Climate and monthly weather forecast
Serena, IL

Weather in January

January, the same as December, in Serena, Illinois, is another subzero cold winter month, with temperature in the range of an average low of 17.1°F (-8.3°C) and an average high of 28.8°F (-1.8°C). The coldest month is January, with an average high-temperature of 28.8°F (-1.8°C) and an average low-temperature of 17.1°F (-8.3°C). Weather in January »

Weather in February

February, the last month of the winter in Serena, is a cold month, with an average temperature ranging between max 33.1°F (0.6°C) and min 19.9°F (-6.7°C). In February, the average high-temperature is essentially the same as in January - a wintry 33.1°F (0.6°C). Weather in February »

Weather in March

March, the first month of the spring in Serena, is a frosty month, with temperature in the range of an average low of 32°F (0°C) and an average high of 46.4°F (8°C). In Serena, the average high-temperature in March increases from a cold 33.1°F (0.6°C) in February to a frosty 46.4°F (8°C). Weather in March »

Weather in April

April is a mild spring month in Serena, Illinois, with an average temperature ranging between min 41.7°F (5.4°C) and max 58.5°F (14.7°C). In Serena, Illinois, the average high-temperature in April rises from a frosty 46.4°F (8°C) in March to a moderate 58.5°F (14.7°C). Weather in April »

Weather in May

The last month of the spring, May, is an agreeable month in Serena, Illinois, with an average temperature varying between 70.3°F (21.3°C) and 53.1°F (11.7°C). In May, the average high-temperature rises from a moderate 58.5°F (14.7°C) in April to a pleasant 70.3°F (21.3°C). Weather in May »

Weather in June

June, the first month of the summer in Serena, is a warm month, with an average temperature ranging between min 61.3°F (16.3°C) and max 78.6°F (25.9°C). In Serena, Illinois, the average high-temperature in June marginally rises from an agreeable 70.3°F (21.3°C) in May to a warm 78.6°F (25.9°C). Weather in June »

Weather in July

July, like June, in Serena, Illinois, is another warm summer month, with an average temperature varying between 81°F (27.2°C) and 64°F (17.8°C). July is the warmest month, with an average high-temperature of 81°F (27.2°C) and an average low-temperature of 64°F (17.8°C). In July, the average heat index is evaluated at a tropical 87.8°F (31°C). Weather in July »

Weather in August

August, the last month of the summer in Serena, is another warm month, with an average temperature ranging between min 62.1°F (16.7°C) and max 79.3°F (26.3°C). In Serena, the average high-temperature in August is relatively the same as in July - a still moderately hot 79.3°F (26.3°C). Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Serena, Illinois, with an average temperature varying between 56.1°F (13.4°C) and 74.5°F (23.6°C). In Serena, the average high-temperature in September is almost the same as in August - a still moderately hot 74.5°F (23.6°C). Weather in September »

Weather in October

October, like September, in Serena, Illinois, is another comfortable autumn month, with an average temperature varying between 61.7°F (16.5°C) and 45.5°F (7.5°C). In October, the average high-temperature decreases from a warm 74.5°F (23.6°C) in September to an enjoyable 61.7°F (16.5°C). Weather in October »

Weather in November

November, the last month of the autumn in Serena, is also a frosty month, with an average temperature varying between 46.8°F (8.2°C) and 33.4°F (0.8°C). In November, the average high-temperature plummets from a comfortable 61.7°F (16.5°C) in October to a chilly 46.8°F (8.2°C). Weather in November »

Weather in December

December, the first month of the winter in Serena, is also a wintry month, with an average temperature ranging between max 34.7°F (1.5°C) and min 24.8°F (-4°C). In December, the average high-temperature decreases from a chilly 46.8°F (8.2°C) in November to a cold 34.7°F (1.5°C). Weather in December »
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FAQ

What is the coldest month in Serena?

The coldest month in Serena is January, with an average high-temperature of 28.8°F (-1.8°C) and an average low-temperature of 17.1°F (-8.3°C).

How many days does it rain in Serena?

In Serena, Illinois, during the entire year, the rain falls for 97.4 days and collects up to 8.07" (205mm) of precipitation.

When does it snow in Serena?

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

When does it snow the most in Serena?

The month with the most snowfall in Serena, Illinois, is January, when snow falls for 8.3 days and typically aggregates up to 0.98" (25mm) of snow.

How many days does it snow in Serena?

In Serena, Illinois, during the entire year, snow falls for 26.1 days and aggregates up to 3.54" (90mm) of snow.

What is the month with the least sunshine in Serena?

With an average of 3.8h of sunshine, January has the least sunshine of the year.

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

January and December, with an average maximum UV index of 1, are months with the lowest UV index in Serena, Illinois.

When is Daylight Saving Time (DST) in Serena?

On Sunday, March 13. 2022, at 2:00 am, Daylight Saving Time starts in Serena, 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 rainiest month in Serena?

May is the month with the most rainfall. Rain falls for 13.5 days and accumulates 1.14" (29mm) of precipitation.

When it does not snow in Serena?

May through September are months without snowfall.

When are the longest days in Serena?

June has the longest days of the year in Serena, Illinois, with an average of 15h and 8min of daylight.

When is the highest UV index in Serena?

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

What is the warmest month in Serena?

With an average high-temperature of 81°F (27.2°C) and an average low-temperature of 64°F (17.8°C), July is the warmest month in Serena.

What is the most humid month in Serena?

July is the most humid month, with an average relative humidity of 85%.

What month has the most sunshine in Serena?

August has the most sunshine of the year, with an average of 9.8h of sunshine.

What is the least humid month in Serena?

The least humid month is October, with an average relative humidity of 73%.

What is the driest month in Serena?

The month with the least rainfall is November, when the rain falls for 5.4 days and typically collects 0.35" (9mm) of precipitation.

What is the month with the shortest days in Serena?

With an average of 9h and 14min of daylight, December has the shortest days of the year.

Average pressure
Serena, IL

Average pressure - Serena, IL

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed
Serena, IL

Average wind speed - Serena, IL

The windiest month (with the highest average wind speed) is April (10mph).
The calmest month (with the lowest average wind speed) is August (6mph).

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Average rainfall
Serena, IL

Average rainfall - Serena, IL

The wettest month (with the highest rainfall) is May (1.14").
The driest month (with the least rainfall) is November (0.35").

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Average rainfall days
Serena, IL

Average rainfall days - Serena, IL

The month with the highest number of rainy days is May (13.5 days).
The month with the least rainy days is January (3 days).

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Average snowfall
Serena, IL

Average snowfall - Serena, IL

The month with the highest snowfall is January (0.98").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days
Serena, IL

Average snowfall days - Serena, IL

The month with the highest number of snowfall days is January (8.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
Serena, IL

Average daylight / Average sunshine - Serena, IL

The month with the longest days is June (Average daylight: 15h and 8min).
The month with the shortest days is December (Average daylight: 9h and 14min).

The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

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Average sunshine days
Serena, IL

Average sunshine days - Serena, IL

The month with the most sunshine days is December (23 days).
The month with the least sunshine days is May (14.7 days).

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Average visibility
Serena, IL

Average visibility - Serena, 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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