Climate and monthly weather forecast
Unionville, IL

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Weather in January

January, like December, in Unionville, Illinois, is a wintry winter month, with an average temperature fluctuating between 41.5°F (5.3°C) and 28.6°F (-1.9°C). January, on average, is the coldest month, registering a high temperature of 41.5°F (5.3°C) and a low of 28.6°F (-1.9°C). Weather in January »

Weather in February

February, the last month of the winter in Unionville, is a chilly month, with an average temperature fluctuating between 46.6°F (8.1°C) and 32.4°F (0.2°C). Unionville signifies an average high-temperature of a chilly 46.6°F (8.1°C) in February, closely mirroring the 41.5°F (5.3°C) of January. Weather in February »

Weather in March

The first month of the spring, March, is a mild month in Unionville, Illinois, with an average temperature fluctuating between 56.8°F (13.8°C) and 40.5°F (4.7°C). Unionville sees an increase in the average high-temperature with the arrival of March, moving from February's frosty 46.6°F (8.1°C) to a moderate 56.8°F (13.8°C). Weather in March »

Weather in April

April is a refreshing spring month in Unionville, Illinois, with an average temperature varying between 49.6°F (9.8°C) and 67.8°F (19.9°C). Unionville's transition into April is marked by a rise in the average high-temperature, advancing from a mild 56.8°F (13.8°C) in March to a still refreshing 67.8°F (19.9°C). Weather in April »

Weather in May

The last month of the spring, May, is a warm month in Unionville, Illinois, with temperature in the range of an average high of 76.6°F (24.8°C) and an average low of 59°F (15°C). Unionville's May weather indicates a minor ascent in high-temperatures, adjusting from a refreshing 67.8°F (19.9°C) in April to a moderately hot 76.6°F (24.8°C). Weather in May »

Weather in June

June, the first month of the summer in Unionville, is still a warm month, with an average temperature ranging between max 85.8°F (29.9°C) and min 66.4°F (19.1°C). Unionville's transition into June brings a rise in the average high-temperature, moving from a warm 76.6°F (24.8°C) in May to a still moderately hot 85.8°F (29.9°C). Weather in June »

Weather in July

July in Unionville, Illinois, is a hot summer month, with an average temperature ranging between max 88.7°F (31.5°C) and min 69.4°F (20.8°C). The warmest period is July, when temperatures fluctuate between an average high of 88.7°F (31.5°C) and a low of 69.4°F (20.8°C). The heat index value during July is estimated at a scorching 105.8°F (41°C). Weather in July »

Weather in August

August, the last month of the summer in Unionville, is also a hot month, with an average temperature ranging between min 67.6°F (19.8°C) and max 87.3°F (30.7°C). The beginning of August records an average high-temperature of a still tropical 87.3°F (30.7°C), almost echoing the conditions of the previous month. Weather in August »

Weather in September

The first month of the autumn, September, is still a warm month in Unionville, Illinois, with an average temperature fluctuating between 61.9°F (16.6°C) and 81.7°F (27.6°C). Start of September brings a slight shift in the average high-temperature, dipping a bit from August's tropical 87.3°F (30.7°C) to a warm 81.7°F (27.6°C). Weather in September »

Weather in October

October, the same as September, in Unionville, Illinois, is another pleasant autumn month, with an average temperature fluctuating between 69.3°F (20.7°C) and 51.1°F (10.6°C). The commencement of October involves a temperature shift, with the average high-temperature dropping from a warm 81.7°F (27.6°C) in September to an agreeable 69.3°F (20.7°C). Weather in October »

Weather in November

November, the last month of the autumn in Unionville, is also a moderate month, with an average temperature fluctuating between 40.1°F (4.5°C) and 55.6°F (13.1°C). November suggests a modest reduction in the average high-temperature, shifting from an agreeable 69.3°F (20.7°C) in October to a refreshing 55.6°F (13.1°C). Weather in November »

Weather in December

The first month of the winter, December, is still a chilly month in Unionville, Illinois, with temperature in the range of an average high of 46.2°F (7.9°C) and an average low of 34.2°F (1.2°C). Start of December brings a shift in the average high-temperature, falling from November's moderate 55.6°F (13.1°C) to a frosty 46.2°F (7.9°C). Weather in December »
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Frequently asked questions

What are the coldest months in Unionville?

Unionville's coldest month, January, registers temperatures that range from a high of 41.5°F (5.3°C) to a low of 28.6°F (-1.9°C).

How many days does it rain in Unionville?

In Unionville, Illinois, during the entire year, the rain falls for 126.4 days and collects up to 16.89" (429mm) of precipitation.

When does it snow in Unionville?

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

How many days does it snow in Unionville?

Throughout the year, in Unionville, Illinois, there are 8.9 snowfall days, and 1.65" (42mm) of snow is accumulated.

When is the lowest UV index in Unionville?

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

When does it snow the most in Unionville?

February is the month with the most snowfall in Unionville. Snow falls for 3.3 days and accumulates 0.71" (18mm) of snow.

What is the month with the least sunshine in Unionville?

February has the least sunshine of the year in Unionville, Illinois, with an average of 4.6h of sunshine.

What is the most humid month in Unionville?

The months with the highest humidity in Unionville, Illinois, are March and May, with an average relative humidity of 79%.

When is Daylight Saving Time (DST) in Unionville?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Unionville, 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.

When it does not snow in Unionville?

April through October are months without snowfall.

What is the rainiest month in Unionville?

May is the month with the most rainfall in Unionville. Rain falls for 14.7 days and accumulates 1.93" (49mm) of precipitation.

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

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

When are the longest days in Unionville?

With an average of 14h and 42min of daylight, June has the longest days of the year.

What are the months with the most sunshine in Unionville?

The months with the most sunshine in Unionville are June and July, with an average of 10.5h of sunshine.

What time of the year is the hottest in Unionville?

July temperatures in Unionville tend to peak at an average high of 88.7°F (31.5°C) and dip to a low of 69.4°F (20.8°C).

What is the driest month in Unionville?

The month with the least rainfall in Unionville, Illinois, is September, when the rain falls for 8.6 days and typically collects 0.63" (16mm) of precipitation.

What is the least humid month in Unionville?

October is the least humid month in Unionville, with an average relative humidity of 70%.

What is the month with the shortest days in Unionville?

With an average of 9h and 42min of daylight, December has the shortest days of the year in Unionville, Illinois.

Average temperature
Unionville, IL

Average temperature - Unionville, IL

The warmest month (with the highest average high temperature) is July (88.7°F).
The month with the lowest average high temperature is January (41.5°F).

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (28.6°F).

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Average pressure
Unionville, IL

Average pressure - Unionville, IL

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

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Average wind speed
Unionville, IL

Average wind speed - Unionville, IL

The windiest month (with the highest average wind speed) is April (9mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).

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Average humidity
Unionville, IL

Average humidity - Unionville, IL

The months with the highest relative humidity are March and May (79%).
The month with the lowest relative humidity is October (70%).

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Average rainfall
Unionville, IL

Average rainfall - Unionville, IL

The wettest month (with the highest rainfall) is May (1.93").
The driest month (with the least rainfall) is September (0.63").

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Average rainfall days
Unionville, IL

Average rainfall days - Unionville, IL

The month with the highest number of rainy days is May (14.7 days).
The month with the least rainy days is October (7.6 days).

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Average snowfall
Unionville, IL

Average snowfall - Unionville, IL

The month with the highest snowfall is February (0.71").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days
Unionville, IL

Average snowfall days - Unionville, IL

The month with the highest number of snowfall days is February (3.3 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
Unionville, IL

Average daylight / Average sunshine - Unionville, IL

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).

The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

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Average sunshine days
Unionville, IL

Average sunshine days - Unionville, IL

The month with the most sunshine days is October (22.3 days).
The month with the least sunshine days is July (14.2 days).

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Average UV index
Unionville, IL

Average UV index - Unionville, 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 and December (UV index 2).

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Average visibility
Unionville, IL

Average visibility - Unionville, 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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Unionville, Illinois, USA

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