The climate in Chicago during May can be summarized as mild and a little damp.
May is in the spring in Chicago and is typically the 5th warmest month of the year. Daytime maximum temperatures average around 21°C (70°F), whilst at night 9°C (48°F) is normal.
|Daytime temperature||21.1°C 69.9°F|
|Nightly temperature||8.8°C 47.8°F|
|Average temperature||14.9°C 58.8°F|
|Daily sunshine||9.7 hrs|
|Avg rainfall||84 mm 3.3 ins|
|Rainy days||11 days|
|Sea temperature||6.9°C 44.4°F|
|Windspeed||17.6kph 11 mph|
On average May is the 6th wettest month of the year in Chicago with around 84mm 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 9.7 hours of sunshine per day.
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 May 2019.
|Hottest month:||July||28.3°C 82.9°F|
|Driest month:||February||38mm 1.5ins|
|Coldest month:||January||-1.4°C 29.5°F|
|Wettest month:||July||100mm 3.9ins|