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 Rileyville, the month of January is known for its lowest average temperatures, reaching a high of 38.7°F (3.7°C) and a low of 23.9°F (-4.5°C).Humidity
In Rileyville, the average relative humidity in January is 75%.Rainfall
January is the month with the least rainfall. Rain falls for 6.8 days and accumulates 0.94" (24mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Rileyville, in January, during 5 snowfall days, 2.4" (61mm) of snow is typically accumulated. In Rileyville, during the entire year, snow falls for 17.4 days and aggregates up to 9.72" (247mm) of snow.Daylight
In January, the average length of the day is 9h and 49min.On the first day of the month, sunrise is at 7:31 am and sunset at 5:02 pm. On the last day of January, sunrise is at 7:20 am and sunset at 5:33 pm EST.
Sunshine
In January, the average sunshine is 5.2h.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 value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for the average person.Note: In January, the maximum UV index of 2 suggests these recommendations:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest?
Is January cold?
What is the average humidity in January?
What is the driest month?
How much does it rain in Rileyville in January?
How much does it snow in January?
How many hours of daylight does Rileyville have in January?
What time are sunrise and sunset in January?
How many hours of sunshine does Rileyville have in January?
When is the lowest UV index?
What is the UV index intensity in January?
Average temperature in January
Rileyville, VA
- Average high temperature in January: 38.7°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (38.7°F).
- Average low temperature in January: 23.9°F
The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (23.9°F).
Average pressure in January
Rileyville, 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
Rileyville, VA
- Average wind speed in January: 6.4mph
The windiest months (with the highest average wind speed) are February and March (6.7mph).
The calmest month (with the lowest average wind speed) is August (4.1mph).
Average humidity in January
Rileyville, VA
- Average humidity in January: 75%
The month with the highest relative humidity is October (79%).
The months with the lowest relative humidity are April and July (74%).
Average rainfall in January
Rileyville, VA
- Average rainfall in January: 0.94"
The wettest month (with the highest rainfall) is May (2.64").
The driest month (with the least rainfall) is January (0.94").
Average rainfall days in January
Rileyville, VA
- Average rainfall days in January: 6.8 days
The month with the highest number of rainy days is August (17.8 days).
The month with the least rainy days is January (6.8 days).
Average snowfall in January
Rileyville, VA
- Average snowfall in January: 2.4"
The month with the highest snowfall is March (2.56").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Rileyville, VA
- Average snowfall days in January: 5 days
The month with the highest number of snowfall days is January (5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Rileyville, 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 30min).
- Average sunshine in January: 5h and 1min
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 6min).
Average sunshine days in January
Rileyville, VA
- Average sunshine days in January: 20.5 days
The month with the most sunshine days is November (20.9 days).
The month with the least sunshine days is August (11.4 days).
Average UV index in January
Rileyville, 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
Rileyville, VA
- Average cloud cover in January: 44
The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in January
Rileyville, VA
- Average visibility in January: 6mi
The months with the highest visibility are January, February, April, June, July, August and November (6mi).
The months with the lowest visibility are March, May, September, October and December (5mi).
Rileyville, Virginia, USA
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