Climate and monthly weather forecast
Seaton, IL

Weather in January

January, the same as December, in Seaton, Illinois, is another subzero cold winter month, with temperature in the range of an average low of 16.9°F (-8.4°C) and an average high of 28.8°F (-1.8°C). With an average high-temperature of 28.8°F (-1.8°C) and an average low-temperature of 16.9°F (-8.4°C), January is the coldest month. Weather in January »

Weather in February

February, the last month of the winter in Seaton, is a wintry month, with an average temperature varying between 33.6°F (0.9°C) and 20.7°F (-6.3°C). In Seaton, the average high-temperature in February is essentially the same as in January - a wintry 33.6°F (0.9°C). Weather in February »

Weather in March

The first month of the spring, March, is a frosty month in Seaton, Illinois, with an average temperature fluctuating between 32.5°F (0.3°C) and 47.7°F (8.7°C). In March, the average high-temperature rises from a cold 33.6°F (0.9°C) in February to a chilly 47.7°F (8.7°C). Weather in March »

Weather in April

April in Seaton, Illinois, is a mild spring month, with an average temperature fluctuating between 42.8°F (6°C) and 59.5°F (15.3°C). In April, the average high-temperature increases from a chilly 47.7°F (8.7°C) in March to a mild 59.5°F (15.3°C). Weather in April »

Weather in May

May, the last month of the spring in Seaton, is a pleasant month, with temperature in the range of an average low of 53.8°F (12.1°C) and an average high of 70.7°F (21.5°C). In May, the average high-temperature increases from a mild 59.5°F (15.3°C) in April to an agreeable 70.7°F (21.5°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in Seaton, Illinois, with an average temperature fluctuating between 79.2°F (26.2°C) and 62.2°F (16.8°C). In June, the average high-temperature slightly increases from an agreeable 70.7°F (21.5°C) in May to a warm 79.2°F (26.2°C). Weather in June »

Weather in July

July, the same as June, is another warm summer month in Seaton, Illinois, with an average temperature varying between 64.9°F (18.3°C) and 81.5°F (27.5°C). July is the warmest month, with an average high-temperature of 81.5°F (27.5°C) and an average low-temperature of 64.9°F (18.3°C). The average heat index in July is evaluated at a hot 87.8°F (31°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Seaton, Illinois, with an average temperature varying between 81°F (27.2°C) and 63.1°F (17.3°C). In Seaton, the average high-temperature in August is almost the same as in July - a still moderately hot 81°F (27.2°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a warm month in Seaton, Illinois, with an average temperature varying between 75.4°F (24.1°C) and 56.3°F (13.5°C). In Seaton, the average high-temperature in September marginally drops from 81°F (27.2°C) in August to a still moderately hot 75.4°F (24.1°C). Weather in September »

Weather in October

October, like September, in Seaton, Illinois, is another enjoyable autumn month, with an average temperature ranging between min 45.5°F (7.5°C) and max 61.7°F (16.5°C). In October, the average high-temperature decreases from a moderately hot 75.4°F (24.1°C) in September to a comfortable 61.7°F (16.5°C). Weather in October »

Weather in November

The last month of the autumn, November, is another chilly month in Seaton, Illinois, with temperature in the range of an average low of 33.8°F (1°C) and an average high of 47.3°F (8.5°C). In Seaton, the average high-temperature in November declines considerably from an enjoyable 61.7°F (16.5°C) in October to a frosty 47.3°F (8.5°C). Weather in November »

Weather in December

The first month of the winter, December, is also a wintry month in Seaton, Illinois, with an average temperature varying between 35.1°F (1.7°C) and 24.4°F (-4.2°C). In December, the average high-temperature decreases from a frosty 47.3°F (8.5°C) in November to a wintry 35.1°F (1.7°C). Weather in December »
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FAQ

What is the coldest month in Seaton?

With an average high-temperature of 28.8°F (-1.8°C) and an average low-temperature of 16.9°F (-8.4°C), January is the coldest month in Seaton, Illinois.

How much does it rain in Seaton?

In Seaton, Illinois, during the entire year, the rain falls for 121.3 days and collects up to 17.72" (450mm) of precipitation.

When does it snow in Seaton?

Months with snowfall in Seaton, Illinois, are January through April, October through December.

When does it snow the most in Seaton?

The month with the most snowfall in Seaton is January, when snow falls for 7.8 days and typically aggregates up to 2.4" (61mm) of snow.

How much does it snow in Seaton?

In Seaton, during the entire year, snow falls for 26.3 days and aggregates up to 7.64" (194mm) of snow.

What is the month with the least sunshine in Seaton?

January has the least sunshine of the year, with an average of 4.2h of sunshine.

What is the month with the lowest UV index in Seaton?

The month with the lowest UV index in Seaton, Illinois, is January, with an average maximum UV index of 1.

When is Daylight Saving Time (DST) in Seaton?

On Sunday, March 13. 2022, at 2:00 am, Daylight Saving Time starts in Seaton, Illinois, 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.

What is the wettest month in Seaton?

May is the month with the most rainfall in Seaton. Rain falls for 16.8 days and accumulates 2.76" (70mm) of precipitation.

When it does not snow in Seaton?

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

When are the longest days in Seaton?

June has the longest days of the year, with an average of 15h and 5min of daylight.

When is the highest UV index in Seaton?

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

What is the warmest month in Seaton?

With an average high-temperature of 81.5°F (27.5°C) and an average low-temperature of 64.9°F (18.3°C), July is the warmest month in Seaton, Illinois.

What is the most humid month in Seaton?

With an average relative humidity of 84%, July is the most humid month in Seaton, Illinois.

What month has the most sunshine in Seaton?

July has the most sunshine of the year, with an average of 10.3h of sunshine.

What is the least humid month in Seaton?

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

What is the driest month in Seaton?

The month with the least rainfall in Seaton, Illinois, is December, when the rain falls for 5.5 days and typically collects 0.67" (17mm) of precipitation.

What is the month with the shortest days in Seaton?

December has the shortest days of the year in Seaton, Illinois, with an average of 9h and 16min of daylight.

Average temperature
Seaton, IL

Average temperature - Seaton, IL

The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (28.8°F).

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (16.9°F).

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Average pressure
Seaton, IL

Average pressure - Seaton, IL

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

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Average wind speed
Seaton, IL

Average wind speed - Seaton, IL

The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).

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Average rainfall
Seaton, IL

Average rainfall - Seaton, IL

The wettest month (with the highest rainfall) is May (2.76").
The driest month (with the least rainfall) is December (0.67").

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Average rainfall days
Seaton, IL

Average rainfall days - Seaton, IL

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (4.1 days).

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Average snowfall
Seaton, IL

Average snowfall - Seaton, IL

The month with the highest snowfall is January (2.4").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days
Seaton, IL

Average snowfall days - Seaton, IL

The month with the highest number of snowfall days is January (7.8 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
Seaton, IL

Average daylight / Average sunshine - Seaton, IL

The month with the longest days is June (Average daylight: 15h and 5min).
The month with the shortest days is December (Average daylight: 9h and 16min).

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

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Average sunshine days
Seaton, IL

Average sunshine days - Seaton, IL

The month with the most sunshine days is January (20.3 days).
The month with the least sunshine days is May (12.1 days).

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Average visibility
Seaton, IL

Average visibility - Seaton, IL

The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).

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