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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, like December, in Vergennes, Illinois, is another cold winter month, with an average temperature varying between 25.7°F (-3.5°C) and 38.8°F (3.8°C). The coldest temperatures occur during January, when averages reach a peak of 38.8°F (3.8°C) and a low of 25.7°F (-3.5°C). Weather in January »
Weather in February
The last month of the winter, February, is a chilly month in Vergennes, Illinois, with an average temperature varying between 43.7°F (6.5°C) and 29.5°F (-1.4°C). February's advent denotes a minor fluctuation in the average high-temperature to a chilly 43.7°F (6.5°C) from January's 38.8°F (3.8°C). Weather in February »
Weather in March
March, the first month of the spring in Vergennes, is a cool month, with an average temperature varying between 55°F (12.8°C) and 38.7°F (3.7°C). March's arrival brings a change in high-temperatures, moving from a frosty 43.7°F (6.5°C) in February to a cool 55°F (12.8°C). Weather in March »
Weather in April
April is a refreshing spring month in Vergennes, Illinois, with an average temperature varying between 48.4°F (9.1°C) and 66°F (18.9°C). The transition from March to April brings a temperature rise, with average high-temperatures increasing from a cool 55°F (12.8°C) to a comfortable 66°F (18.9°C). Weather in April »
Weather in May
May, the last month of the spring in Vergennes, is a moderately hot month, with an average temperature ranging between min 58.1°F (14.5°C) and max 75.4°F (24.1°C). The start of May signals an increase in the average high-temperature, moving from an enjoyable 66°F (18.9°C) in April to a warm 75.4°F (24.1°C). Weather in May »
Weather in June
The first month of the summer, June, is also a moderately hot month in Vergennes, Illinois, with an average temperature varying between 84.6°F (29.2°C) and 66.6°F (19.2°C). As June arrives, a rise in the average high-temperature is observed, moving from a warm 75.4°F (24.1°C) in May to a still moderately hot 84.6°F (29.2°C). Weather in June »
Weather in July
July is a hot summer month in Vergennes, Illinois, with an average temperature fluctuating between 87.3°F (30.7°C) and 68.7°F (20.4°C). The month of July sees the highest average temperatures, reaching 87.3°F (30.7°C) at the peak and 68.7°F (20.4°C) at the low. In July, the heat index is evaluated at a very hot 102.2°F (39°C). Weather in July »
Weather in August
August, the last month of the summer in Vergennes, is also a moderately hot month, with an average temperature varying between 66°F (18.9°C) and 85.5°F (29.7°C). The shift to August signals an average high-temperature of a warm 85.5°F (29.7°C), subtly varied from July's 87.3°F (30.7°C). Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Vergennes, Illinois, with an average temperature varying between 79.7°F (26.5°C) and 60.1°F (15.6°C). September's arrival comes with a mild decrease in the average high-temperature, moving subtly from a moderately hot 85.5°F (29.7°C) in August to a still warm 79.7°F (26.5°C). Weather in September »
Weather in October
October, like September, in Vergennes, Illinois, is another enjoyable autumn month, with an average temperature fluctuating between 49.3°F (9.6°C) and 67.1°F (19.5°C). October shows a mild decline in the average high-temperature, falling from September's moderately hot 79.7°F (26.5°C) to a refreshing 67.1°F (19.5°C). Weather in October »
Weather in November
The last month of the autumn, November, is also a fresh month in Vergennes, Illinois, with temperature in the range of an average low of 38.3°F (3.5°C) and an average high of 53.6°F (12°C). The commencement of November involves a temperature shift, with the average high-temperature dropping from a comfortable 67.1°F (19.5°C) in October to a fresh 53.6°F (12°C). Weather in November »
Weather in December
The first month of the winter, December, is also a frosty month in Vergennes, Illinois, with an average temperature ranging between min 31.1°F (-0.5°C) and max 43.5°F (6.4°C). As December commences, the average high-temperature shows a reduction, transitioning from a cool 53.6°F (12°C) in November to a chilly 43.5°F (6.4°C). Weather in December »
Updated: Jul 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest month?
Vergennes witnesses the coldest weather in January, with temperatures averaging a high of 38.8°F (3.8°C) and a low of 25.7°F (-3.5°C).
What is the driest month?
January is the month with the least rainfall. Rain falls for 8.4 days and accumulates 1.5" (38mm) of precipitation.
How much does it rain?
Throughout the year, there are 147.6 rainfall days, and 29.17" (741mm) of precipitation is accumulated.
When does it snow?
January through April, November and December are months with snowfall.
How much does it snow?
In Vergennes, during the entire year, snow falls for 18 days and aggregates up to 4.53" (115mm) of snow.
What is the month with the least sunshine?
The month with the least sunshine is January, with an average of 4.6h of sunshine.
When is the lowest UV index?
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.
When does it snow the most?
February is the month with the most snowfall in Vergennes. Snow falls for 5.1 days and accumulates 1.5" (38mm) of snow.
When is Daylight Saving Time (DST)?
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 wettest month?
The month with the most rainfall in Vergennes is April, when the rain falls for 15.1 days and typically aggregates up to 3.58" (91mm) of precipitation.
What is the most humid month?
May is the most humid month, with an average relative humidity of 79%.
When it does not snow?
May through October are months without snowfall.
When are the longest days?
The month with the longest days in Vergennes, Illinois, is June, with an average of 14h and 48min of daylight.
What are the months with the highest UV index?
June through August, with an average maximum UV index of 6, are months with the highest UV index.
What part of the year is the hottest?
Vergennes's temperatures peak on average in July, reaching 87.3°F (30.7°C) at their highest and 68.7°F (20.4°C) at their lowest.
What month has the most sunshine?
July has the most sunshine of the year, with an average of 10.5h of sunshine.
What is the least humid month?
October is the least humid month in Vergennes, with an average relative humidity of 71%.
What is the month with the shortest days?
The month with the shortest days is December, with an average of 9h and 36min of daylight.
Average temperature
Vergennes, IL
The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (38.8°F).
The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).
Average pressure
Vergennes, IL
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.12"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:
30.04"Hg - Average pressure in November:
30.14"Hg - Average pressure in December:
30.14"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed
Vergennes, IL
- Average wind speed in January:
9.6mph - Average wind speed in February:
9.6mph - Average wind speed in March:
9.4mph - Average wind speed in April:
9.3mph - Average wind speed in May:
7.8mph - Average wind speed in June:
6.7mph
- Average wind speed in July:
5.8mph - Average wind speed in August:
5.8mph - Average wind speed in September:
6.3mph - Average wind speed in October:
8mph - Average wind speed in November:
8.7mph - Average wind speed in December:
8.9mph
The windiest months (with the highest average wind speed) are January and February (9.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).
Average humidity
Vergennes, IL
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Vergennes, IL
- Average rainfall in January:
1.5" - Average rainfall in February:
1.54" - Average rainfall in March:
2.56" - Average rainfall in April:
3.58" - Average rainfall in May:
3.27" - Average rainfall in June:
3.31"
- Average rainfall in July:
3.07" - Average rainfall in August:
2.8" - Average rainfall in September:
1.73" - Average rainfall in October:
2.36" - Average rainfall in November:
1.89" - Average rainfall in December:
1.57"
The wettest month (with the highest rainfall) is April (3.58").
The driest month (with the least rainfall) is January (1.5").
Average rainfall days
Vergennes, IL
- Average rainfall days in January:
8.4 days - Average rainfall days in February:
8.3 days - Average rainfall days in March:
14.4 days - Average rainfall days in April:
15.1 days - Average rainfall days in May:
17 days - Average rainfall days in June:
15.1 days
- Average rainfall days in July:
16.3 days - Average rainfall days in August:
14 days - Average rainfall days in September:
11.6 days - Average rainfall days in October:
9.9 days - Average rainfall days in November:
9.3 days - Average rainfall days in December:
8.2 days
The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is December (8.2 days).
Average snowfall
Vergennes, IL
The month with the highest snowfall is February (1.5").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Vergennes, IL
- Average snowfall days in January:
5.4 days - Average snowfall days in February:
5.1 days - Average snowfall days in March:
2.1 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:
1.1 days - Average snowfall days in December:
3.7 days
The month with the highest number of snowfall days is January (5.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Vergennes, IL
- Average daylight in January:
9h and 5min - Average daylight in February:
10h and 5min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 1min - Average daylight in May:
14h and 1min - Average daylight in June:
14h and 5min
- Average daylight in July:
14h and 3min - 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 1min - Average daylight in December:
9h and 4min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in January:
4h and 4min - Average sunshine in February:
4h and 4min - Average sunshine in March:
6h and 2min - Average sunshine in April:
8h and 3min - Average sunshine in May:
9h and 1min - Average sunshine in June:
10h and 2min
- Average sunshine in July:
10h and 3min - Average sunshine in August:
10h and 1min - Average sunshine in September:
9h and 1min - Average sunshine in October:
6h and 2min - Average sunshine in November:
5h and 3min - Average sunshine in December:
4h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days
Vergennes, IL
- Average sunshine days in January:
18.1 days - Average sunshine days in February:
15 days - Average sunshine days in March:
13.8 days - Average sunshine days in April:
12.4 days - Average sunshine days in May:
11.4 days - Average sunshine days in June:
12.1 days
- Average sunshine days in July:
12 days - Average sunshine days in August:
14.7 days - Average sunshine days in September:
16.7 days - Average sunshine days in October:
19.5 days - Average sunshine days in November:
19.5 days - Average sunshine days in December:
19.2 days
The months with the most sunshine days are October and November (19.5 days).
The month with the least sunshine days is May (11.4 days).
Average UV index
Vergennes, IL
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
Vergennes, IL
The months with the most cloud cover are January and February (Cloud cover 50).
The month with the least cloud cover is June (Cloud cover 28).
Average visibility
Vergennes, IL
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Vergennes, Illinois, USA
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