May weather forecastKankakee, IL
May
Weather in May
The last month of the spring, May, is a pleasant month in Kankakee, Illinois, with temperature in the range of an average high of 71.1°F (21.7°C) and an average low of 54.1°F (12.3°C).Temperature
The transition from April to May brings a temperature rise, with average high-temperatures increasing from a refreshing 59°F (15°C) to a pleasant 71.1°F (21.7°C). Throughout May, Kankakee witnesses a nighttime temperature average of 54.1°F (12.3°C).Humidity
In Kankakee, the average relative humidity in May is 76%.Rainfall
May is the month with the most rainfall in Kankakee. Rain falls for 11.4 days and accumulates 1.06" (27mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
In May, the average length of the day is 14h and 30min.On the first day of the month, sunrise is at 5:48 am and sunset at 7:48 pm. On the last day of May, in Kankakee, sunrise is at 5:21 am and sunset at 8:17 pm CDT.
Sunshine
In May, the average sunshine is 8.8h.UV index
In Kankakee, the average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: The daily high UV index of 5 during May translates into the following recommendations:
Take precautions - Protection against sun damage is advised. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Kankakee, IL
- Average high temperature in May: 71.1°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (30°F).
- Average low temperature in May: 54.1°F
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).
Average pressure in May
Kankakee, IL
- Average pressure in May: 29.96"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in May
Kankakee, IL
- Average wind speed in May: 8.6mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).
Average humidity in May
Kankakee, IL
- Average humidity in May: 76%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall in May
Kankakee, IL
- Average rainfall in May: 1.06"
The wettest month (with the highest rainfall) is May (1.06").
The driest month (with the least rainfall) is November (0.28").
Average rainfall days in May
Kankakee, IL
- Average rainfall days in May: 11.4 days
The month with the highest number of rainy days is May (11.4 days).
The month with the least rainy days is January (2.3 days).
Average snowfall in May
Kankakee, IL
- Average snowfall in May: 0"
The month with the highest snowfall is January (0.75").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Kankakee, IL
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (5.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Kankakee, IL
- Average daylight in May: 14h and 30min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in May: 8h and 48min
The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in May
Kankakee, IL
- Average sunshine days in May: 16.8 days
The month with the most sunshine days is January (24.8 days).
The month with the least sunshine days is June (15.7 days).
Average UV index in May
Kankakee, IL
- Average UV index in May: 5
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in May
Kankakee, IL
- Average cloud cover in May: 41
The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are August and September (Cloud cover 33).
Average visibility in May
Kankakee, IL
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).





