Climate and monthly weather forecast
Smithton, IL

Weather in January

January, the same as December, is a wintry winter month in Smithton, Illinois, with an average temperature ranging between min 25°F (-3.9°C) and max 38.1°F (3.4°C). January is the coldest month, with an average high-temperature of 38.1°F (3.4°C) and an average low-temperature of 25°F (-3.9°C). Weather in January »

Weather in February

The last month of the winter, February, is another cold month in Smithton, Illinois, with an average temperature fluctuating between 42.4°F (5.8°C) and 27.9°F (-2.3°C). In Smithton, the average high-temperature in February is practically the same as in January - a still wintry 42.4°F (5.8°C). Weather in February »

Weather in March

March, the first month of the spring in Smithton, is a cool month, with temperature in the range of an average high of 54.5°F (12.5°C) and an average low of 37.9°F (3.3°C). In March, the average high-temperature increases from a wintry 42.4°F (5.8°C) in February to a cool 54.5°F (12.5°C). Weather in March »

Weather in April

April is an enjoyable spring month in Smithton, Illinois, with an average temperature varying between 65.5°F (18.6°C) and 47.8°F (8.8°C). In April, the average high-temperature increases from a cool 54.5°F (12.5°C) in March to a comfortable 65.5°F (18.6°C). Weather in April »

Weather in May

The last month of the spring, May, is a moderately hot month in Smithton, Illinois, with temperature in the range of an average high of 75°F (23.9°C) and an average low of 57.9°F (14.4°C). In May, the average high-temperature rises from a comfortable 65.5°F (18.6°C) in April to a moderately hot 75°F (23.9°C). Weather in May »

Weather in June

June, the first month of the summer in Smithton, is also a moderately hot month, with an average temperature fluctuating between 83.7°F (28.7°C) and 66.6°F (19.2°C). In June, the average high-temperature marginally rises from a warm 75°F (23.9°C) in May to a still moderately hot 83.7°F (28.7°C). Weather in June »

Weather in July

July is a hot summer month in Smithton, Illinois, with an average temperature fluctuating between 68.5°F (20.3°C) and 86.5°F (30.3°C). With an average high-temperature of 86.5°F (30.3°C) and an average low-temperature of 68.5°F (20.3°C), July is the warmest month. The average heat index in July is calculated to be a torrid 100.4°F (38°C). Weather in July »

Weather in August

August, the last month of the summer in Smithton, is also a moderately hot month, with an average temperature ranging between max 84.6°F (29.2°C) and min 65.8°F (18.8°C). In Smithton, the average high-temperature in August is practically the same as in July - a warm 84.6°F (29.2°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a warm month in Smithton, Illinois, with an average temperature varying between 79.3°F (26.3°C) and 60.1°F (15.6°C). In September, the average high-temperature is relatively the same as in August - a still warm 79.3°F (26.3°C). Weather in September »

Weather in October

October, like September, in Smithton, Illinois, is another comfortable autumn month, with an average temperature varying between 49.1°F (9.5°C) and 66.7°F (19.3°C). In October, the average high-temperature decreases from a moderately hot 79.3°F (26.3°C) in September to an enjoyable 66.7°F (19.3°C). Weather in October »

Weather in November

November, the last month of the autumn in Smithton, is also a fresh month, with temperature in the range of an average high of 53.4°F (11.9°C) and an average low of 37.9°F (3.3°C). In November, the average high-temperature drops from a comfortable 66.7°F (19.3°C) in October to a cool 53.4°F (11.9°C). Weather in November »

Weather in December

The first month of the winter, December, is also a frosty month in Smithton, Illinois, with an average temperature varying between 30.7°F (-0.7°C) and 43°F (6.1°C). In Smithton, the average high-temperature in December drops from a cool 53.4°F (11.9°C) in November to a chilly 43°F (6.1°C). Weather in December »
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FAQ

What is the coldest month in Smithton?

The coldest month in Smithton, Illinois, is January, with an average high-temperature of 38.1°F (3.4°C) and an average low-temperature of 25°F (-3.9°C).

How many days does it rain in Smithton?

Throughout the year, there are 103.8 rainfall days, and 10.24" (260mm) of precipitation is accumulated.

When does it snow in Smithton?

Months with snowfall in Smithton, Illinois, are January through March, November and December.

When does it snow the most in Smithton?

January is the month with the most snowfall. Snow falls for 4.3 days and accumulates 0.63" (16mm) of snow.

How many days does it snow in Smithton?

Throughout the year, there are 12.9 snowfall days, and 1.77" (45mm) of snow is accumulated.

What is the month with the least sunshine in Smithton?

With an average of 4.6h of sunshine, January has the least sunshine of the year in Smithton, Illinois.

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

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

When is Daylight Saving Time (DST) in Smithton?

On Sunday, March 13. 2022, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 6. 2022, at 2:00 am, and the time zone reverts from CDT to CST.

When it does not snow in Smithton?

April through October are months without snowfall in Smithton, Illinois.

What are the most humid months in Smithton?

May and July, with an average relative humidity of 79%, are most humid months.

What is the rainiest month in Smithton?

The month with the most rainfall in Smithton, Illinois, is May, when the rain falls for 12.1 days and typically aggregates up to 1.34" (34mm) of precipitation.

What are the months with the highest UV index in Smithton?

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

When are the longest days in Smithton?

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

What are the months with the most sunshine in Smithton?

The months with the most sunshine are June and July, with an average of 10.4h of sunshine.

What is the warmest month in Smithton?

July is the warmest month in Smithton, Illinois, with an average high-temperature of 86.5°F (30.3°C) and an average low-temperature of 68.5°F (20.3°C).

What is the driest month in Smithton?

The month with the least rainfall in Smithton, Illinois, is September, when the rain falls for 8.1 days and typically collects 0.47" (12mm) of precipitation.

What is the least humid month in Smithton?

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

What is the month with the shortest days in Smithton?

December has the shortest days of the year in Smithton, with an average of 9h and 32min of daylight.

Average temperature
Smithton, IL

Average temperature - Smithton, IL

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (38.1°F).

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (25°F).

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Average pressure
Smithton, IL

Average pressure - Smithton, 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).

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Average wind speed
Smithton, IL

Average wind speed - Smithton, IL

The windiest month (with the highest average wind speed) is January (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (5.6mph).

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Average humidity
Smithton, IL

Average humidity - Smithton, IL

The months with the highest relative humidity are May and July (79%).
The month with the lowest relative humidity is October (71%).

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Average rainfall
Smithton, IL

Average rainfall - Smithton, IL

The wettest month (with the highest rainfall) is May (1.34").
The driest month (with the least rainfall) is September (0.47").

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Average rainfall days
Smithton, IL

Average rainfall days - Smithton, IL

The month with the highest number of rainy days is July (12.2 days).
The month with the least rainy days is December (5.3 days).

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Average snowfall
Smithton, IL

Average snowfall - Smithton, IL

The month with the highest snowfall is January (0.63").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days
Smithton, IL

Average snowfall days - Smithton, IL

The month with the highest number of snowfall days is January (4.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight / Average sunshine
Smithton, IL

Average daylight / Average sunshine - Smithton, 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 32min).

The months with the most sunshine are June and July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).

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Average sunshine days
Smithton, IL

Average sunshine days - Smithton, IL

The month with the most sunshine days is January (23.3 days).
The month with the least sunshine days is July (15.1 days).

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Average UV index
Smithton, IL

Average UV index - Smithton, IL

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).

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Average visibility
Smithton, IL

Average visibility - Smithton, 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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