Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
Vermilion, Illinois, sees an increase in the average high-temperature with the arrival of May, moving from April's refreshing 62.2°F (16.8°C) to a pleasant 72.7°F (22.6°C). During the nights in May, Vermilion experiences a consistent average temperature of 56.1°F (13.4°C).Humidity
In Vermilion, Illinois, the average relative humidity in May is 80%.Rainfall
In May, the rain falls for 16.8 days. Throughout May, 2.4" (61mm) of precipitation is accumulated. In Vermilion, during the entire year, the rain falls for 133.4 days and collects up to 19.49" (495mm) of precipitation.Snowfall
In Vermilion, snow does not fall in May through October.Daylight
In May, the average length of the day is 14h and 22min.On the first day of May in Vermilion, Illinois, sunrise is at 5:50 am and sunset at 7:44 pm. On the last day of the month, sunrise is at 5:24 am and sunset at 8:11 pm CDT.
Sunshine
The average sunshine in May is 8.9h.UV index
In Vermilion, 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 rays for ordinary individuals.Note: The maximum daily UV index of 5 in May interprets into the following recommendations:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Frequently asked questions
What is the average May temperature in Vermilion?
What is the average humidity in May in Vermilion?
How many days does it rain in May in Vermilion?
When it does not snow in Vermilion?
Does it snow in Vermilion in May?
How many hours of daylight does Vermilion have in May?
When is the sunrise / sunset in May in Vermilion?
How long on average sun shines in May in Vermilion?
What is the UV index intensity in May in Vermilion?
Average temperature in May
Vermilion, IL
- Average high temperature in May: 72.7°F
The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (33.8°F).
- Average low temperature in May: 56.1°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 (21.7°F).
Average pressure in May
Vermilion, 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
Vermilion, IL
- Average wind speed in May: 8.4mph
The windiest months (with the highest average wind speed) are January and February (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.1mph).
Average humidity in May
Vermilion, IL
- Average humidity in May: 80%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall in May
Vermilion, IL
- Average rainfall in May: 2.4"
The wettest month (with the highest rainfall) is April (2.76").
The driest month (with the least rainfall) is February (0.94").
Average rainfall days in May
Vermilion, IL
- Average rainfall days in May: 16.8 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is February (6.3 days).
Average snowfall in May
Vermilion, IL
- Average snowfall in May: 0"
The month with the highest snowfall is December (1.61").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Vermilion, IL
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (6.9 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
Vermilion, IL
- Average daylight in May: 14h and 2min
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: 8h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in May
Vermilion, IL
- Average sunshine days in May: 11.3 days
The month with the most sunshine days is November (20 days).
The month with the least sunshine days is May (11.3 days).
Average UV index in May
Vermilion, 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, February, November and December (UV index 2).
Average cloud cover in May
Vermilion, IL
- Average cloud cover in May: 41
The month with the most cloud cover is January (Cloud cover 56).
The months with the least cloud cover are June, August and September (Cloud cover 31).
Average visibility in May
Vermilion, 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).
Vermilion, Illinois, USA
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