May weather forecastKewanee, IL
May
Weather in May
The last month of the spring, May, is a pleasant month in Kewanee, Illinois, with an average temperature varying between 53.6°F (12°C) and 70.7°F (21.5°C).Temperature
The shift into May is characterized by a rise in the average high-temperature, transitioning from April's moderate 59.2°F (15.1°C) to an agreeable 70.7°F (21.5°C). Kewanee records an average low-temperature of 53.6°F (12°C) throughout the month of May.Humidity
In Kewanee, the average relative humidity in May is 78%.Rainfall
The month with the most rainfall is May, when the rain falls for 18.3 days and typically aggregates up to 4.45" (113mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
The average length of the day in May is 14h and 31min.On the first day of May in Kewanee, Illinois, sunrise is at 5:56 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 5:29 am and sunset at 8:25 pm CDT.
Sunshine
The average sunshine in May in Kewanee is 8.8h.UV index
In Kewanee, Illinois, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: The daily maximum UV index of 5 in May interprets into the following advice:
Ensure safety - Imperative it is to shield skin and eyes from damage. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Kewanee, IL
- Average high temperature in May: 70.7°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (28.8°F).
- Average low temperature in May: 53.6°F
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (16.7°F).
Average pressure in May
Kewanee, IL
- Average pressure in May: 29.95"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in May
Kewanee, IL
- Average wind speed in May: 9.1mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in May
Kewanee, IL
- Average humidity in May: 78%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall in May
Kewanee, IL
- Average rainfall in May: 4.45"
The wettest month (with the highest rainfall) is May (4.45").
The driest months (with the least rainfall) are January and December (1.42").
Average rainfall days in May
Kewanee, IL
- Average rainfall days in May: 18.3 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is February (5.6 days).
Average snowfall in May
Kewanee, IL
- Average snowfall in May: 0"
The month with the highest snowfall is January (3.66").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Kewanee, IL
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (11.4 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
Kewanee, 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 months with the most sunshine are June and July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in May
Kewanee, IL
- Average sunshine days in May: 11.3 days
The month with the most sunshine days is November (18 days).
The month with the least sunshine days is June (10.2 days).
Average UV index in May
Kewanee, IL
- Average UV index in May: 5
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in May
Kewanee, IL
- Average cloud cover in May: 41
The month with the most cloud cover is January (Cloud cover 58).
The months with the least cloud cover are August and September (Cloud cover 30).
Average visibility in May
Kewanee, 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).





