Climate and monthly weather forecast
Vergennes, IL

englishespañol中文
Share

Weather in January

January, like December, in Vergennes, Illinois, is a wintry winter month, with an average temperature varying between 38.8°F (3.8°C) and 25.7°F (-3.5°C). The coldest period is January, when temperatures fluctuate between an average high of 38.8°F (3.8°C) and a low of 25.7°F (-3.5°C). Weather in January »

Weather in February

February, the last month of the winter in Vergennes, is a frosty month, with an average temperature varying between 29.5°F (-1.4°C) and 43.7°F (6.5°C). In Vergennes, February's average high-temperature stands at a chilly 43.7°F (6.5°C), closely related to the preceding month. Weather in February »

Weather in March

March, the first month of the spring in Vergennes, is a cool month, with temperature in the range of an average high of 55°F (12.8°C) and an average low of 38.7°F (3.7°C). Vergennes, Illinois, in March shows a temperature shift, moving from an average high of a frosty 43.7°F (6.5°C) in February to a fresh 55°F (12.8°C). Weather in March »

Weather in April

April is an enjoyable spring month in Vergennes, Illinois, with an average temperature ranging between min 48.4°F (9.1°C) and max 66°F (18.9°C). The shift from March to April is marked by an increase in the average high-temperature, moving from a fresh 55°F (12.8°C) to an enjoyable 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 fluctuating between 75.4°F (24.1°C) and 58.1°F (14.5°C). With the arrival of May, the average high-temperature transitions from a refreshing 66°F (18.9°C) in April to a warm 75.4°F (24.1°C). Weather in May »

Weather in June

June, the first month of the summer in Vergennes, is also a moderately hot month, with an average temperature fluctuating between 84.6°F (29.2°C) and 66.6°F (19.2°C). With the transition into June, Vergennes experiences an increase in average high-temperatures, moving up from 75.4°F (24.1°C) in May to a still warm 84.6°F (29.2°C). Weather in June »

Weather in July

July in Vergennes, Illinois, is a tropical summer month, with an average temperature varying between 68.7°F (20.4°C) and 87.3°F (30.7°C). July is the warmest month, exhibiting average temperatures of 87.3°F (30.7°C) at the peak and 68.7°F (20.4°C) at the base. July's mean heat index is calculated to be a very hot 102.2°F (39°C). Weather in July »

Weather in August

August, the last month of the summer in Vergennes, is another warm month, with temperature in the range of an average low of 66°F (18.9°C) and an average high of 85.5°F (29.7°C). The arrival of August is marked by an average high-temperature of a moderately hot 85.5°F (29.7°C), bearing a close resemblance to July. Weather in August »

Weather in September

September, the first month of the autumn in Vergennes, is still a warm month, with an average temperature fluctuating between 79.7°F (26.5°C) and 60.1°F (15.6°C). The average high-temperature shows a slight dip in September, from August's 85.5°F (29.7°C) 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 temperature in the range of an average low of 49.3°F (9.6°C) and an average high of 67.1°F (19.5°C). With October's onset, the weather shows a temperature decrease, transitioning from a warm 79.7°F (26.5°C) in September to a comfortable 67.1°F (19.5°C). Weather in October »

Weather in November

November, the last month of the autumn in Vergennes, is also a fresh month, with an average temperature varying between 53.6°F (12°C) and 38.3°F (3.5°C). With the onset of November, Vergennes experiences a modest temperature adjustment, with the average high-temperature receding from an enjoyable 67.1°F (19.5°C) in October to a cool 53.6°F (12°C). Weather in November »

Weather in December

December, the first month of the winter in Vergennes, is also a frosty month, with temperature in the range of an average low of 31.1°F (-0.5°C) and an average high of 43.5°F (6.4°C). December ushers in a slight temperature change, with average high-temperatures reducing from November's cool 53.6°F (12°C) to a chilly 43.5°F (6.4°C). Weather in December »
[Resources]

Frequently asked questions

What is the coldest time of year in Vergennes?

Temperature readings in Vergennes reach their annual highs in January, averaging 38.8°F (3.8°C) and a minimum average of 25.7°F (-3.5°C).

What is the driest month in Vergennes?

January is the month with the least rainfall in Vergennes, Illinois. Rain falls for 8.4 days and accumulates 1.5" (38mm) of precipitation.

How many days does it rain in Vergennes?

In Vergennes, Illinois, during the entire year, the rain falls for 147.6 days and collects up to 29.17" (741mm) of precipitation.

When does it snow in Vergennes?

January through April, November and December are months with snowfall in Vergennes.

How much does it snow in Vergennes?

Throughout the year, in Vergennes, Illinois, there are 18 snowfall days, and 4.53" (115mm) of snow is accumulated.

What is the month with the least sunshine in Vergennes?

January has the least sunshine of the year, with an average of 4.6h of sunshine.

When is the lowest UV index in Vergennes?

The months with the lowest UV index in Vergennes are January, February, November and December, with an average maximum UV index of 2.

When does it snow the most in Vergennes?

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) in Vergennes?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Vergennes, 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 Vergennes?

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 in Vergennes?

May is the most humid month in Vergennes, Illinois, with an average relative humidity of 79%.

When it does not snow in Vergennes?

In Vergennes, snow does not fall in May through October.

When are the longest days in Vergennes?

June has the longest days of the year in Vergennes, with an average of 14h and 48min of daylight.

What is the month with the highest UV index in Vergennes?

The months with the highest UV index in Vergennes, Illinois, are June through August, with an average maximum UV index of 6.

What month is the hottest in Vergennes?

July is Vergennes's warmest month, registering average high temperatures of 87.3°F (30.7°C) and lows of 68.7°F (20.4°C).

What month has the most sunshine in Vergennes?

The month with the most sunshine in Vergennes, Illinois, is July, with an average of 10.5h of sunshine.

What is the least humid month in Vergennes?

October is the least humid month in Vergennes, with an average relative humidity of 71%.

What is the month with the shortest days in Vergennes?

December has the shortest days of the year in Vergennes, Illinois, with an average of 9h and 36min of daylight.

Average temperature
Vergennes, IL

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).

[Resources]

Average pressure
Vergennes, IL

Average pressure - Vergennes, IL

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

[Resources]

Average wind speed
Vergennes, IL

Average wind speed - Vergennes, IL

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).

[Resources]

Average rainfall
Vergennes, IL

Average rainfall - Vergennes, IL

The wettest month (with the highest rainfall) is April (3.58").
The driest month (with the least rainfall) is January (1.5").

[Resources]

Average rainfall days
Vergennes, IL

Average rainfall days - Vergennes, IL

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).

[Resources]

Average snowfall
Vergennes, IL

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").

[Resources]

Average snowfall days
Vergennes, IL

Average snowfall days - Vergennes, IL

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).

[Resources]

Average daylight / Average sunshine
Vergennes, IL

Average daylight / Average sunshine - Vergennes, IL

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).

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).

[Resources]

Average sunshine days
Vergennes, IL

Average sunshine days - Vergennes, IL

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).

[Resources]

Average UV index
Vergennes, IL

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).

[Resources]

Average visibility
Vergennes, IL

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).

[Resources]

Vergennes, Illinois, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location