Climate and monthly weather forecast
Sidell, IL

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Weather in January

January, the same as December, is another cold winter month in Sidell, Illinois, with temperature in the range of an average high of 33.8°F (1°C) and an average low of 21.7°F (-5.7°C). In Sidell, Illinois, the lowest average temperatures are observed in January, with a high of 33.8°F (1°C) and a low of 21.7°F (-5.7°C). Weather in January »

Weather in February

The last month of the winter, February, is also a wintry month in Sidell, Illinois, with an average temperature fluctuating between 38.8°F (3.8°C) and 25.5°F (-3.6°C). Stepping into February, Sidell records an average high-temperature of a still wintry 38.8°F (3.8°C), almost consistent with January. Weather in February »

Weather in March

March, the first month of the spring in Sidell, is a cool month, with an average temperature fluctuating between 36°F (2.2°C) and 50.4°F (10.2°C). With the onset of March, the average high-temperature slightly shifts from February's cold 38.8°F (3.8°C) to a cool 50.4°F (10.2°C). Weather in March »

Weather in April

April is a refreshing spring month in Sidell, Illinois, with an average temperature fluctuating between 46°F (7.8°C) and 62.2°F (16.8°C). In Sidell, stepping into April brings a temperature increase, moving up from March's fresh 50.4°F (10.2°C) to an enjoyable 62.2°F (16.8°C). Weather in April »

Weather in May

The last month of the spring, May, is an agreeable month in Sidell, Illinois, with an average temperature ranging between max 72.7°F (22.6°C) and min 56.1°F (13.4°C). The shift into May is characterized by a rise in the average high-temperature, transitioning from April's refreshing 62.2°F (16.8°C) to a pleasant 72.7°F (22.6°C). Weather in May »

Weather in June

June, the first month of the summer in Sidell, is a moderately hot month, with an average temperature ranging between min 64°F (17.8°C) and max 80.6°F (27°C). With the onset of June, Sidell observes a minor temperature ascent, with the average high-temperature adjusting from May's agreeable 72.7°F (22.6°C) to a moderately hot 80.6°F (27°C). Weather in June »

Weather in July

July, like June, in Sidell, Illinois, is another warm summer month, with an average temperature varying between 82.4°F (28°C) and 65.8°F (18.8°C). With average temperatures fluctuating between a high of 82.4°F (28°C) and a low of 65.8°F (18.8°C), July stands out as the warmest month. The heat index value during July is calculated to be a hot 91.4°F (33°C). Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Sidell, Illinois, with an average temperature varying between 64°F (17.8°C) and 81.1°F (27.3°C). In Sidell, August's average high-temperature stands at a still warm 81.1°F (27.3°C), closely related to the preceding month. Weather in August »

Weather in September

The first month of the autumn, September, is still a warm month in Sidell, Illinois, with an average temperature varying between 77.2°F (25.1°C) and 58.6°F (14.8°C). The shift into September records an average high-temperature of a still warm 77.2°F (25.1°C), subtly varied from August's 81.1°F (27.3°C). Weather in September »

Weather in October

October, the same as September, is another refreshing autumn month in Sidell, Illinois, with temperature in the range of an average high of 64°F (17.8°C) and an average low of 47.7°F (8.7°C). Sidell's weather changes with the onset of October, slightly falling from a warm 77.2°F (25.1°C) in September to a refreshing 64°F (17.8°C). Weather in October »

Weather in November

November, the last month of the autumn in Sidell, is also a frosty month, with temperature in the range of an average high of 49.6°F (9.8°C) and an average low of 36°F (2.2°C). With the onset of November, Sidell's weather experiences a distinct temperature drop, moving from a comfortable 64°F (17.8°C) in October to a frosty 49.6°F (9.8°C). Weather in November »

Weather in December

December, the first month of the winter in Sidell, is also an icy month, with an average temperature varying between 39°F (3.9°C) and 28.2°F (-2.1°C). A change in temperatures is noted as November gives way to December, with average highs reducing from a frosty 49.6°F (9.8°C) to a cold 39°F (3.9°C). Weather in December »
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the coldest in Sidell?

Sidell's temperature records reveal January as the coldest month, marked by average highs of 33.8°F (1°C) and lows of 21.7°F (-5.7°C).

How many days does it rain in Sidell?

In Sidell, Illinois, during the entire year, the rain falls for 133.4 days and collects up to 19.49" (495mm) of precipitation.

When does it snow in Sidell?

Months with snowfall are January through April, November and December.

How much does it snow in Sidell?

Throughout the year, in Sidell, there are 23.7 snowfall days, and 5.2" (132mm) of snow is accumulated.

What is the month with the least sunshine in Sidell?

The month with the least sunshine is January, with an average of 4h of sunshine.

When is the lowest UV index in Sidell?

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

What is the driest month in Sidell?

The month with the least rainfall is February, when the rain falls for 6.3 days and typically collects 0.94" (24mm) of precipitation.

When is Daylight Saving Time (DST) in Sidell?

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

April is the month with the most rainfall. Rain falls for 13.6 days and accumulates 2.76" (70mm) of precipitation.

When it does not snow in Sidell?

In Sidell, Illinois, snow does not fall in May through October.

When are the longest days in Sidell?

With an average of 15h and 0min of daylight, June has the longest days of the year in Sidell, Illinois.

What month has the most sunshine in Sidell?

The month with the most sunshine is June, with an average of 10.3h of sunshine.

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

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

What are the warmest months in Sidell?

July stands out as Sidell's warmest month, with temperatures ranging between an average high of 82.4°F (28°C) and a low of 65.8°F (18.8°C).

What is the most humid month in Sidell?

The most humid month in Sidell is July, with an average relative humidity of 83%.

What is the least humid month in Sidell?

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

When does it snow the most in Sidell?

December is the month with the most snowfall in Sidell, Illinois. Snow falls for 4.8 days and accumulates 1.61" (41mm) of snow.

What is the month with the shortest days in Sidell?

December has the shortest days of the year in Sidell, Illinois, with an average of 9h and 24min of daylight.

Average pressure
Sidell, IL

Average pressure - Sidell, IL

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed
Sidell, IL

Average wind speed - Sidell, IL

The windiest months (with the highest average wind speed) are January and February (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.1mph).

Average rainfall
Sidell, IL

Average rainfall - Sidell, IL

The wettest month (with the highest rainfall) is April (2.76").
The driest month (with the least rainfall) is February (0.94").

Average rainfall days
Sidell, IL

Average rainfall days - Sidell, IL

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is February (6.3 days).

Average snowfall
Sidell, IL

Average snowfall - Sidell, IL

The month with the highest snowfall is December (1.61").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days
Sidell, IL

Average snowfall days - Sidell, IL

The month with the highest number of snowfall days is January (6.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight / Average sunshine
Sidell, IL

Average daylight / Average sunshine - Sidell, 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 24min).

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 0min).

Average sunshine days
Sidell, IL

Average sunshine days - Sidell, IL

The month with the most sunshine days is November (20 days).
The month with the least sunshine days is May (11.3 days).

Average UV index
Sidell, IL

Average UV index - Sidell, IL

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

Average visibility
Sidell, IL

Average visibility - Sidell, 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).

Sidell, Illinois, USA

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