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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, the same as December, in McIllwain, Tennessee, is another chilly winter month, with an average temperature fluctuating between 30.7°F (-0.7°C) and 45°F (7.2°C). McIllwain's coldest month, January, registers temperatures that range from a high of 45°F (7.2°C) to a low of 30.7°F (-0.7°C). Weather in January »
Weather in February
February, the last month of the winter in McIllwain, is another chilly month, with an average temperature varying between 35.1°F (1.7°C) and 49.5°F (9.7°C). The arrival of February denotes a barely perceptible change in the average high-temperatures to a still chilly 49.5°F (9.7°C) from January's 45°F (7.2°C). Weather in February »
Weather in March
The first month of the spring, March, is a moderate month in McIllwain, Tennessee, with an average temperature ranging between max 59.2°F (15.1°C) and min 42.3°F (5.7°C). As McIllwain transitions into March, a rise in the average high-temperature is observed, moving from a frosty 49.5°F (9.7°C) in February to a refreshing 59.2°F (15.1°C). Weather in March »
Weather in April
April is a pleasant spring month in McIllwain, Tennessee, with an average temperature fluctuating between 69.4°F (20.8°C) and 50.5°F (10.3°C). In McIllwain, the average high-temperature in April increases from a mild 59.2°F (15.1°C) in March to a pleasant 69.4°F (20.8°C). Weather in April »
Weather in May
May, the last month of the spring in McIllwain, is a moderately hot month, with an average temperature varying between 78.6°F (25.9°C) and 59°F (15°C). Observing a rise in May, the average high-temperature goes from April's agreeable 69.4°F (20.8°C) to a moderately hot 78.6°F (25.9°C). Weather in May »
Weather in June
The first month of the summer, June, is a tropical month in McIllwain, Tennessee, with an average temperature varying between 87.4°F (30.8°C) and 66°F (18.9°C). McIllwain in June denotes a subtle temperature transition, adjusting from an average high of a moderately hot 78.6°F (25.9°C) in May to a hot 87.4°F (30.8°C). Weather in June »
Weather in July
July, like June, is a hot summer month in McIllwain, Tennessee, with an average temperature ranging between min 69.1°F (20.6°C) and max 89.6°F (32°C). July, noted for its average high-temperature of 89.6°F (32°C) and an average low-temperature of 69.1°F (20.6°C), is considered the warmest month. The heat index in July is estimated at an extremely hot 109.4°F (43°C). Weather in July »
Weather in August
The last month of the summer, August, is also a hot month in McIllwain, Tennessee, with an average temperature fluctuating between 88.3°F (31.3°C) and 67.6°F (19.8°C). With the advent of August, McIllwain experiences an average high-temperature of a still tropical 88.3°F (31.3°C), mirroring a close resemblance to the previous month. Weather in August »
Weather in September
The first month of the autumn, September, is still a warm month in McIllwain, Tennessee, with temperature in the range of an average high of 82.8°F (28.2°C) and an average low of 62.4°F (16.9°C). The transition into September is accompanied by a slight temperature decrease, with the average high-temperature shifting from a hot 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, the same as September, in McIllwain, Tennessee, is another pleasant autumn month, with an average temperature fluctuating between 50.9°F (10.5°C) and 70.3°F (21.3°C). The shift from September to October involves a decrease in the average high-temperature, from a warm 82.8°F (28.2°C) to a pleasant 70.3°F (21.3°C). Weather in October »
Weather in November
November, the last month of the autumn in McIllwain, is also a moderate month, with an average temperature ranging between min 41.2°F (5.1°C) and max 57.2°F (14°C). November involves a decrease in temperature, down from an agreeable 70.3°F (21.3°C) in October to a moderate 57.2°F (14°C). Weather in November »
Weather in December
December, the first month of the winter in McIllwain, is also a frosty month, with temperature in the range of an average high of 48.7°F (9.3°C) and an average low of 36°F (2.2°C). December sees a slight reduction in average high-temperature, with a shift from a mild 57.2°F (14°C) in November to a frosty 48.7°F (9.3°C). Weather in December »
Updated: Aug 5, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest month?
McIllwain's coldest temperatures are experienced in January, with average high temperatures of 45°F (7.2°C) and lows of 30.7°F (-0.7°C).
How much does it rain?
Throughout the year, there are 115.4 rainfall days, and 12.32" (313mm) of precipitation is accumulated.
When does it snow?
Months with snowfall are January through March, November and December.
How much does it snow?
In McIllwain, during the entire year, snow falls for 6.2 days and aggregates up to 0.94" (24mm) of snow.
What is the month with the least sunshine?
The month with the least sunshine is February, with an average of 4.5h of sunshine.
What are the most humid months?
The months with the highest humidity are March and December, with an average relative humidity of 79%.
What is the snowiest month?
March is the month with the most snowfall. Snow falls for 0.9 days and accumulates 0.28" (7mm) of snow.
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.
When it does not snow?
April through October are months without snowfall.
What is the month with the highest UV index?
The months with the highest UV index are May through August, with an average maximum UV index of 6.
When are the longest days?
With an average of 14h and 36min of daylight, June has the longest days of the year in McIllwain.
What month has the most sunshine?
The month with the most sunshine is June, with an average of 10.3h of sunshine.
What are the warmest months?
The average temperatures reach their apex in July, averaging 89.6°F (32°C) at the high end and 69.1°F (20.6°C) at the low end.
What is the rainiest month?
The month with the most rainfall 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?
The month with the least rainfall is September, when the rain falls for 8 days and typically collects 0.35" (9mm) of precipitation.
What is the least humid month in McIllwain?
October is the least humid month, with an average relative humidity of 73%.
What is the month with the shortest days?
December has the shortest days of the year, with an average of 9h and 48min of daylight.
When is the lowest UV index?
The month with the lowest UV index is December, with an average maximum UV index of 2.
Average temperature
McIllwain, TN
The warmest month (with the highest average high temperature) is July (89.6°F).
The month with the lowest average high temperature is January (45°F).
The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (30.7°F).
Average pressure
McIllwain, TN
- Average pressure in January:
30.17"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
29.98"Hg - Average pressure in May:
29.99"Hg - Average pressure in June:
29.96"Hg
- Average pressure in July:
29.99"Hg - Average pressure in August:
29.99"Hg - Average pressure in September:
30.02"Hg - Average pressure in October:
30.06"Hg - Average pressure in November:
30.15"Hg - Average pressure in December:
30.15"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed
McIllwain, TN
- Average wind speed in January:
8.1mph - Average wind speed in February:
8.1mph - Average wind speed in March:
7.9mph - Average wind speed in April:
8.1mph - Average wind speed in May:
6.4mph - Average wind speed in June:
5.4mph
- Average wind speed in July:
4.8mph - Average wind speed in August:
4.8mph - Average wind speed in September:
5.3mph - Average wind speed in October:
6.5mph - Average wind speed in November:
7.2mph - Average wind speed in December:
7.6mph
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).
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%).
Average rainfall
McIllwain, TN
- Average rainfall in January:
0.71" - Average rainfall in February:
1.38" - Average rainfall in March:
0.98" - Average rainfall in April:
1.06" - Average rainfall in May:
1.14" - Average rainfall in June:
1.26"
The wettest month (with the highest rainfall) is July (1.5").
The driest month (with the least rainfall) is September (0.35").
Average rainfall days
McIllwain, TN
- Average rainfall days in January:
7.3 days - Average rainfall days in February:
8.8 days - Average rainfall days in March:
10.6 days - Average rainfall days in April:
10.2 days - Average rainfall days in May:
12.5 days - Average rainfall days in June:
10.8 days
- Average rainfall days in July:
14 days - Average rainfall days in August:
10.8 days - Average rainfall days in September:
8 days - Average rainfall days in October:
8.1 days - Average rainfall days in November:
6.1 days - Average rainfall days in December:
8.2 days
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).
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").
Average snowfall days
McIllwain, TN
- Average snowfall days in January:
1.9 days - Average snowfall days in February:
1.6 days - Average snowfall days in March:
0.9 days - Average snowfall days in April:
0 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0.1 days - Average snowfall days in November:
0.5 days - Average snowfall days in December:
1.2 days
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).
Average daylight / Average sunshine
McIllwain, TN
- Average daylight in January:
10h and 1min - Average daylight in February:
10h and 5min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 1min - Average daylight in May:
14h and 1min - Average daylight in June:
14h and 4min
- Average daylight in July:
14h and 2min - Average daylight in August:
13h and 3min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 2min - Average daylight in November:
10h and 2min - Average daylight in December:
9h and 5min
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).
- Average sunshine in January:
4h and 4min - Average sunshine in February:
4h and 3min - Average sunshine in March:
5h and 5min - Average sunshine in April:
8h and 5min - Average sunshine in May:
9h and 1min - Average sunshine in June:
10h and 2min
- Average sunshine in July:
10h and 1min - Average sunshine in August:
10h and 0min - Average sunshine in September:
8h and 5min - Average sunshine in October:
6h and 4min - Average sunshine in November:
5h and 4min - Average sunshine in December:
4h and 4min
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).
Average sunshine days
McIllwain, TN
- Average sunshine days in January:
21.2 days - Average sunshine days in February:
17.1 days - Average sunshine days in March:
17.5 days - Average sunshine days in April:
18.7 days - Average sunshine days in May:
16.1 days - Average sunshine days in June:
16.4 days
- Average sunshine days in July:
15.7 days - Average sunshine days in August:
18 days - Average sunshine days in September:
20.7 days - Average sunshine days in October:
22 days - Average sunshine days in November:
22.3 days - Average sunshine days in December:
20.4 days
The month with the most sunshine days is November (22.3 days).
The month with the least sunshine days is July (15.7 days).
Average UV index
McIllwain, TN
The months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 2).
Average cloud cover
McIllwain, TN
The months with the most cloud cover are February and December (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 30).
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).
McIllwain, Tennessee, USA
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