May weather forecastArcola, IL
May
Weather in May
The last month of the spring, May, is an agreeable month in Arcola, Illinois, with an average temperature ranging between min 56.7°F (13.7°C) and max 72.7°F (22.6°C).Temperature
The onset of May brings a temperature shift, with the average high-temperature moving from an enjoyable 62.2°F (16.8°C) in April to a pleasant 72.7°F (22.6°C). In Arcola, May nights cool down to an average of 56.7°F (13.7°C).Humidity
The average relative humidity in May in Arcola is 78%.Rainfall
In Arcola, during May, the rain falls for 17.5 days and regularly aggregates up to 2.95" (75mm) of precipitation. In Arcola, during the entire year, the rain falls for 151.5 days and collects up to 25.71" (653mm) of precipitation.Snowfall
In Arcola, snow does not fall in May through September.Daylight
In May, the average length of the day is 14h and 23min.On the first day of May in Arcola, sunrise is at 5:52 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 5:27 am and sunset at 8:14 pm CDT.
Sunshine
In May, the average sunshine in Arcola is 9.1h.UV index
The average daily maximum UV index in May in Arcola, Illinois, is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: In May, a daily UV index of 5 turns into the following recommendations:
Prioritize safety - Recommendations to avert sunburn are shared. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Arcola, IL
- Average high temperature in May: 72.7°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in May: 56.7°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure in May
Arcola, IL
- Average pressure in May: 29.96"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in May
Arcola, IL
- Average wind speed in May: 8.7mph
The windiest months (with the highest average wind speed) are January and February (10.7mph).
The calmest month (with the lowest average wind speed) is July (6.2mph).
Average humidity in May
Arcola, 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 (70%).
Average rainfall in May
Arcola, IL
- Average rainfall in May: 2.95"
The wettest month (with the highest rainfall) is April (3.15").
The driest month (with the least rainfall) is February (1.38").
Average rainfall days in May
Arcola, IL
- Average rainfall days in May: 17.5 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is February (7.5 days).
Average snowfall in May
Arcola, IL
- Average snowfall in May: 0"
The month with the highest snowfall is February (2.17").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Arcola, IL
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (8.5 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
Arcola, IL
- Average daylight in May: 14h and 24min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in May: 9h and 6min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in May
Arcola, IL
- Average sunshine days in May: 10.5 days
The months with the most sunshine days are October and November (17.5 days).
The month with the least sunshine days is May (10.5 days).
Average UV index in May
Arcola, IL
- Average UV index in May: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in May
Arcola, IL
- Average cloud cover in May: 39
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is June (Cloud cover 30).
Average visibility in May
Arcola, 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).
