Climate and monthly weather forecast
Pinckneyville, IL

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Weather in January

January, like December, in Pinckneyville, Illinois, is a wintry winter month, with an average temperature fluctuating between 25.7°F (-3.5°C) and 38.8°F (3.8°C). The month of January, characterized by an average high of 38.8°F (3.8°C) and a low of 25.7°F (-3.5°C), is recognized as the coldest. Weather in January »

Weather in February

The last month of the winter, February, is a chilly month in Pinckneyville, Illinois, with an average temperature ranging between max 43.7°F (6.5°C) and min 29.5°F (-1.4°C). The ushering in of February brings an average high-temperature of a frosty 43.7°F (6.5°C), closely mirroring the 38.8°F (3.8°C) of January. Weather in February »

Weather in March

March, the first month of the spring in Pinckneyville, is a cool month, with an average temperature fluctuating between 38.7°F (3.7°C) and 55°F (12.8°C). March signals a shift in the average high-temperature, moving from February's chilly 43.7°F (6.5°C) to a cool 55°F (12.8°C). Weather in March »

Weather in April

April in Pinckneyville, Illinois, is an enjoyable spring month, with an average temperature fluctuating between 66°F (18.9°C) and 48.4°F (9.1°C). The transition from March to April brings a temperature rise, with average high-temperatures increasing from a cool 55°F (12.8°C) to an enjoyable 66°F (18.9°C). Weather in April »

Weather in May

May, the last month of the spring in Pinckneyville, is a moderately hot month, with an average temperature fluctuating between 75.4°F (24.1°C) and 58.1°F (14.5°C). Pinckneyville sees an increase in the average high-temperature with the arrival of May, moving from April's enjoyable 66°F (18.9°C) to a moderately hot 75.4°F (24.1°C). Weather in May »

Weather in June

June, the first month of the summer in Pinckneyville, is also a moderately hot month, with an average temperature varying between 84.6°F (29.2°C) and 66.6°F (19.2°C). The shift into June brings an increase in the average high-temperature, moving from a warm 75.4°F (24.1°C) in May to a still moderately hot 84.6°F (29.2°C). Weather in June »

Weather in July

July in Pinckneyville, Illinois, is a tropical summer month, with an average temperature ranging between max 87.3°F (30.7°C) and min 68.7°F (20.4°C). July proves to be the warmest month, recording an average peak temperature of 87.3°F (30.7°C) and a minimum temperature of 68.7°F (20.4°C). For July, the heat index is computed to be a very hot 102.2°F (39°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Pinckneyville, Illinois, with an average temperature ranging between max 85.5°F (29.7°C) and min 66°F (18.9°C). August's presence records an average high-temperature of a warm 85.5°F (29.7°C), closely mirroring July's climate. Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Pinckneyville, Illinois, with an average temperature varying between 60.1°F (15.6°C) and 79.7°F (26.5°C). The start of September comes with a small reduction in the average high-temperature, subtly receding from a moderately hot 85.5°F (29.7°C) in August to a still warm 79.7°F (26.5°C). Weather in September »

Weather in October

October, the same as September, is another enjoyable autumn month in Pinckneyville, Illinois, with an average temperature ranging between max 67.1°F (19.5°C) and min 49.3°F (9.6°C). In October, the average high-temperature decreases from a warm 79.7°F (26.5°C) in September to a comfortable 67.1°F (19.5°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a fresh month in Pinckneyville, Illinois, with an average temperature fluctuating between 53.6°F (12°C) and 38.3°F (3.5°C). Pinckneyville experiences a temperature shift at the start of November, with average high-temperatures adjusting from a comfortable 67.1°F (19.5°C) in October to a cool 53.6°F (12°C). Weather in November »

Weather in December

December, the first month of the winter in Pinckneyville, is still a chilly month, with an average temperature varying between 31.1°F (-0.5°C) and 43.5°F (6.4°C). Pinckneyville's progression into December involves a drop in the average high-temperature, receding from a cool 53.6°F (12°C) in November to a chilly 43.5°F (6.4°C). Weather in December »
Updated: Jun 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest month?

Temperature records mark January as the coldest month, with highs averaging 38.8°F (3.8°C) and lows at 25.7°F (-3.5°C).

What is the driest month?

The month with the least rainfall is January, when the rain falls for 8.4 days and typically collects 1.5" (38mm) of precipitation.

How many days does it rain?

In Pinckneyville, during the entire year, the rain falls for 147.6 days and collects up to 29.17" (741mm) of precipitation.

When does it snow?

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

How much does it snow in Pinckneyville?

In Pinckneyville, during the entire year, snow falls for 18 days and aggregates up to 4.53" (115mm) of snow.

What is the month with the least sunshine?

With an average of 4.6h of sunshine, January has the least sunshine of the year.

What are the months with the lowest UV index in Pinckneyville?

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

What is the snowiest month?

February is the month with the most snowfall. Snow falls for 5.1 days and accumulates 1.5" (38mm) of snow.

When is Daylight Saving Time (DST) in Pinckneyville?

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

April is the month with the most rainfall. Rain falls for 15.1 days and accumulates 3.58" (91mm) of precipitation.

What is the most humid month?

May is the most humid month, with an average relative humidity of 79%.

When it does not snow?

May through October are months without snowfall.

When are the longest days?

June has the longest days of the year, with an average of 14h and 48min of daylight.

When is the highest UV index?

June through August, with an average maximum UV index of 6, are months with the highest UV index.

What time of the year is the hottest?

Temperature records mark July as the warmest month, with highs averaging 87.3°F (30.7°C) and lows at 68.7°F (20.4°C).

What month has the most sunshine in Pinckneyville?

July has the most sunshine of the year, with an average of 10.5h of sunshine.

What is the least humid month?

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

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 36min of daylight.

Average temperature
Pinckneyville, IL

Average temperature - Pinckneyville, IL

The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (38.8°F).

The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).

Average pressure
Pinckneyville, IL

Average pressure - Pinckneyville, IL

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed
Pinckneyville, IL

Average wind speed - Pinckneyville, IL

The windiest months (with the highest average wind speed) are January and February (9.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).

Average humidity
Pinckneyville, IL

Average humidity - Pinckneyville, IL

The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (71%).

Average rainfall
Pinckneyville, IL

Average rainfall - Pinckneyville, IL

The wettest month (with the highest rainfall) is April (3.58").
The driest month (with the least rainfall) is January (1.5").

Average rainfall days
Pinckneyville, IL

Average rainfall days - Pinckneyville, IL

The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is December (8.2 days).

Average snowfall
Pinckneyville, IL

Average snowfall - Pinckneyville, IL

The month with the highest snowfall is February (1.5").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days
Pinckneyville, IL

Average snowfall days - Pinckneyville, IL

The month with the highest number of snowfall days is January (5.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight / Average sunshine
Pinckneyville, IL

Average daylight / Average sunshine - Pinckneyville, IL

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).

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

Average sunshine days
Pinckneyville, IL

Average sunshine days - Pinckneyville, IL

The months with the most sunshine days are October and November (19.5 days).
The month with the least sunshine days is May (11.4 days).

Average UV index
Pinckneyville, IL

Average UV index - Pinckneyville, IL

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

Average visibility
Pinckneyville, IL

Average visibility - Pinckneyville, 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).

Pinckneyville, Illinois, USA

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