May weather forecastMcConnell, IL
May
Weather in May
The last month of the spring, May, is a comfortable month in McConnell, Illinois, with an average temperature fluctuating between 67.5°F (19.7°C) and 50.5°F (10.3°C).Temperature
In May, the meteorological conditions change with the average high-temperature moving from a refreshing 55.8°F (13.2°C) in April to an enjoyable 67.5°F (19.7°C). In McConnell, an average nighttime temperature of 50.5°F (10.3°C) is expected during May.Humidity
In McConnell, the average relative humidity in May is 80%.Rainfall
In May, the rain falls for 18.3 days. Throughout May, 2.76" (70mm) of precipitation is accumulated. Throughout the year, there are 145.9 rainfall days, and 22.8" (579mm) of precipitation is accumulated.Snowfall
In McConnell, snow does not fall in May through September.Daylight
In McConnell, the average length of the day in May is 14h and 37min.On the first day of the month, sunrise is at 5:52 am and sunset at 7:59 pm. On the last day of May, in McConnell, sunrise is at 5:24 am and sunset at 8:29 pm CDT.
Sunshine
The average sunshine in May in McConnell is 8.4h.UV index
May through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: During May, 5 as the daily maximum UV index converts into the following advice:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
McConnell, IL
- Average high temperature in May: 67.5°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (24.8°F).
- Average low temperature in May: 50.5°F
The month with the highest average low temperature is July (62.8°F).
The coldest month (with the lowest average low temperature) is January (12.9°F).
Average pressure in May
McConnell, IL
- Average pressure in May: 29.95"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in May
McConnell, IL
- Average wind speed in May: 8.8mph
The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in May
McConnell, IL
- Average humidity in May: 80%
The month with the highest relative humidity is January (87%).
The months with the lowest relative humidity are April and October (76%).
Average rainfall in May
McConnell, IL
- Average rainfall in May: 2.76"
The wettest month (with the highest rainfall) is June (3.43").
The driest month (with the least rainfall) is January (1.06").
Average rainfall days in May
McConnell, IL
- Average rainfall days in May: 18.3 days
The month with the highest number of rainy days is May (18.3 days).
The months with the least rainy days are January and February (5.3 days).
Average snowfall in May
McConnell, IL
- Average snowfall in May: 0"
The month with the highest snowfall is January (3.46").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
McConnell, IL
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is January (13.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
McConnell, IL
- Average daylight in May: 14h and 36min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in May: 8h and 24min
The months with the most sunshine are July and August (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in May
McConnell, IL
- Average sunshine days in May: 10.5 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is June (9.3 days).
Average UV index in May
McConnell, IL
- Average UV index in May: 5
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in May
McConnell, IL
- Average cloud cover in May: 44
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is September (Cloud cover 33).
Average visibility in May
McConnell, IL
- Average visibility in May: 6mi
The months with the highest visibility are March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, February, July and August (5mi).





