Climate and monthly weather forecast
Coulterville, IL

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Weather in January

January, the same as December, is another cold winter month in Coulterville, Illinois, with an average temperature fluctuating between 25.3°F (-3.7°C) and 38.8°F (3.8°C). January is the month when Coulterville, Illinois, experiences its coldest temperatures, averaging a high of 38.8°F (3.8°C) and a low of 25.3°F (-3.7°C). Weather in January »

Weather in February

The last month of the winter, February, is a chilly month in Coulterville, Illinois, with an average temperature varying between 28.9°F (-1.7°C) and 43.3°F (6.3°C). The transition into February marks the average high-temperature at a frosty 43.3°F (6.3°C), differing minimally from January's 38.8°F (3.8°C). Weather in February »

Weather in March

March, the first month of the spring in Coulterville, is a cool month, with an average temperature fluctuating between 38.7°F (3.7°C) and 55°F (12.8°C). Coulterville's transition into March is marked by a temperature shift, moving from a chilly 43.3°F (6.3°C) in February to a cool 55°F (12.8°C). Weather in March »

Weather in April

April is an enjoyable spring month in Coulterville, Illinois, with an average temperature fluctuating between 48°F (8.9°C) and 65.8°F (18.8°C). April's arrival brings a change in high-temperatures, moving from a cool 55°F (12.8°C) in March to a comfortable 65.8°F (18.8°C). Weather in April »

Weather in May

May, the last month of the spring in Coulterville, is a warm month, with an average temperature ranging between max 74.8°F (23.8°C) and min 58.1°F (14.5°C). The shift from April to May is marked by an increase in the average high-temperature, moving from an enjoyable 65.8°F (18.8°C) to a moderately hot 74.8°F (23.8°C). Weather in May »

Weather in June

The first month of the summer, June, is also a moderately hot month in Coulterville, Illinois, with an average temperature varying between 66.6°F (19.2°C) and 84.6°F (29.2°C). With the transition into June, Coulterville experiences an increase in average high-temperatures, moving up from a moderately hot 74.8°F (23.8°C) in May to a still warm 84.6°F (29.2°C). Weather in June »

Weather in July

July in Coulterville, Illinois, is a tropical summer month, with temperature in the range of an average high of 87.3°F (30.7°C) and an average low of 68.5°F (20.3°C). The warmest period tends to be July, when average temperatures fluctuate between a high of 87.3°F (30.7°C) and a low of 68.5°F (20.3°C). July's average heat index is computed to be a fiery hot 102.2°F (39°C). Weather in July »

Weather in August

August, the last month of the summer in Coulterville, is also a moderately hot month, with an average temperature fluctuating between 66°F (18.9°C) and 85.5°F (29.7°C). The shift into August reveals an average high-temperature of a moderately hot 85.5°F (29.7°C), closely mirroring July's climate. Weather in August »

Weather in September

September, the first month of the autumn in Coulterville, is also a moderately hot month, with an average temperature ranging between min 60.1°F (15.6°C) and max 79.5°F (26.4°C). September's arrival comes with a mild decrease in the average high-temperature, moving subtly from a warm 85.5°F (29.7°C) in August to a still moderately hot 79.5°F (26.4°C). Weather in September »

Weather in October

October, the same as September, is another refreshing autumn month in Coulterville, Illinois, with an average temperature fluctuating between 49.1°F (9.5°C) and 66.9°F (19.4°C). The onset of October is marked by a decrease in temperature, transitioning from a moderately hot 79.5°F (26.4°C) in September to a refreshing 66.9°F (19.4°C). Weather in October »

Weather in November

November, the last month of the autumn in Coulterville, is another cool month, with an average temperature varying between 38.5°F (3.6°C) and 53.6°F (12°C). The move into November indicates a reduction in the average high-temperature, down from October's comfortable 66.9°F (19.4°C) to a cool 53.6°F (12°C). Weather in November »

Weather in December

December, the first month of the winter in Coulterville, is still a chilly month, with an average temperature ranging between max 43.5°F (6.4°C) and min 31.1°F (-0.5°C). A subtle decrease in the average high-temperature marks December, falling from November's fresh 53.6°F (12°C) to a frosty 43.5°F (6.4°C). Weather in December »
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the coldest in Coulterville?

Coulterville experiences its average lowest temperatures in January, reaching a peak of 38.8°F (3.8°C) and a minimum of 25.3°F (-3.7°C).

How much does it rain in Coulterville?

Throughout the year, there are 125.7 rainfall days, and 18.31" (465mm) of precipitation is accumulated.

When does it snow in Coulterville?

January through March, October through December are months with snowfall in Coulterville, Illinois.

How much does it snow in Coulterville?

Throughout the year, in Coulterville, Illinois, there are 14.8 snowfall days, and 3.94" (100mm) of snow is accumulated.

What is the month with the least sunshine in Coulterville?

January has the least sunshine of the year in Coulterville, Illinois, with an average of 4.7h of sunshine.

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

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 Coulterville?

February is the month with the least rainfall in Coulterville, Illinois. Rain falls for 7.3 days and accumulates 0.94" (24mm) of precipitation.

When does it snow the most in Coulterville?

February is the month with the most snowfall in Coulterville. Snow falls for 4.2 days and accumulates 1.38" (35mm) of snow.

When is Daylight Saving Time (DST) in Coulterville?

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

In Coulterville, Illinois, snow does not fall in April through September.

What is the most humid month in Coulterville?

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

What is the wettest month in Coulterville?

May is the month with the most rainfall. Rain falls for 14.3 days and accumulates 2.2" (56mm) of precipitation.

When are the longest days in Coulterville?

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

What month has the most sunshine in Coulterville?

June has the most sunshine of the year in Coulterville, with an average of 10.6h of sunshine.

What is the month with the highest UV index in Coulterville?

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

What part of the year is the hottest in Coulterville?

July, with its average high-temperature of 87.3°F (30.7°C) and an average low-temperature of 68.5°F (20.3°C), holds the record as the warmest month in Coulterville, Illinois.

What is the least humid month in Coulterville?

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

What is the month with the shortest days in Coulterville?

The month with the shortest days is December, with an average of 9h and 36min of daylight.

Average temperature
Coulterville, IL

Average temperature - Coulterville, 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 (68.5°F).
The coldest month (with the lowest average low temperature) is January (25.3°F).

Average pressure
Coulterville, IL

Average pressure - Coulterville, 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
Coulterville, IL

Average wind speed - Coulterville, IL

The windiest month (with the highest average wind speed) is January (9.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.6mph).

Average humidity
Coulterville, IL

Average humidity - Coulterville, IL

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

Average rainfall
Coulterville, IL

Average rainfall - Coulterville, IL

The wettest month (with the highest rainfall) is May (2.2").
The driest month (with the least rainfall) is February (0.94").

Average rainfall days
Coulterville, IL

Average rainfall days - Coulterville, IL

The month with the highest number of rainy days is July (15 days).
The month with the least rainy days is January (6.1 days).

Average snowfall
Coulterville, IL

Average snowfall - Coulterville, IL

The month with the highest snowfall is February (1.38").
The months with the least snowfall are April, May, June, July, August and September (0").

Average snowfall days
Coulterville, IL

Average snowfall days - Coulterville, IL

The month with the highest number of snowfall days is January (4.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight / Average sunshine
Coulterville, IL

Average daylight / Average sunshine - Coulterville, 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 June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).

Average sunshine days
Coulterville, IL

Average sunshine days - Coulterville, IL

The month with the most sunshine days is December (21.7 days).
The month with the least sunshine days is July (13 days).

Average UV index
Coulterville, IL

Average UV index - Coulterville, 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
Coulterville, IL

Average visibility - Coulterville, 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).

Coulterville, Illinois, USA

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