cities in the United States of America. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.