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 is Unionville's coldest month, registering average high temperatures of 41.5°F (5.3°C) and lows of 26.4°F (-3.1°C).Humidity
In January, the average relative humidity is 73%.Rainfall
The months with the least rainfall are January and September Rain falls for 10.1 days and accumulates 1.85" (47mm) of rain.Snowfall
Months with snowfall are January through April, November and December. January is the month with the most snowfall. Snow falls for 4.9 days and accumulates 2.99" (76mm) of snow.Daylight
In Unionville, the average length of the day in January is 9h and 52min.On the first day of the month, sunrise is at 7:28 am and sunset at 5:02 pm. On the last day of January, sunrise is at 7:17 am and sunset at 5:32 pm EST.
Sunshine
The average sunshine in January is 5.5h.UV index
January, February, November 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 low health risk from exposure to the Sun's UV rays for the ordinary person.Note: The daily high UV index of 2 in January translates into this advice:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. To protect against the Sun's most potent rays, avoid direct exposure around midday. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Be vigilant! The reflective nature of snow can increase 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 it cold during January?
What is the average humidity in January?
What is the driest month in Unionville?
How much does it rain in January?
What is the snowiest month in Unionville?
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?
When is the lowest UV index in Unionville?
What is the UV index reading in January?
Average temperature in January
Unionville, VA
- Average high temperature in January: 41.5°F
The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (41.5°F).
- Average low temperature in January: 26.4°F
The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (26.4°F).
Average pressure in January
Unionville, 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 (29.96"Hg).
Average wind speed in January
Unionville, VA
- Average wind speed in January: 6mph
The windiest month (with the highest average wind speed) is April (6.7mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity in January
Unionville, VA
- Average humidity in January: 73%
The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is July (71%).
Average rainfall in January
Unionville, VA
- Average rainfall in January: 1.85"
The wettest month (with the highest rainfall) is April (2.95").
The driest months (with the least rainfall) are January and September (1.85").
Average rainfall days in January
Unionville, VA
- Average rainfall days in January: 10.1 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is November (9.1 days).
Average snowfall in January
Unionville, VA
- Average snowfall in January: 2.99"
The month with the highest snowfall is January (2.99").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Unionville, VA
- Average snowfall days in January: 4.9 days
The month with the highest number of snowfall days is January (4.9 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
Unionville, VA
- Average daylight in January: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 48min).
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 42min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days in January
Unionville, VA
- Average sunshine days in January: 17.2 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is May (11.7 days).
Average UV index in January
Unionville, 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, February, November and December (UV index 2).
Average cloud cover in January
Unionville, VA
- Average cloud cover in January: 41
The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in January
Unionville, VA
- Average visibility in January: 5mi
The months with the highest visibility are February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are January, May and September (5mi).
Unionville, Virginia, USA
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