Climate and monthly weather forecast
McIllwain, TN

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Weather in January

January, the same as December, in McIllwain, Tennessee, is a frosty winter month, with an average temperature fluctuating between 30.7°F (-0.7°C) and 45°F (7.2°C). In McIllwain, the lowest average temperatures are observed in January, with a high of 45°F (7.2°C) and a low of 30.7°F (-0.7°C). Weather in January »

Weather in February

The last month of the winter, February, is another chilly month in McIllwain, Tennessee, with temperature in the range of an average high of 49.5°F (9.7°C) and an average low of 35.1°F (1.7°C). McIllwain experiences a minor change to a still frosty 49.5°F (9.7°C) in average high-temperature during February, closely reflecting January. Weather in February »

Weather in March

March, the first month of the spring in McIllwain, is a moderate month, with temperature in the range of an average low of 42.3°F (5.7°C) and an average high of 59.2°F (15.1°C). McIllwain in March experiences an increase in the average high-temperature, moving from February's chilly 49.5°F (9.7°C) to a refreshing 59.2°F (15.1°C). Weather in March »

Weather in April

April is an agreeable spring month in McIllwain, Tennessee, with an average temperature ranging between max 69.4°F (20.8°C) and min 50.5°F (10.3°C). McIllwain sees an increase in average high-temperatures during April, moving from a refreshing 59.2°F (15.1°C) in March to a pleasant 69.4°F (20.8°C). Weather in April »

Weather in May

The last month of the spring, May, is a warm month in McIllwain, Tennessee, with an average temperature fluctuating between 59°F (15°C) and 78.6°F (25.9°C). As April transitions into May, a change in temperatures is observed, with average highs moving from a pleasant 69.4°F (20.8°C) to a warm 78.6°F (25.9°C). Weather in May »

Weather in June

June, the first month of the summer in McIllwain, is a tropical month, with an average temperature ranging between max 87.4°F (30.8°C) and min 66°F (18.9°C). June's arrival signals a subtle increase in average high-temperatures, moving from May's warm 78.6°F (25.9°C) to a hot 87.4°F (30.8°C). Weather in June »

Weather in July

July, like June, is another tropical summer month in McIllwain, Tennessee, with temperature in the range of an average low of 69.1°F (20.6°C) and an average high of 89.6°F (32°C). In McIllwain, July is identified by the highest average temperatures, reaching a peak of 89.6°F (32°C) and a low of 69.1°F (20.6°C). In July, the average heat index is calculated to be a blistering 109.4°F (43°C). Weather in July »

Weather in August

The last month of the summer, August, is another hot month in McIllwain, Tennessee, with an average temperature ranging between max 88.3°F (31.3°C) and min 67.6°F (19.8°C). The arrival of August denotes a barely perceptible change in the average high-temperatures to a still tropical 88.3°F (31.3°C) from July's 89.6°F (32°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a warm month in McIllwain, Tennessee, with an average temperature varying between 62.4°F (16.9°C) and 82.8°F (28.2°C). September's onset brings a negligible change in high-temperatures, falling from a tropical 88.3°F (31.3°C) in August to a moderately hot 82.8°F (28.2°C). Weather in September »

Weather in October

October, like September, is another pleasant autumn month in McIllwain, Tennessee, with an average temperature fluctuating between 70.3°F (21.3°C) and 50.9°F (10.5°C). Onset of October comes with a temperature decline, the average high falling from a warm 82.8°F (28.2°C) in September to a pleasant 70.3°F (21.3°C). Weather in October »

Weather in November

The last month of the autumn, November, is another refreshing month in McIllwain, Tennessee, with temperature in the range of an average high of 57.2°F (14°C) and an average low of 41.2°F (5.1°C). November comes with a drop in the average high-temperature, falling from October's agreeable 70.3°F (21.3°C) to a refreshing 57.2°F (14°C). Weather in November »

Weather in December

The first month of the winter, December, is still a chilly month in McIllwain, Tennessee, with an average temperature fluctuating between 48.7°F (9.3°C) and 36°F (2.2°C). McIllwain's progression into December involves a gentle drop in the average high-temperature, from a refreshing 57.2°F (14°C) in November to a chilly 48.7°F (9.3°C). Weather in December »
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Frequently asked questions

What is the coldest time of year in McIllwain?

McIllwain's coldest month, January, generally records average temperatures ranging from a high of 45°F (7.2°C) to a low of 30.7°F (-0.7°C).

How many days does it rain in McIllwain?

In McIllwain, during the entire year, the rain falls for 115.4 days and collects up to 12.32" (313mm) of precipitation.

When does it snow in McIllwain?

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

How much does it snow in McIllwain?

Throughout the year, in McIllwain, Tennessee, there are 6.2 snowfall days, and 0.94" (24mm) of snow is accumulated.

What is the month with the least sunshine in McIllwain?

With an average of 4.5h of sunshine, February has the least sunshine of the year in McIllwain.

What are the most humid months in McIllwain?

March and December, with an average relative humidity of 79%, are most humid months in McIllwain.

What is the snowiest month in McIllwain?

The month with the most snowfall in McIllwain, Tennessee, is March, when snow falls for 0.9 days and typically aggregates up to 0.28" (7mm) of snow.

When is Daylight Saving Time (DST) in McIllwain?

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

In McIllwain, Tennessee, snow does not fall in April through October.

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

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

When are the longest days in McIllwain?

June has the longest days of the year, with an average of 14h and 36min of daylight.

What month has the most sunshine in McIllwain?

With an average of 10.3h of sunshine, June has the most sunshine of the year.

What is the hottest time of year in McIllwain?

July, characterized by an average high temperature of 89.6°F (32°C) and a low temperature of 69.1°F (20.6°C), is generally the warmest month in McIllwain, Tennessee.

What is the wettest month in McIllwain?

The month with the most rainfall in McIllwain is July, when the rain falls for 14 days and typically aggregates up to 1.5" (38mm) of precipitation.

What is the driest month in McIllwain?

September is the month with the least rainfall in McIllwain. Rain falls for 8 days and accumulates 0.35" (9mm) of precipitation.

What is the least humid month in McIllwain?

October is the least humid month in McIllwain, Tennessee, with an average relative humidity of 73%.

What is the month with the shortest days in McIllwain?

The month with the shortest days in McIllwain is December, with an average of 9h and 48min of daylight.

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

The month with the lowest UV index in McIllwain is December, with an average maximum UV index of 2.

Average pressure
McIllwain, TN

Average pressure - McIllwain, TN

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

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Average wind speed
McIllwain, TN

Average wind speed - McIllwain, TN

The windiest months (with the highest average wind speed) are January, February and April (8.1mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).

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Average humidity
McIllwain, TN

Average humidity - McIllwain, TN

The months with the highest relative humidity are March and December (79%).
The month with the lowest relative humidity is October (73%).

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Average rainfall
McIllwain, TN

Average rainfall - McIllwain, TN

The wettest month (with the highest rainfall) is July (1.5").
The driest month (with the least rainfall) is September (0.35").

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Average rainfall days
McIllwain, TN

Average rainfall days - McIllwain, TN

The month with the highest number of rainy days is July (14 days).
The month with the least rainy days is November (6.1 days).

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Average snowfall
McIllwain, TN

Average snowfall - McIllwain, TN

The month with the highest snowfall is March (0.28").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days
McIllwain, TN

Average snowfall days - McIllwain, TN

The month with the highest number of snowfall days is January (1.9 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).

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Average daylight / Average sunshine
McIllwain, TN

Average daylight / Average sunshine - McIllwain, TN

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

The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).

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Average sunshine days
McIllwain, TN

Average sunshine days - McIllwain, TN

The month with the most sunshine days is November (22.3 days).
The month with the least sunshine days is July (15.7 days).

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Average visibility
McIllwain, TN

Average visibility - McIllwain, TN

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

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McIllwain, Tennessee, USA

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