Climate and monthly weather forecast
McConnell, IL

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Weather in January

January, the same as December, in McConnell, Illinois, is another subzero cold winter month, with temperature in the range of an average high of 24.8°F (-4°C) and an average low of 12.9°F (-10.6°C). McConnell's January weather reaches an average high of 24.8°F (-4°C) and an average low of 12.9°F (-10.6°C), making it the coldest month. Weather in January »

Weather in February

The last month of the winter, February, is also a subzero cold month in McConnell, Illinois, with temperature in the range of an average low of 16°F (-8.9°C) and an average high of 28.9°F (-1.7°C). The initiation of February sees an average high-temperature of a still subzero cold 28.9°F (-1.7°C), showing minor variations from the previous month. Weather in February »

Weather in March

March, the first month of the spring in McConnell, is a frosty month, with an average temperature varying between 43.5°F (6.4°C) and 28.8°F (-1.8°C). In March, the meteorological conditions markedly change with the average high-temperature ascending from a subzero cold 28.9°F (-1.7°C) in February to a chilly 43.5°F (6.4°C). Weather in March »

Weather in April

April is a refreshing spring month in McConnell, Illinois, with an average temperature ranging between max 55.8°F (13.2°C) and min 38.8°F (3.8°C). April's onset witnesses a shift in the average high-temperature, moving from a chilly 43.5°F (6.4°C) in March to a mild 55.8°F (13.2°C). Weather in April »

Weather in May

The last month of the spring, May, is a comfortable month in McConnell, Illinois, with an average temperature fluctuating between 67.5°F (19.7°C) and 50.5°F (10.3°C). In May, the meteorological conditions change with the average high-temperature moving from a refreshing 55.8°F (13.2°C) in April to an enjoyable 67.5°F (19.7°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in McConnell, Illinois, with an average temperature varying between 76.5°F (24.7°C) and 59.4°F (15.2°C). June's arrival coincides with a temperature rise, moving from May's comfortable 67.5°F (19.7°C) to a moderately hot 76.5°F (24.7°C). Weather in June »

Weather in July

July, like June, in McConnell, Illinois, is a moderately hot summer month, with an average temperature fluctuating between 62.8°F (17.1°C) and 79.3°F (26.3°C). July is the warmest month of the year, registering average temperatures as high as 79.3°F (26.3°C) and as low as 62.8°F (17.1°C). Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in McConnell, Illinois, with temperature in the range of an average low of 60.4°F (15.8°C) and an average high of 78.1°F (25.6°C). August's arrival registers an average high-temperature of a still warm 78.1°F (25.6°C), closely aligning with the temperature of the previous month. Weather in August »

Weather in September

September, the first month of the autumn in McConnell, is also an agreeable month, with an average temperature fluctuating between 72.5°F (22.5°C) and 53.4°F (11.9°C). September witnesses a gentle descent in average high-temperature, descending from August's warm 78.1°F (25.6°C) to an agreeable 72.5°F (22.5°C). Weather in September »

Weather in October

October, the same as September, in McConnell, Illinois, is another refreshing autumn month, with an average temperature ranging between min 42.6°F (5.9°C) and max 58.3°F (14.6°C). McConnell's October weather shows a moderate shift in high-temperatures, falling from September's agreeable 72.5°F (22.5°C) to a mild 58.3°F (14.6°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a frosty month in McConnell, Illinois, with an average temperature varying between 30.6°F (-0.8°C) and 43.9°F (6.6°C). The shift from October to November is characterized by a clear decrease in the average high-temperature, reducing from a refreshing 58.3°F (14.6°C) to a chilly 43.9°F (6.6°C). Weather in November »

Weather in December

December, the first month of the winter in McConnell, is also a subzero cold month, with an average temperature fluctuating between 21.4°F (-5.9°C) and 31.6°F (-0.2°C). The shift from November to December involves a decrease in the average high-temperature, from a chilly 43.9°F (6.6°C) to a subzero cold 31.6°F (-0.2°C). Weather in December »
Updated: Aug 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the coldest?

The coldest month is January, with an average high-temperature of 24.8°F (-4°C) and an average low-temperature of 12.9°F (-10.6°C).

What is the most humid month?

The most humid month is January, with an average relative humidity of 87%.

What is the driest month?

The month with the least rainfall is January, when the rain falls for 5.3 days and typically collects 1.06" (27mm) of precipitation.

How many days does it rain?

Throughout the year, there are 145.9 rainfall days, and 22.8" (579mm) of precipitation is accumulated.

When does it snow?

Months with snowfall are January through April, October through December.

What is the snowiest month?

January is the month with the most snowfall. Snow falls for 13.1 days and accumulates 3.46" (88mm) of snow.

How much does it snow?

Throughout the year, there are 50.1 snowfall days, and 13.62" (346mm) of snow is accumulated.

What is the month with the least sunshine in McConnell?

The month with the least sunshine is January, with an average of 3.6h of sunshine.

What are the months with the lowest UV index?

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

When is Daylight Saving Time (DST)?

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 are the least humid months?

The months with the lowest humidity are April and October, with an average relative humidity of 76%.

When it does not snow?

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

When is the highest UV index?

May through August, with an average maximum UV index of 5, are months with the highest UV index.

What is the rainiest month?

The month with the most rainfall is June, when the rain falls for 17.9 days and typically aggregates up to 3.43" (87mm) of precipitation.

When are the longest days?

June has the longest days of the year, with an average of 15h and 12min of daylight.

What time of the year is the hottest?

With average high and low temperatures of 79.3°F (26.3°C) and 62.8°F (17.1°C) respectively, July is McConnell's warmest month.

What are the months with the most sunshine?

July and August, with an average of 9.7h of sunshine, are months with the most sunshine.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 6min of daylight.

Average temperature
McConnell, IL

Average temperature - McConnell, IL

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (24.8°F).

The month with the highest average low temperature is July (62.8°F).
The coldest month (with the lowest average low temperature) is January (12.9°F).

Average pressure
McConnell, IL

Average pressure - McConnell, IL

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed
McConnell, IL

Average wind speed - McConnell, IL

The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).

Average humidity
McConnell, IL

Average humidity - McConnell, IL

The month with the highest relative humidity is January (87%).
The months with the lowest relative humidity are April and October (76%).

Average rainfall
McConnell, IL

Average rainfall - McConnell, IL

The wettest month (with the highest rainfall) is June (3.43").
The driest month (with the least rainfall) is January (1.06").

Average rainfall days
McConnell, IL

Average rainfall days - McConnell, IL

The month with the highest number of rainy days is May (18.3 days).
The months with the least rainy days are January and February (5.3 days).

Average snowfall
McConnell, IL

Average snowfall - McConnell, IL

The month with the highest snowfall is January (3.46").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days
McConnell, IL

Average snowfall days - McConnell, IL

The month with the highest number of snowfall days is January (13.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine
McConnell, IL

Average daylight / Average sunshine - McConnell, IL

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).

The months with the most sunshine are July and August (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

Average sunshine days
McConnell, IL

Average sunshine days - McConnell, IL

The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is June (9.3 days).

Average UV index
McConnell, IL

Average UV index - McConnell, IL

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).

Average visibility
McConnell, IL

Average visibility - McConnell, IL

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

McConnell, Illinois, USA

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