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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, the same as December, is an icy winter month in Vermilion, Illinois, with an average temperature fluctuating between 33.8°F (1°C) and 21.7°F (-5.7°C). In Vermilion, January is the coldest month, with temperatures averaging a high of 33.8°F (1°C) and a low of 21.7°F (-5.7°C). Weather in January »
Weather in February
February, the last month of the winter in Vermilion, is also an icy month, with an average temperature ranging between max 38.8°F (3.8°C) and min 25.5°F (-3.6°C). February denotes a minimal variation in the average high-temperature to a still cold 38.8°F (3.8°C) from January's 33.8°F (1°C). Weather in February »
Weather in March
March, the first month of the spring in Vermilion, is a cool month, with an average temperature ranging between max 50.4°F (10.2°C) and min 36°F (2.2°C). Vermilion's March weather shows an increase in high-temperatures, moving from February's wintry 38.8°F (3.8°C) to a fresh 50.4°F (10.2°C). Weather in March »
Weather in April
April is a refreshing spring month in Vermilion, Illinois, with temperature in the range of an average high of 62.2°F (16.8°C) and an average low of 46°F (7.8°C). Vermilion experiences a temperature shift with the start of April, with average high-temperatures moving from a cool 50.4°F (10.2°C) in March to a refreshing 62.2°F (16.8°C). Weather in April »
Weather in May
The last month of the spring, May, is an agreeable month in Vermilion, Illinois, with an average temperature varying between 72.7°F (22.6°C) and 56.1°F (13.4°C). 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). Weather in May »
Weather in June
June, the first month of the summer in Vermilion, is a warm month, with an average temperature ranging between max 80.6°F (27°C) and min 64°F (17.8°C). Vermilion observes a slight uplift in the average high-temperature with the onset of June, adjusting from May's agreeable 72.7°F (22.6°C) to a moderately hot 80.6°F (27°C). Weather in June »
Weather in July
July, the same as June, is another warm summer month in Vermilion, Illinois, with an average temperature fluctuating between 82.4°F (28°C) and 65.8°F (18.8°C). July is the month that records the highest temperatures, with averages ranging from a high of 82.4°F (28°C) to a low of 65.8°F (18.8°C). The heat index for July is computed to be a tropical 91.4°F (33°C). Weather in July »
Weather in August
August, the last month of the summer in Vermilion, is also a moderately hot month, with temperature in the range of an average low of 64°F (17.8°C) and an average high of 81.1°F (27.3°C). August's arrival brings an average high-temperature of a still moderately hot 81.1°F (27.3°C), slightly deviating from July's 82.4°F (28°C). Weather in August »
Weather in September
The first month of the autumn, September, is still a warm month in Vermilion, Illinois, with temperature in the range of an average high of 77.2°F (25.1°C) and an average low of 58.6°F (14.8°C). With the advent of September, Vermilion's high-temperatures adjust to a still warm 77.2°F (25.1°C), closely aligning with the preceding month. Weather in September »
Weather in October
October, like September, in Vermilion, Illinois, is another enjoyable autumn month, with an average temperature fluctuating between 47.7°F (8.7°C) and 64°F (17.8°C). The beginning of October involves a decrease in the average high-temperature, transitioning from a moderately hot 77.2°F (25.1°C) in September to a refreshing 64°F (17.8°C). Weather in October »
Weather in November
The last month of the autumn, November, is another chilly month in Vermilion, Illinois, with temperature in the range of an average low of 36°F (2.2°C) and an average high of 49.6°F (9.8°C). Vermilion in November sees a clear temperature decline, with average high-temperatures decreasing from a comfortable 64°F (17.8°C) in October to a chilly 49.6°F (9.8°C). Weather in November »
Weather in December
December, the first month of the winter in Vermilion, is still a cold month, with an average temperature ranging between max 39°F (3.9°C) and min 28.2°F (-2.1°C). In December, the average high-temperature goes from a frosty 49.6°F (9.8°C) in November to a cold 39°F (3.9°C). Weather in December »
[Resources]Frequently asked questions
What is the coldest month in Vermilion?
The coldest temperatures occur during January, when averages reach a peak of 33.8°F (1°C) and a low of 21.7°F (-5.7°C).
How many days does it rain in Vermilion?
In Vermilion, Illinois, during the entire year, the rain falls for 133.4 days and collects up to 19.49" (495mm) of precipitation.
When does it snow in Vermilion?
Months with snowfall are January through April, November and December.
How much does it snow in Vermilion?
Throughout the year, in Vermilion, Illinois, there are 23.7 snowfall days, and 5.2" (132mm) of snow is accumulated.
What is the month with the least sunshine in Vermilion?
January has the least sunshine of the year, with an average of 4h of sunshine.
When is the lowest UV index in Vermilion?
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.
What is the driest month in Vermilion?
The month with the least rainfall is February, when the rain falls for 6.3 days and typically collects 0.94" (24mm) of precipitation.
When is Daylight Saving Time (DST) in Vermilion?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.
What is the rainiest month in Vermilion?
April is the month with the most rainfall in Vermilion. Rain falls for 13.6 days and accumulates 2.76" (70mm) of precipitation.
When it does not snow in Vermilion?
May through October are months without snowfall.
When are the longest days in Vermilion?
With an average of 14h and 54min of daylight, June has the longest days of the year in Vermilion.
What month has the most sunshine in Vermilion?
With an average of 10.3h of sunshine, June has the most sunshine of the year in Vermilion, Illinois.
When is the highest UV index in Vermilion?
The months with the highest UV index in Vermilion, Illinois, are June and July, with an average maximum UV index of 6.
What are the warmest months in Vermilion?
With an average high-temperature of 82.4°F (28°C) and an average low-temperature of 65.8°F (18.8°C), July is the warmest month in Vermilion, Illinois.
What is the most humid month in Vermilion?
With an average relative humidity of 83%, July is the most humid month in Vermilion.
What is the least humid month in Vermilion?
October is the least humid month, with an average relative humidity of 71%.
What is the snowiest month in Vermilion?
The month with the most snowfall in Vermilion, Illinois, is December, when snow falls for 4.8 days and typically aggregates up to 1.61" (41mm) of snow.
What is the month with the shortest days in Vermilion?
The month with the shortest days is December, with an average of 9h and 24min of daylight.
Average temperature
Vermilion, IL
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).
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
Vermilion, IL
- Average pressure in January:
30.15"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.95"Hg - Average pressure in May:
29.96"Hg - Average pressure in June:
29.93"Hg
- Average pressure in July:
29.98"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.13"Hg - Average pressure in December:
30.13"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
Vermilion, IL
- Average wind speed in January:
10.3mph - Average wind speed in February:
10.3mph - Average wind speed in March:
10mph - Average wind speed in April:
10.1mph - Average wind speed in May:
8.4mph - Average wind speed in June:
7.3mph
- Average wind speed in July:
6.1mph - Average wind speed in August:
6.1mph - Average wind speed in September:
6.9mph - Average wind speed in October:
8.9mph - Average wind speed in November:
9.6mph - Average wind speed in December:
9.5mph
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
Vermilion, IL
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Vermilion, IL
- Average rainfall in January:
1.34" - Average rainfall in February:
0.94" - Average rainfall in March:
1.38" - Average rainfall in April:
2.76" - Average rainfall in May:
2.4" - Average rainfall in June:
2.13"
- Average rainfall in July:
1.89" - Average rainfall in August:
1.54" - Average rainfall in September:
1.1" - Average rainfall in October:
1.69" - Average rainfall in November:
1.06" - Average rainfall in December:
1.26"
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
Vermilion, IL
- Average rainfall days in January:
6.9 days - Average rainfall days in February:
6.3 days - Average rainfall days in March:
11.3 days - Average rainfall days in April:
13.6 days - Average rainfall days in May:
16.8 days - Average rainfall days in June:
13.7 days
- Average rainfall days in July:
15.6 days - Average rainfall days in August:
12.4 days - Average rainfall days in September:
11 days - Average rainfall days in October:
9.9 days - Average rainfall days in November:
7.6 days - Average rainfall days in December:
8.3 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
Vermilion, IL
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
Vermilion, IL
- Average snowfall days in January:
6.9 days - Average snowfall days in February:
6.5 days - Average snowfall days in March:
3.3 days - Average snowfall days in April:
0.5 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0.1 days - Average snowfall days in November:
1.6 days - Average snowfall days in December:
4.8 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 / Average sunshine
Vermilion, IL
- Average daylight in January:
9h and 5min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 2min - Average daylight in June:
14h and 5min
- Average daylight in July:
14h and 4min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 0min - Average daylight in December:
9h 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 January:
4h and 0min - Average sunshine in February:
4h and 2min - Average sunshine in March:
6h and 2min - Average sunshine in April:
8h and 1min - Average sunshine in May:
8h and 5min - Average sunshine in June:
10h and 2min
- Average sunshine in July:
10h and 0min - Average sunshine in August:
10h and 1min - Average sunshine in September:
9h and 0min - Average sunshine in October:
6h and 3min - Average sunshine in November:
5h and 2min - Average sunshine in December:
4h and 2min
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
Vermilion, IL
- Average sunshine days in January:
18.1 days - Average sunshine days in February:
16.3 days - Average sunshine days in March:
15.5 days - Average sunshine days in April:
13.8 days - Average sunshine days in May:
11.3 days - Average sunshine days in June:
12.4 days
- Average sunshine days in July:
11.8 days - Average sunshine days in August:
14.9 days - Average sunshine days in September:
17.2 days - Average sunshine days in October:
18.6 days - Average sunshine days in November:
20 days - Average sunshine days in December:
19.2 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
Vermilion, IL
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
Vermilion, IL
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
Vermilion, IL
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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