Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
Dean's coldest temperatures are experienced in January, with average high temperatures of 42.3°F (5.7°C) and lows of 27.7°F (-2.4°C).Humidity
In January, the average relative humidity in Dean is 79%.Rainfall
In Dean, in January, during 11 rainfall days, 2.6" (66mm) of precipitation is typically accumulated. In Dean, during the entire year, the rain falls for 167 days and collects up to 33.62" (854mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. In Dean, in January, snow falls for 5.5 days, with typically accumulated 1.5" (38mm) of snow. Throughout the year, in Dean, Tennessee, there are 17.6 snowfall days, and 6.02" (153mm) of snow is accumulated.Daylight
In January, the average length of the day is 10h and 1min.On the first day of January, sunrise is at 7:48 am and sunset at 5:32 pm. On the last day of the month, sunrise is at 7:39 am and sunset at 6:02 pm EST.
Sunshine
January has the least sunshine of the year in Dean, with an average of 4.5h of sunshine.UV index
The months with the lowest UV index are January, February and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 2 during January translates into the following directions:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Enhance your sun protection with tightly woven, yet airy clothing. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Frequently asked questions
What month is the coldest in Dean?
How cold is January in Dean?
What is the average humidity in January in Dean?
How much does it rain in Dean in January?
How much does it snow in Dean in January?
How many hours of daylight does Dean have in January?
What time are sunrise and sunset in January in Dean?
What is the month with the least sunshine in Dean?
How many hours of sunshine does Dean have in January?
What is the month with the lowest UV index in Dean?
What is the UV index intensity in January in Dean?
Average temperature in January
Dean, TN
- Average high temperature in January: 42.3°F
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).
- Average low temperature in January: 27.7°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 in January
Dean, TN
- Average pressure in January: 30.16"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 in January
Dean, TN
- Average wind speed in January: 5.7mph
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 in January
Dean, TN
- Average humidity in January: 79%
The months with the highest relative humidity are February and December (81%).
The month with the lowest relative humidity is August (76%).
Average rainfall in January
Dean, TN
- Average rainfall in January: 2.6"
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 in January
Dean, TN
- Average rainfall days in January: 11 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 in January
Dean, TN
- Average snowfall in January: 1.5"
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 in January
Dean, TN
- Average snowfall days in January: 5.5 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 in January /
Average sunshine in January
Dean, TN
- Average daylight in January: 10h and 0min
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
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 in January
Dean, TN
- Average sunshine days in January: 15.8 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 in January
Dean, TN
- Average UV index in January: 2
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 in January
Dean, TN
- Average cloud cover in January: 54
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 in January
Dean, TN
- Average visibility in January: 5mi
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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