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
With average high temperatures of 43.7°F (6.5°C) and lows of 29.1°F (-1.6°C), January is the coldest month.Humidity
In Postoak, the average relative humidity in January is 77%.Rainfall
In January, the rain falls for 12.8 days. Throughout January, 3.03" (77mm) of precipitation is accumulated. Throughout the year, there are 176.6 rainfall days, and 39.41" (1001mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall in Postoak. In Postoak, in January, during 3.3 snowfall days, 0.87" (22mm) of snow is typically accumulated. In Postoak, during the entire year, snow falls for 11.6 days and aggregates up to 3.15" (80mm) of snow.Daylight
In January, the average length of the day is 10h and 3min.On the first day of January, sunrise is at 7:48 am and sunset at 5:35 pm. On the last day of the month, sunrise is at 7:39 am and sunset at 6:04 pm EST.
Sunshine
January and December, with an average of 4.9h of sunshine, are months with the least 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 health risk from exposure to the Sun's UV rays for ordinary individuals.Note: In January, the maximum UV index of 2 transforms into these recommendations:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest?
Is January cold?
What is the average humidity in January?
How much does it rain in January?
How many days does it snow in January?
How many hours of daylight does Postoak have in January?
What time are sunrise and sunset in January?
What are the months with the least sunshine?
How many hours of sunshine does Postoak have in January?
What are the months with the lowest UV index?
What is the UV index intensity in January?
Average temperature in January
Postoak, TN
- Average high temperature in January: 43.7°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 (43.7°F).
- Average low temperature in January: 29.1°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (29.1°F).
Average pressure in January
Postoak, 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
Postoak, TN
- Average wind speed in January: 6.1mph
The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).
Average humidity in January
Postoak, TN
- Average humidity in January: 77%
The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is November (76%).
Average rainfall in January
Postoak, TN
- Average rainfall in January: 3.03"
The wettest month (with the highest rainfall) is July (4.29").
The driest month (with the least rainfall) is September (2.32").
Average rainfall days in January
Postoak, TN
- Average rainfall days in January: 12.8 days
The month with the highest number of rainy days is July (19.4 days).
The month with the least rainy days is November (10.7 days).
Average snowfall in January
Postoak, TN
- Average snowfall in January: 0.87"
The month with the highest snowfall is February (1.18").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Postoak, TN
- Average snowfall days in January: 3.3 days
The months with the highest number of snowfall days are January and February (3.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Postoak, TN
- Average daylight in January: 10h and 1min
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 5min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The months with the least sunshine are January and December (Average sunshine: 4h and 54min).
Average sunshine days in January
Postoak, TN
- Average sunshine days in January: 15.8 days
The months with the most sunshine days are October and November (18.5 days).
The month with the least sunshine days is July (9.4 days).
Average UV index in January
Postoak, 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
Postoak, TN
- Average cloud cover in January: 50
The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is June (Cloud cover 31).
Average visibility in January
Postoak, TN
- Average visibility in January: 5mi
The months with the highest visibility are April, June, October and November (6mi).
The months with the lowest visibility are January, February, March, May, July, August, September and December (5mi).
Postoak, Tennessee, USA
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