Climate and monthly weather forecast
Pontoosuc, IL

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Weather in January

January, like December, is a freezing cold winter month in Pontoosuc, Illinois, with temperature in the range of an average high of 30.4°F (-0.9°C) and an average low of 18.5°F (-7.5°C). Pontoosuc experiences its lowest average temperatures in January, reaching a peak of 30.4°F (-0.9°C) and a minimum of 18.5°F (-7.5°C). Weather in January »

Weather in February

The last month of the winter, February, is a cold month in Pontoosuc, Illinois, with temperature in the range of an average low of 22.1°F (-5.5°C) and an average high of 35.4°F (1.9°C). Pontoosuc, Illinois, marks the onset of February with an average high-temperature of an icy 35.4°F (1.9°C), a subtle shift from January's 30.4°F (-0.9°C). Weather in February »

Weather in March

March, the first month of the spring in Pontoosuc, is a frosty month, with an average temperature fluctuating between 49.5°F (9.7°C) and 34.2°F (1.2°C). March brings an increase in the average high-temperature, progressing from a wintry 35.4°F (1.9°C) in February to a frosty 49.5°F (9.7°C). Weather in March »

Weather in April

April is an enjoyable spring month in Pontoosuc, Illinois, with an average temperature fluctuating between 61.2°F (16.2°C) and 44.2°F (6.8°C). As March transitions into April, Pontoosuc sees a rise in the average high-temperature, moving from a frosty 49.5°F (9.7°C) to a refreshing 61.2°F (16.2°C). Weather in April »

Weather in May

The last month of the spring, May, is an agreeable month in Pontoosuc, Illinois, with an average temperature fluctuating between 71.1°F (21.7°C) and 54.3°F (12.4°C). The arrival of May brings an increase in high-temperatures, moving from a refreshing 61.2°F (16.2°C) in April to an agreeable 71.1°F (21.7°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in Pontoosuc, Illinois, with an average temperature varying between 63.7°F (17.6°C) and 80.2°F (26.8°C). The arrival of June signals an increase in the average high-temperature, moving from a pleasant 71.1°F (21.7°C) in May to a moderately hot 80.2°F (26.8°C). Weather in June »

Weather in July

July, the same as June, is another warm summer month in Pontoosuc, Illinois, with an average temperature varying between 66.2°F (19°C) and 82.9°F (28.3°C). July is the warmest month, with the temperature often reaching an average high of 82.9°F (28.3°C) and an average low of 66.2°F (19°C). July's heat index is computed to be a hot 91.4°F (33°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Pontoosuc, Illinois, with temperature in the range of an average low of 63.9°F (17.7°C) and an average high of 82.2°F (27.9°C). Pontoosuc records a slight change with August's average high-temperatures adjusting to a still warm 82.2°F (27.9°C) from July's 82.9°F (28.3°C). Weather in August »

Weather in September

September, the first month of the autumn in Pontoosuc, is also a moderately hot month, with an average temperature varying between 57.4°F (14.1°C) and 77°F (25°C). September's arrival registers an average high-temperature of a still warm 77°F (25°C), closely aligning with the temperature of the previous month. Weather in September »

Weather in October

October, the same as September, is another comfortable autumn month in Pontoosuc, Illinois, with an average temperature ranging between min 46°F (7.8°C) and max 62.6°F (17°C). Pontoosuc's weather undergoes a significant change with the arrival of October, as the average high-temperature drops from a moderately hot 77°F (25°C) in September to a comfortable 62.6°F (17°C). Weather in October »

Weather in November

November, the last month of the autumn in Pontoosuc, is another chilly month, with an average temperature fluctuating between 34.7°F (1.5°C) and 48.7°F (9.3°C). In Pontoosuc, the average high-temperature in November decreases from a refreshing 62.6°F (17°C) in October to a frosty 48.7°F (9.3°C). Weather in November »

Weather in December

December, the first month of the winter in Pontoosuc, is also a wintry month, with an average temperature fluctuating between 36.5°F (2.5°C) and 25.2°F (-3.8°C). The arrival of December corresponds with a temperature reduction, down from November's chilly 48.7°F (9.3°C) to a cold 36.5°F (2.5°C). Weather in December »
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Frequently asked questions

What are the coldest months in Pontoosuc?

Temperature readings in Pontoosuc, Illinois, reach their annual highs in January, averaging 30.4°F (-0.9°C) and a minimum average of 18.5°F (-7.5°C).

What is the driest month in Pontoosuc?

The months with the least rainfall in Pontoosuc are January and December Rain falls for 3.7 days and accumulates 0.47" (12mm) of rain.

How much does it rain in Pontoosuc?

Throughout the year, in Pontoosuc, Illinois, there are 101.8 rainfall days, and 9.92" (252mm) of precipitation is accumulated.

When does it snow in Pontoosuc?

January through April, October through December are months with snowfall.

When does it snow the most in Pontoosuc?

January is the month with the most snowfall in Pontoosuc, Illinois. Snow falls for 7.7 days and accumulates 1.1" (28mm) of snow.

How much does it snow in Pontoosuc?

In Pontoosuc, Illinois, during the entire year, snow falls for 24.5 days and aggregates up to 4.25" (108mm) of snow.

What is the month with the least sunshine in Pontoosuc?

January has the least sunshine of the year in Pontoosuc, with an average of 4.3h of sunshine.

What are the months with the lowest UV index in Pontoosuc?

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

When is Daylight Saving Time (DST) in Pontoosuc?

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

May is the month with the most rainfall in Pontoosuc, Illinois. Rain falls for 14.4 days and accumulates 1.46" (37mm) of precipitation.

When it does not snow in Pontoosuc?

May through September are months without snowfall in Pontoosuc.

When are the longest days in Pontoosuc?

June has the longest days of the year, with an average of 15h and 0min of daylight.

When is the highest UV index in Pontoosuc?

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

What is the hottest time of year in Pontoosuc?

Pontoosuc's July weather reaches an average high of 82.9°F (28.3°C) and an average low of 66.2°F (19°C), making it the warmest month.

What is the most humid month in Pontoosuc?

The most humid month in Pontoosuc, Illinois, is July, with an average relative humidity of 82%.

What month has the most sunshine in Pontoosuc?

July has the most sunshine of the year in Pontoosuc, Illinois, with an average of 10.4h of sunshine.

What is the least humid month in Pontoosuc?

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

What is the month with the shortest days in Pontoosuc?

With an average of 9h and 18min of daylight, December has the shortest days of the year in Pontoosuc.

Average temperature
Pontoosuc, IL

Average temperature - Pontoosuc, IL

The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (30.4°F).

The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).

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Average pressure
Pontoosuc, IL

Average pressure - Pontoosuc, IL

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

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Average wind speed
Pontoosuc, IL

Average wind speed - Pontoosuc, IL

The windiest months (with the highest average wind speed) are January, February, March and April (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.7mph).

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Average rainfall
Pontoosuc, IL

Average rainfall - Pontoosuc, IL

The wettest month (with the highest rainfall) is May (1.46").
The driest months (with the least rainfall) are January and December (0.47").

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Average rainfall days
Pontoosuc, IL

Average rainfall days - Pontoosuc, IL

The month with the highest number of rainy days is May (14.4 days).
The month with the least rainy days is February (3.5 days).

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Average snowfall
Pontoosuc, IL

Average snowfall - Pontoosuc, IL

The month with the highest snowfall is January (1.1").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days
Pontoosuc, IL

Average snowfall days - Pontoosuc, IL

The month with the highest number of snowfall days is January (7.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight / Average sunshine
Pontoosuc, IL

Average daylight / Average sunshine - Pontoosuc, IL

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).

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).

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Average sunshine days
Pontoosuc, IL

Average sunshine days - Pontoosuc, IL

The month with the most sunshine days is December (22.9 days).
The month with the least sunshine days is May (14 days).

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Average UV index
Pontoosuc, IL

Average UV index - Pontoosuc, 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).

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Average visibility
Pontoosuc, IL

Average visibility - Pontoosuc, 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).

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Pontoosuc, Illinois, USA

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