Climate and monthly weather forecast
Chapin, IL

Weather in January

January, the same as December, is a wintry winter month in Chapin, Illinois, with an average temperature varying between 21°F (-6.1°C) and 33.4°F (0.8°C). The coldest month is January, with an average high-temperature of 33.4°F (0.8°C) and an average low-temperature of 21°F (-6.1°C). Weather in January »

Weather in February

The last month of the winter, February, is another cold month in Chapin, Illinois, with an average temperature varying between 24.6°F (-4.1°C) and 38.3°F (3.5°C). In Chapin, the average high-temperature in February is practically the same as in January - a still wintry 38.3°F (3.5°C). Weather in February »

Weather in March

March, the first month of the spring in Chapin, is a fresh month, with an average temperature fluctuating between 51.4°F (10.8°C) and 36.1°F (2.3°C). In Chapin, the average high-temperature in March rises from a wintry 38.3°F (3.5°C) in February to a fresh 51.4°F (10.8°C). Weather in March »

Weather in April

April in Chapin, Illinois, is an enjoyable spring month, with an average temperature varying between 63.3°F (17.4°C) and 46.2°F (7.9°C). In Chapin, the average high-temperature in April increases from a cool 51.4°F (10.8°C) in March to a comfortable 63.3°F (17.4°C). Weather in April »

Weather in May

May, the last month of the spring in Chapin, is an agreeable month, with temperature in the range of an average low of 55.9°F (13.3°C) and an average high of 72.9°F (22.7°C). In Chapin, the average high-temperature in May increases from a comfortable 63.3°F (17.4°C) in April to a pleasant 72.9°F (22.7°C). Weather in May »

Weather in June

June, the first month of the summer in Chapin, is a warm month, with an average temperature fluctuating between 81.5°F (27.5°C) and 64.6°F (18.1°C). In June, the average high-temperature marginally rises from a pleasant 72.9°F (22.7°C) in May to a warm 81.5°F (27.5°C). Weather in June »

Weather in July

July, the same as June, is a moderately hot summer month in Chapin, Illinois, with an average temperature fluctuating between 66.7°F (19.3°C) and 83.3°F (28.5°C). July is the warmest month, with an average high-temperature of 83.3°F (28.5°C) and an average low-temperature of 66.7°F (19.3°C). The average heat index in July is appraised at a hot 93.2°F (34°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Chapin, Illinois, with an average temperature fluctuating between 64.8°F (18.2°C) and 82.6°F (28.1°C). In Chapin, Illinois, the average high-temperature in August is relatively the same as in July - a still moderately hot 82.6°F (28.1°C). Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Chapin, Illinois, with temperature in the range of an average low of 58.6°F (14.8°C) and an average high of 77.7°F (25.4°C). In Chapin, the average high-temperature in September is essentially the same as in August - a still warm 77.7°F (25.4°C). Weather in September »

Weather in October

October, the same as September, is another enjoyable autumn month in Chapin, Illinois, with an average temperature ranging between max 64°F (17.8°C) and min 47.5°F (8.6°C). In Chapin, the average high-temperature in October decreases from a warm 77.7°F (25.4°C) in September to an enjoyable 64°F (17.8°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a fresh month in Chapin, Illinois, with an average temperature varying between 36°F (2.2°C) and 50.5°F (10.3°C). In November, the average high-temperature drops from an enjoyable 64°F (17.8°C) in October to a cool 50.5°F (10.3°C). Weather in November »

Weather in December

The first month of the winter, December, is also a wintry month in Chapin, Illinois, with an average temperature fluctuating between 27.7°F (-2.4°C) and 39°F (3.9°C). In Chapin, the average high-temperature in December decreases from a fresh 50.5°F (10.3°C) in November to a cold 39°F (3.9°C). Weather in December »
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FAQ

What is the coldest month in Chapin?

The coldest month is January, with an average high-temperature of 33.4°F (0.8°C) and an average low-temperature of 21°F (-6.1°C).

How many days does it rain in Chapin?

Throughout the year, there are 148.2 rainfall days, and 29.37" (746mm) of precipitation is accumulated.

When does it snow in Chapin?

January through April, October through December are months with snowfall in Chapin, Illinois.

When does it snow the most in Chapin?

January is the month with the most snowfall in Chapin, Illinois. Snow falls for 9.6 days and accumulates 3.58" (91mm) of snow.

How many days does it snow in Chapin?

In Chapin, during the entire year, snow falls for 28.3 days and aggregates up to 9.76" (248mm) of snow.

What is the month with the least sunshine in Chapin?

With an average of 4.3h of sunshine, January has the least sunshine of the year.

When is the lowest UV index in Chapin?

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 Chapin?

On Sunday, March 12. 2023, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 5. 2023, at 2:00 am, and the time zone reverts from CDT to CST.

When it does not snow in Chapin?

In Chapin, snow does not fall in May through September.

What is the wettest month in Chapin?

The month with the most rainfall in Chapin is June, when the rain falls for 15.8 days and typically aggregates up to 3.58" (91mm) of precipitation.

When are the longest days in Chapin?

The month with the longest days is June, with an average of 14h and 56min of daylight.

What month has the most sunshine in Chapin?

With an average of 10.3h of sunshine, June has the most sunshine of the year.

When is the highest UV index in Chapin?

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

What is the warmest month in Chapin?

The warmest month is July, with an average high-temperature of 83.3°F (28.5°C) and an average low-temperature of 66.7°F (19.3°C).

What is the most humid month in Chapin?

July is the most humid month, with an average relative humidity of 83%.

What is the least humid month in Chapin?

The least humid month in Chapin, Illinois, is October, with an average relative humidity of 71%.

What is the driest month in Chapin?

December is the month with the least rainfall in Chapin, Illinois. Rain falls for 8.1 days and accumulates 1.54" (39mm) of precipitation.

What is the month with the shortest days in Chapin?

December has the shortest days of the year in Chapin, with an average of 9h and 25min of daylight.

Average pressure
Chapin, IL

Average pressure - Chapin, IL

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed
Chapin, IL

Average wind speed - Chapin, IL

The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is July (6.1mph).

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Average rainfall
Chapin, IL

Average rainfall - Chapin, IL

The wettest month (with the highest rainfall) is June (3.58").
The driest month (with the least rainfall) is December (1.54").

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Average rainfall days
Chapin, IL

Average rainfall days - Chapin, IL

The month with the highest number of rainy days is May (18 days).
The months with the least rainy days are January and February (7.1 days).

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Average snowfall
Chapin, IL

Average snowfall - Chapin, IL

The month with the highest snowfall is January (3.58").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days
Chapin, IL

Average snowfall days - Chapin, IL

The month with the highest number of snowfall days is January (9.6 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
Chapin, IL

Average daylight / Average sunshine - Chapin, IL

The month with the longest days is June (Average daylight: 14h and 56min).
The month with the shortest days is December (Average daylight: 9h and 25min).

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 18min).

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Average sunshine days
Chapin, IL

Average sunshine days - Chapin, IL

The month with the most sunshine days is December (18.5 days).
The month with the least sunshine days is June (10.5 days).

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Average UV index
Chapin, IL

Average UV index - Chapin, 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
Chapin, IL

Average visibility - Chapin, 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).

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