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
January, with its high-temperature average of 45.1°F (7.3°C) and a low-temperature average of 30.7°F (-0.7°C), is the coldest month.Humidity
The average relative humidity in January is 77%.Rainfall
In Black Jack, in January, it is raining for 13.3 days, with typically 3.46" (88mm) of accumulated precipitation. In Black Jack, during the entire year, the rain falls for 183 days and collects up to 43.19" (1097mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. In Black Jack, in January, during 5.2 snowfall days, 1.3" (33mm) of snow is typically accumulated. Throughout the year, in Black Jack, Tennessee, there are 17.2 snowfall days, and 4.53" (115mm) of snow is accumulated.Daylight
The average length of the day in January is 10h and 5min.On the first day of January, sunrise is at 6:53 am and sunset at 4:42 pm. On the last day of the month, sunrise is at 6:44 am and sunset at 5:10 pm CST.
Sunshine
The average sunshine in January is 4.6h.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for the average person.Note: The UV index of 2 during January leads to these advisories:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. The Sun's radiation is especially intense around midday; try to stay in shade during this period. During bright days, sunglasses that offer UVA and UVB defense are recommended. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest?
What are January temperatures?
What is the average humidity in January?
How many days does it rain in January?
How many days does it snow in January?
What is the average length of the day in January?
What time are sunrise and sunset in January?
How long on average sun shines in January?
What is the month with the lowest UV index?
What is the UV index intensity in January?
Average temperature in January
Black Jack, TN
- Average high temperature in January: 45.1°F
The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (45.1°F).
- Average low temperature in January: 30.7°F
The month with the highest average low temperature is July (67.3°F).
The coldest month (with the lowest average low temperature) is January (30.7°F).
Average pressure in January
Black Jack, TN
- Average pressure in January: 30.17"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in January
Black Jack, TN
- Average wind speed in January: 7.6mph
The windiest month (with the highest average wind speed) is February (8.1mph).
The calmest month (with the lowest average wind speed) is July (4.6mph).
Average humidity in January
Black Jack, TN
- Average humidity in January: 77%
The months with the highest relative humidity are March and December (80%).
The months with the lowest relative humidity are October and November (75%).
Average rainfall in January
Black Jack, TN
- Average rainfall in January: 3.46"
The wettest month (with the highest rainfall) is July (4.72").
The driest month (with the least rainfall) is September (2.28").
Average rainfall days in January
Black Jack, TN
- Average rainfall days in January: 13.3 days
The month with the highest number of rainy days is July (21 days).
The month with the least rainy days is November (10.3 days).
Average snowfall in January
Black Jack, TN
- Average snowfall in January: 1.3"
The month with the highest snowfall is February (1.34").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Black Jack, TN
- Average snowfall days in January: 5.2 days
The month with the highest number of snowfall days is January (5.2 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
Black Jack, TN
- Average daylight in January: 10h and 1min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in January: 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 24min).
Average sunshine days in January
Black Jack, TN
- Average sunshine days in January: 13.9 days
The month with the most sunshine days is October (17.8 days).
The month with the least sunshine days is July (8.1 days).
Average UV index in January
Black Jack, 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 and December (UV index 2).
Average cloud cover in January
Black Jack, TN
- Average cloud cover in January: 52
The month with the most cloud cover is February (Cloud cover 55).
The month with the least cloud cover is June (Cloud cover 31).
Average visibility in January
Black Jack, TN
- Average visibility in January: 5mi
The months with the highest visibility are February, March, April, June, September, October and November (6mi).
The months with the lowest visibility are January, May, July, August and December (5mi).
Black Jack, Tennessee, USA
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