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 month of January, characterized by an average high of 44.6°F (7°C) and a low of 29.7°F (-1.3°C), is recognized as the coldest.Humidity
The average relative humidity in January is 73%.Rainfall
In January, the rain falls for 9.8 days. Throughout January, 2.4" (61mm) of precipitation is accumulated. Throughout the year, there are 154.5 rainfall days, and 30.35" (771mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, November and December. The month with the most snowfall is January, when snow falls for 3.3 days and typically aggregates up to 2.05" (52mm) of snow.Daylight
The average length of the day in January is 9h and 55min.On the first day of the month, sunrise is at 7:24 am and sunset at 5:01 pm. On the last day of January, sunrise is at 7:14 am and sunset at 5:31 pm EST.
Sunshine
In January, the average sunshine is 5.4h.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum UV index, 2 during January, leads to the following recommendations:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year?
How cold is it in January?
What is the average humidity in January?
How much does it rain in January?
When does it snow the most?
How many days does it snow in January?
How many hours of daylight does Mechanicsville have in January?
When is the sunrise / sunset in January?
How long on average sun shines in January in Mechanicsville?
When is the lowest UV index?
How high is the UV index in January?
Average temperature in January
Mechanicsville, VA
- Average high temperature in January: 44.6°F
The warmest month (with the highest average high temperature) is July (90.9°F).
The month with the lowest average high temperature is January (44.6°F).
- Average low temperature in January: 29.7°F
The month with the highest average low temperature is July (70.2°F).
The coldest month (with the lowest average low temperature) is January (29.7°F).
Average pressure in January
Mechanicsville, VA
- Average pressure in January: 30.12"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
Mechanicsville, VA
- Average wind speed in January: 6.7mph
The windiest month (with the highest average wind speed) is April (7.5mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in January
Mechanicsville, 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 (68%).
Average rainfall in January
Mechanicsville, VA
- Average rainfall in January: 2.4"
The wettest month (with the highest rainfall) is August (2.87").
The driest month (with the least rainfall) is September (1.73").
Average rainfall days in January
Mechanicsville, VA
- Average rainfall days in January: 9.8 days
The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is November (9.7 days).
Average snowfall in January
Mechanicsville, VA
- Average snowfall in January: 2.05"
The month with the highest snowfall is January (2.05").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Mechanicsville, VA
- Average snowfall days in January: 3.3 days
The month with the highest number of snowfall days is January (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
Mechanicsville, 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 2min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).
Average sunshine days in January
Mechanicsville, VA
- Average sunshine days in January: 18.6 days
The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is May (12.1 days).
Average UV index in January
Mechanicsville, VA
- Average UV index in January: 2
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in January
Mechanicsville, VA
- Average cloud cover in January: 43
The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in January
Mechanicsville, VA
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October and November (6mi).
The months with the lowest visibility are May and December (5mi).
Mechanicsville, Virginia, USA
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