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
The lowest temperatures are recorded in January, with averages reaching a high of 45.1°F (7.3°C) and a low of 30.2°F (-1°C).Humidity
In Mountcastle, the average relative humidity in January is 75%.Rainfall
In Mountcastle, during January, the rain falls for 10.2 days and regularly aggregates up to 2.6" (66mm) of precipitation. In Mountcastle, during the entire year, the rain falls for 166.1 days and collects up to 33.27" (845mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. In January, it is snowing for 3.2 days. Throughout January, 1.42" (36mm) of snow is accumulated. In Mountcastle, during the entire year, snow falls for 10.3 days and aggregates up to 5.71" (145mm) of snow.Daylight
The average length of the day in January is 9h and 56min.On the first day of January, sunrise is at 7:22 am and sunset at 5:00 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 5:30 pm EST.
Sunshine
The average sunshine in January is 5.5h.UV index
January and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for the average person.Note: A maximum daily UV index of 2 during January morphs into the following directions:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What month is the coldest?
What is the usual temperature for Mountcastle in January?
What is the average humidity in January?
How much does it rain in January?
How much does it snow in January?
What is the average length of the day in January?
When is the sunrise / sunset in January?
How long on average sun shines in January?
What are the months with the lowest UV index?
What is the UV index intensity in January?
Average temperature in January
Mountcastle, VA
- Average high temperature in January: 45.1°F
The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (45.1°F).
- Average low temperature in January: 30.2°F
The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (30.2°F).
Average pressure in January
Mountcastle, VA
- Average pressure in January: 30.11"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in January
Mountcastle, VA
- Average wind speed in January: 6.8mph
The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in January
Mountcastle, VA
- Average humidity in January: 75%
The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is July (73%).
Average rainfall in January
Mountcastle, VA
- Average rainfall in January: 2.6"
The wettest month (with the highest rainfall) is August (3.7").
The driest month (with the least rainfall) is September (2.01").
Average rainfall days in January
Mountcastle, VA
- Average rainfall days in January: 10.2 days
The month with the highest number of rainy days is May (18.4 days).
The months with the least rainy days are January and November (10.2 days).
Average snowfall in January
Mountcastle, VA
- Average snowfall in January: 1.42"
The month with the highest snowfall is February (1.57").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Mountcastle, VA
- Average snowfall days in January: 3.2 days
The month with the highest number of snowfall days is 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
Mountcastle, VA
- Average daylight in January: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in January: 5h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 5h and 12min).
Average sunshine days in January
Mountcastle, VA
- Average sunshine days in January: 17.2 days
The month with the most sunshine days is November (18.6 days).
The month with the least sunshine days is May (10.9 days).
Average UV index in January
Mountcastle, VA
- 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
Mountcastle, VA
- Average cloud cover in January: 41
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in January
Mountcastle, VA
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
Mountcastle, Virginia, USA
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