May weather forecastColonial Meadows, IL
May
Weather in May
The last month of the spring, May, is an agreeable month in Colonial Meadows, Illinois, with an average temperature fluctuating between 72°F (22.2°C) and 55.4°F (13°C).Temperature
The beginning of May marks a shift in the average high-temperature, moving from April's refreshing 60.4°F (15.8°C) to an agreeable 72°F (22.2°C). Throughout May, Colonial Meadows registers a consistent average low-temperature of 55.4°F (13°C).Humidity
In Colonial Meadows, the average relative humidity in May is 77%.Rainfall
The month with the most rainfall is May, when the rain falls for 20.1 days and typically aggregates up to 4.57" (116mm) of precipitation.Snowfall
In Colonial Meadows, Illinois, snow does not fall in May through September.Daylight
In Colonial Meadows, the average length of the day in May is 14h and 27min.On the first day of the month, sunrise is at 5:53 am and sunset at 7:51 pm. On the last day of May, sunrise is at 5:27 am and sunset at 8:19 pm CDT.
Sunshine
The average sunshine in May is 8.7h.UV index
The average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: A daily high UV index of 5 in May leads to these guidelines:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Colonial Meadows, IL
- Average high temperature in May: 72°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (30.7°F).
- Average low temperature in May: 55.4°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in May
Colonial Meadows, IL
- Average pressure in May: 29.96"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in May
Colonial Meadows, IL
- Average wind speed in May: 9.3mph
The windiest month (with the highest average wind speed) is January (11.1mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in May
Colonial Meadows, IL
- Average humidity in May: 77%
The month with the highest relative humidity is July (86%).
The month with the lowest relative humidity is October (71%).
Average rainfall in May
Colonial Meadows, IL
- Average rainfall in May: 4.57"
The wettest month (with the highest rainfall) is May (4.57").
The driest month (with the least rainfall) is December (1.93").
Average rainfall days in May
Colonial Meadows, IL
- Average rainfall days in May: 20.1 days
The month with the highest number of rainy days is May (20.1 days).
The month with the least rainy days is February (6.9 days).
Average snowfall in May
Colonial Meadows, IL
- Average snowfall in May: 0"
The month with the highest snowfall is January (5.04").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Colonial Meadows, IL
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (12.8 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
Colonial Meadows, IL
- Average daylight in May: 14h and 24min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in May: 8h and 42min
The month with the most sunshine is June (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in May
Colonial Meadows, IL
- Average sunshine days in May: 8.4 days
The month with the most sunshine days is November (17.4 days).
The month with the least sunshine days is May (8.4 days).
Average UV index in May
Colonial Meadows, 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, October, November and December (UV index 2).
Average cloud cover in May
Colonial Meadows, IL
- Average cloud cover in May: 42
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
Colonial Meadows, IL
- Average visibility in May: 6mi
The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).





