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
Fairfield's January weather, with an average high temperature of 40.6°F (4.8°C) and an average low temperature of 25.2°F (-3.8°C), tends to be the coldest of the year.Humidity
In Fairfield, the average relative humidity in January is 74%.Rainfall
In January, the rain falls for 9.1 days. Throughout January, 1.61" (41mm) of precipitation is accumulated. Throughout the year, there are 146.4 rainfall days, and 23.86" (606mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, November and December. In Fairfield, in January, snow falls for 3.3 days, with typically accumulated 1.77" (45mm) of snow. Throughout the year, there are 13.5 snowfall days, and 7.48" (190mm) of snow is accumulated.Daylight
The average length of the day in January is 9h and 53min.On the first day of January in Fairfield, sunrise is at 7:32 am and sunset at 5:08 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 5:38 pm EST.
Sunshine
In Fairfield, 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 value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for the ordinary person.Note: In January, the maximum UV index of 2 suggests this advice:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. Minimize direct exposure to the Sun during midday when its radiation is at its peak. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Mark this! Snow reflection can nearly double the UV radiation intensity 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?
How cold is it in January?
What is the average humidity in January?
How many days does it rain in January?
How much does it snow in January?
How many hours of daylight does Fairfield have in January?
What time are sunrise and sunset in January?
How many hours of sunshine does Fairfield have in January?
When is the lowest UV index?
How high is the UV index in January in Fairfield?
Average temperature in January
Fairfield, VA
- Average high temperature in January: 40.6°F
The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is January (40.6°F).
- Average low temperature in January: 25.2°F
The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).
Average pressure in January
Fairfield, VA
- Average pressure in January: 30.13"Hg
The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in January
Fairfield, VA
- Average wind speed in January: 6.2mph
The windiest months (with the highest average wind speed) are February and April (6.3mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).
Average humidity in January
Fairfield, VA
- Average humidity in January: 74%
The months with the highest relative humidity are May and December (78%).
The month with the lowest relative humidity is July (73%).
Average rainfall in January
Fairfield, VA
- Average rainfall in January: 1.61"
The wettest month (with the highest rainfall) is May (2.83").
The driest month (with the least rainfall) is September (1.54").
Average rainfall days in January
Fairfield, VA
- Average rainfall days in January: 9.1 days
The month with the highest number of rainy days is May (19.2 days).
The month with the least rainy days is November (7.9 days).
Average snowfall in January
Fairfield, VA
- Average snowfall in January: 1.77"
The month with the highest snowfall is March (2.2").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Fairfield, VA
- Average snowfall days in January: 3.3 days
The month with the highest number of snowfall days is February (4 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
Fairfield, 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 42min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in January
Fairfield, VA
- Average sunshine days in January: 19.7 days
The month with the most sunshine days is November (21.4 days).
The month with the least sunshine days is May (9.8 days).
Average UV index in January
Fairfield, 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
Fairfield, VA
- Average cloud cover in January: 42
The month with the most cloud cover is March (Cloud cover 45).
The months with the least cloud cover are June and July (Cloud cover 30).
Average visibility in January
Fairfield, VA
- Average visibility in January: 5mi
The months with the highest visibility are June, July and November (6mi).
The months with the lowest visibility are January, February, March, April, May, August, September, October and December (5mi).
Fairfield, Virginia, USA
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