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 stands out as Jamestown's coldest month, with an average high-temperature of 45.1°F (7.3°C) and a low-temperature of 31.5°F (-0.3°C).Humidity
In Jamestown, the average relative humidity in January is 75%.Rainfall
In Jamestown, in January, during 9 rainfall days, 1.5" (38mm) of precipitation is typically accumulated. Throughout the year, in Jamestown, there are 148.7 rainfall days, and 20.35" (517mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through March, November and December. In Jamestown, during January, snow falls for 3.1 days and regularly aggregates up to 0.63" (16mm) of snow. Throughout the year, there are 8.3 snowfall days, and 2.52" (64mm) of snow is accumulated.Daylight
In January, the average length of the day is 9h and 57min.On the first day of the month, sunrise is at 7:20 am and sunset at 5:00 pm. On the last day of January, sunrise is at 7:10 am and sunset at 5:30 pm EST.
Sunshine
In Jamestown, Virginia, the average sunshine in January is 5.5h.UV index
The months with the lowest UV index in Jamestown, Virginia, are January and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: A daily high UV index of 2 in January leads to these guidelines:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Enhance your sun protection with tightly woven, yet airy clothing. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Frequently asked questions
What is the coldest time of year in Jamestown?
What are the temperatures in Jamestown in January?
What is the average humidity in January in Jamestown?
How much does it rain in Jamestown in January?
How many days does it snow in January in Jamestown?
What is the average length of the day in January in Jamestown?
When are sunrise and sunset in January in Jamestown?
How many hours of sunshine does Jamestown have in January?
When is the lowest UV index in Jamestown?
What is the UV index reading in January in Jamestown?
Average temperature in January
Jamestown, VA
- Average high temperature in January: 45.1°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 (45.1°F).
- Average low temperature in January: 31.5°F
The month with the highest average low temperature is July (71.1°F).
The coldest month (with the lowest average low temperature) is January (31.5°F).
Average pressure in January
Jamestown, 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
Jamestown, VA
- Average wind speed in January: 7.7mph
The windiest month (with the highest average wind speed) is April (8.6mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).
Average humidity in January
Jamestown, VA
- Average humidity in January: 75%
The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is July (73%).
Average rainfall in January
Jamestown, VA
- Average rainfall in January: 1.5"
The wettest month (with the highest rainfall) is August (2.36").
The driest months (with the least rainfall) are October and December (1.38").
Average rainfall days in January
Jamestown, VA
- Average rainfall days in January: 9 days
The month with the highest number of rainy days is August (16.3 days).
The month with the least rainy days is November (8.5 days).
Average snowfall in January
Jamestown, VA
- Average snowfall in January: 0.63"
The month with the highest snowfall is February (0.87").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in January
Jamestown, VA
- Average snowfall days in January: 3.1 days
The month with the highest number of snowfall days is January (3.1 days).
The months with the least snowfall days are May, June, July, August and October (0 days).
Average daylight in January /
Average sunshine in January
Jamestown, 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 42min).
- Average sunshine in January: 5h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 18min).
Average sunshine days in January
Jamestown, VA
- Average sunshine days in January: 18.3 days
The months with the most sunshine days are October and November (19.7 days).
The month with the least sunshine days is August (12.2 days).
Average UV index in January
Jamestown, VA
- Average UV index in January: 2
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in January
Jamestown, VA
- Average cloud cover in January: 40
The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in January
Jamestown, VA
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Jamestown, Virginia, USA
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