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
In Rock Castle, January is the coldest month, with temperatures averaging a high of 43.9°F (6.6°C) and a low of 29.7°F (-1.3°C).Humidity
The average relative humidity in January is 77%.Rainfall
In January, the rain falls for 12.2 days. Throughout January, 2.87" (73mm) of precipitation is accumulated. Throughout the year, in Rock Castle, there are 170.4 rainfall days, and 37.99" (965mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, November and December. In January, in Rock Castle, Tennessee, it is snowing for 3.9 days. Throughout January, 1.34" (34mm) of snow is accumulated. In Rock Castle, during the entire year, snow falls for 13.4 days and aggregates up to 4.29" (109mm) of snow.Daylight
In January, the average length of the day is 10h and 2min.On the first day of January in Rock Castle, sunrise is at 6:53 am and sunset at 4:39 pm. On the last day of the month, sunrise is at 6:44 am and sunset at 5:07 pm CST.
Sunshine
In January, the average sunshine in Rock Castle is 4.6h.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 minimal health hazard from exposure to the Sun's UV rays for the ordinary person.Note: The daily high UV index of 2 during January translates into the following recommendations:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Enhance your sun protection with tightly woven, yet airy clothing. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Frequently asked questions
What time of the year is the coldest in Rock Castle?
How cold is January in Rock Castle?
What is the average humidity in January in Rock Castle?
How many days does it rain in January in Rock Castle?
How many days does it snow in January in Rock Castle?
How many hours of daylight does Rock Castle have in January?
When are sunrise and sunset in January in Rock Castle?
How many hours of sunshine does Rock Castle have in January?
What is the month with the lowest UV index in Rock Castle?
How high is the UV index in January in Rock Castle?
Average temperature in January
Rock Castle, TN
- Average high temperature in January: 43.9°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (43.9°F).
- Average low temperature in January: 29.7°F
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (29.7°F).
Average pressure in January
Rock Castle, 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 (29.97"Hg).
Average wind speed in January
Rock Castle, TN
- Average wind speed in January: 7mph
The windiest month (with the highest average wind speed) is February (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in January
Rock Castle, 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 (75%).
Average rainfall in January
Rock Castle, TN
- Average rainfall in January: 2.87"
The wettest month (with the highest rainfall) is February (4.09").
The driest month (with the least rainfall) is September (1.97").
Average rainfall days in January
Rock Castle, TN
- Average rainfall days in January: 12.2 days
The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is November (9.5 days).
Average snowfall in January
Rock Castle, TN
- Average snowfall in January: 1.34"
The month with the highest snowfall is February (1.61").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Rock Castle, TN
- Average snowfall days in January: 3.9 days
The month with the highest number of snowfall days is January (3.9 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
Rock Castle, 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 48min).
- Average sunshine in January: 4h and 4min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).
Average sunshine days in January
Rock Castle, TN
- Average sunshine days in January: 16.5 days
The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is July (10.3 days).
Average UV index in January
Rock Castle, 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
Rock Castle, TN
- Average cloud cover in January: 52
The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is June (Cloud cover 29).
Average visibility in January
Rock Castle, TN
- Average visibility in January: 5mi
The months with the highest visibility are February, April, June, October, November and December (6mi).
The months with the lowest visibility are January, March, May, July, August and September (5mi).
Rock Castle, Tennessee, USA
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