May weather forecastClarke City, IL
May
Weather in May
The last month of the spring, May, is an agreeable month in Clarke City, Illinois, with an average temperature varying between 70.9°F (21.6°C) and 54.1°F (12.3°C).Temperature
May brings a rise in Clarke City's average high-temperature, moving from a refreshing 58.8°F (14.9°C) in April to an agreeable 70.9°F (21.6°C). The average low-temperature during May nights is a cool 54.1°F (12.3°C).Humidity
The average relative humidity in May is 76%.Rainfall
May is the month with the most rainfall. Rain falls for 17.1 days and accumulates 2.91" (74mm) of precipitation.Snowfall
In Clarke City, snow does not fall in May through September.Daylight
In May, the average length of the day in Clarke City is 14h and 31min.On the first day of the month, sunrise is at 5:49 am and sunset at 7:50 pm. On the last day of May, sunrise is at 5:22 am and sunset at 8:18 pm CDT.
Sunshine
In Clarke City, the average sunshine in May is 8.9h.UV index
In May, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: The daily high UV index of 5 during May translates into the following recommendations:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Clarke City, IL
- Average high temperature in May: 70.9°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 (29.8°F).
- Average low temperature in May: 54.1°F
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (18°F).
Average pressure in May
Clarke City, 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
Clarke City, IL
- Average wind speed in May: 8.6mph
The windiest months (with the highest average wind speed) are January and April (10.1mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in May
Clarke City, 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
Clarke City, IL
- Average rainfall in May: 2.91"
The wettest month (with the highest rainfall) is May (2.91").
The driest month (with the least rainfall) is February (0.98").
Average rainfall days in May
Clarke City, IL
- Average rainfall days in May: 17.1 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is February (5.1 days).
Average snowfall in May
Clarke City, IL
- Average snowfall in May: 0"
The month with the highest snowfall is February (2.52").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Clarke City, IL
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (11.5 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
Clarke City, 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 54min
The month with the most sunshine is June (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in May
Clarke City, IL
- Average sunshine days in May: 11 days
The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is July (9.5 days).
Average UV index in May
Clarke City, 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
Clarke City, IL
- Average cloud cover in May: 41
The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are August and September (Cloud cover 33).
Average visibility in May
Clarke City, 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).





