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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, like December, in Dean, Tennessee, is an icy winter month, with an average temperature fluctuating between 42.3°F (5.7°C) and 27.7°F (-2.4°C). During the coldest month, January, temperatures average a high of 42.3°F (5.7°C) and a low of 27.7°F (-2.4°C). Weather in January »
Weather in February
February, the last month of the winter in Dean, is a chilly month, with an average temperature varying between 31.5°F (-0.3°C) and 47.3°F (8.5°C). February observes an average high-temperature of a chilly 47.3°F (8.5°C), marking an insignificant difference from January's 42.3°F (5.7°C). Weather in February »
Weather in March
March, the first month of the spring in Dean, is a moderate month, with an average temperature fluctuating between 37.9°F (3.3°C) and 55.6°F (13.1°C). March brings a slight increase in the average high-temperature, progressing from a chilly 47.3°F (8.5°C) in February to a moderate 55.6°F (13.1°C). Weather in March »
Weather in April
April in Dean, Tennessee, is an enjoyable spring month, with temperature in the range of an average high of 66.7°F (19.3°C) and an average low of 46.2°F (7.9°C). Dean's transition into April is marked by a rise in the average high-temperature, advancing from a moderate 55.6°F (13.1°C) in March to a still refreshing 66.7°F (19.3°C). Weather in April »
Weather in May
May, the last month of the spring in Dean, is a warm month, with temperature in the range of an average low of 54.3°F (12.4°C) and an average high of 76.1°F (24.5°C). The beginning of May signals a rise in the average high-temperature, moving from a refreshing 66.7°F (19.3°C) in April to a warm 76.1°F (24.5°C). Weather in May »
Weather in June
June, the first month of the summer in Dean, is also a moderately hot month, with an average temperature fluctuating between 83.3°F (28.5°C) and 60.4°F (15.8°C). The average high-temperature mildly increases in June, edging from 76.1°F (24.5°C) in May to a still moderately hot 83.3°F (28.5°C). Weather in June »
Weather in July
July is a hot summer month in Dean, Tennessee, with temperature in the range of an average low of 63.7°F (17.6°C) and an average high of 86°F (30°C). Dean's temperatures tend to reach their peak averages in July, with a high of 86°F (30°C) and a low of 63.7°F (17.6°C). In July, the average heat index is estimated at a very hot 98.6°F (37°C). Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Dean, Tennessee, with an average temperature varying between 61.9°F (16.6°C) and 84.9°F (29.4°C). August's onset records a minor alteration in the average high-temperature to a moderately hot 84.9°F (29.4°C) from July's 86°F (30°C). Weather in August »
Weather in September
The first month of the autumn, September, is still a warm month in Dean, Tennessee, with an average temperature fluctuating between 57.2°F (14°C) and 79.2°F (26.2°C). With the onset of September, the average high-temperature subtly recedes from August's 84.9°F (29.4°C) to a still warm 79.2°F (26.2°C). Weather in September »
Weather in October
October, the same as September, is another refreshing autumn month in Dean, Tennessee, with an average temperature fluctuating between 46.9°F (8.3°C) and 67.1°F (19.5°C). October brings a minor decrease, with the average high-temperature reducing from a moderately hot 79.2°F (26.2°C) in September to a refreshing 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 Dean, Tennessee, with an average temperature ranging between max 54.7°F (12.6°C) and min 37.2°F (2.9°C). In Dean, the average high-temperature in November decreases from a comfortable 67.1°F (19.5°C) in October to a cool 54.7°F (12.6°C). Weather in November »
Weather in December
The first month of the winter, December, is still a chilly month in Dean, Tennessee, with temperature in the range of an average high of 46.9°F (8.3°C) and an average low of 33.4°F (0.8°C). December's arrival coincides with a soft drop in the average high-temperature, subtly decreasing from November's fresh 54.7°F (12.6°C) to a frosty 46.9°F (8.3°C). Weather in December »
Updated: Jun 30, 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 are the coldest months?
January, having an average high-temperature of 42.3°F (5.7°C) and an average low-temperature of 27.7°F (-2.4°C), is the coldest month.
How many days does it rain in Dean?
Throughout the year, there are 167 rainfall days, and 33.62" (854mm) of precipitation is accumulated.
When does it snow?
Months with snowfall are January through April, November and December.
How many days does it snow?
In Dean, during the entire year, snow falls for 17.6 days and aggregates up to 6.02" (153mm) of snow.
What is the month with the least sunshine?
January has the least sunshine of the year, with an average of 4.5h of sunshine.
What is the month with the lowest UV index?
The months with the lowest UV index are January, February and December, with an average maximum UV index of 2.
What are the most humid months?
February and December, with an average relative humidity of 81%, are most humid months.
What is the rainiest month in Dean?
The month with the most rainfall is February, when the rain falls for 11.7 days and typically aggregates up to 3.94" (100mm) of precipitation.
What is the snowiest month?
February is the month with the most snowfall. Snow falls for 4.8 days and accumulates 2.01" (51mm) 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 EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.
When it does not snow?
May 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?
June has the longest days of the year, with an average of 14h and 36min of daylight.
What month has the most sunshine?
With an average of 10.3h of sunshine, June has the most sunshine of the year.
What month is the hottest?
The warmest period tends to be July, when average temperatures fluctuate between a high of 86°F (30°C) and a low of 63.7°F (17.6°C).
What is the least humid month?
With an average relative humidity of 76%, August is the least humid month.
What is the driest month?
The month with the least rainfall is September, when the rain falls for 12.6 days and typically collects 1.89" (48mm) of precipitation.
What is the month with the shortest days?
December has the shortest days of the year, with an average of 9h and 42min of daylight.
Average temperature
Dean, TN
The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is January (42.3°F).
The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (27.7°F).
Average pressure
Dean, TN
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
29.99"Hg - Average pressure in May:
30.01"Hg - Average pressure in June:
29.98"Hg
- Average pressure in July:
30.01"Hg - Average pressure in August:
30.01"Hg - Average pressure in September:
30.04"Hg - Average pressure in October:
30.06"Hg - Average pressure in November:
30.16"Hg - Average pressure in December:
30.14"Hg
The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed
Dean, TN
- Average wind speed in January:
5.7mph - Average wind speed in February:
5.8mph - Average wind speed in March:
5.8mph - Average wind speed in April:
6.2mph - Average wind speed in May:
5mph - Average wind speed in June:
4.3mph
- Average wind speed in July:
3.7mph - Average wind speed in August:
3.5mph - Average wind speed in September:
3.7mph - Average wind speed in October:
4.5mph - Average wind speed in November:
4.8mph - Average wind speed in December:
5.2mph
The windiest month (with the highest average wind speed) is April (6.2mph).
The calmest month (with the lowest average wind speed) is August (3.5mph).
Average humidity
Dean, TN
The months with the highest relative humidity are February and December (81%).
The month with the lowest relative humidity is August (76%).
Average rainfall
Dean, TN
- Average rainfall in January:
2.6" - Average rainfall in February:
3.94" - Average rainfall in March:
2.6" - Average rainfall in April:
3.03" - Average rainfall in May:
2.83" - Average rainfall in June:
3.15"
- Average rainfall in July:
3.62" - Average rainfall in August:
2.64" - Average rainfall in September:
1.89" - Average rainfall in October:
2.32" - Average rainfall in November:
2.17" - Average rainfall in December:
2.83"
The wettest month (with the highest rainfall) is February (3.94").
The driest month (with the least rainfall) is September (1.89").
Average rainfall days
Dean, TN
- Average rainfall days in January:
11 days - Average rainfall days in February:
11.7 days - Average rainfall days in March:
14.9 days - Average rainfall days in April:
14.7 days - Average rainfall days in May:
17.7 days - Average rainfall days in June:
15.8 days
- Average rainfall days in July:
19.3 days - Average rainfall days in August:
16.2 days - Average rainfall days in September:
12.6 days - Average rainfall days in October:
11.1 days - Average rainfall days in November:
9.4 days - Average rainfall days in December:
12.6 days
The month with the highest number of rainy days is July (19.3 days).
The month with the least rainy days is November (9.4 days).
Average snowfall
Dean, TN
The month with the highest snowfall is February (2.01").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Dean, TN
- Average snowfall days in January:
5.5 days - Average snowfall days in February:
4.8 days - Average snowfall days in March:
2.3 days - Average snowfall days in April:
0.3 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:
1.5 days - Average snowfall days in December:
3.1 days
The month with the highest number of snowfall days is January (5.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Dean, TN
- Average daylight in January:
10h and 0min - 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 1min - Average daylight in November:
10h and 1min - Average daylight in December:
9h and 4min
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 42min).
- Average sunshine in January:
4h and 3min - Average sunshine in February:
5h and 3min - Average sunshine in March:
6h and 1min - Average sunshine in April:
8h and 0min - Average sunshine in May:
9h and 2min - Average sunshine in June:
10h and 2min
- Average sunshine in July:
10h and 0min - Average sunshine in August:
9h and 4min - Average sunshine in September:
8h and 2min - Average sunshine in October:
6h and 4min - Average sunshine in November:
5h and 4min - Average sunshine in December:
4h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days
Dean, TN
- Average sunshine days in January:
15.8 days - Average sunshine days in February:
13 days - Average sunshine days in March:
12.9 days - Average sunshine days in April:
13.3 days - Average sunshine days in May:
11.4 days - Average sunshine days in June:
11.5 days
- Average sunshine days in July:
10.1 days - Average sunshine days in August:
13.2 days - Average sunshine days in September:
15.5 days - Average sunshine days in October:
18.8 days - Average sunshine days in November:
18.3 days - Average sunshine days in December:
15.9 days
The month with the most sunshine days is October (18.8 days).
The month with the least sunshine days is July (10.1 days).
Average UV index
Dean, TN
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, February and December (UV index 2).
Average cloud cover
Dean, TN
The month with the most cloud cover is February (Cloud cover 56).
The months with the least cloud cover are June and August (Cloud cover 32).
Average visibility
Dean, TN
The month with the highest visibility is November (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October and December (5mi).
Dean, Tennessee, USA
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