January weather forecastCharlestown, NH
January
Weather in January
January, like December, is another subzero cold winter month in Charlestown, New Hampshire, with an average temperature ranging between max 27.5°F (-2.5°C) and min 14.5°F (-9.7°C).Temperature
During the coldest month, January, temperatures average a high of 27.5°F (-2.5°C) and a low of 14.5°F (-9.7°C).Humidity
In January, the average relative humidity in Charlestown is 84%.Rainfall
January and March are months with the least rain in Charlestown, New Hampshire, when the rain falls for 4.5 days and typically aggregates up to 1.06" (27mm) of rain.Snowfall
January through May, October through December are months with snowfall. In Charlestown, New Hampshire, during January, snow falls for 7.5 days and regularly aggregates up to 3.98" (101mm) of snow. Throughout the year, in Charlestown, there are 31 snowfall days, and 16.22" (412mm) of snow is accumulated.Daylight
In Charlestown, the average length of the day in January is 9h and 25min.On the first day of the month, sunrise is at 7:21 am and sunset at 4:24 pm. On the last day of January, sunrise is at 7:06 am and sunset at 4:59 pm EST.
Sunshine
In Charlestown, the average sunshine in January is 4.8h.UV index
The months with the lowest UV index in Charlestown are January through March, October through December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for the average person.Note: A daily maximum UV index of 2 in January translates into the following instructions:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Boost your sun resistance with garments that are densely woven yet spacious. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Charlestown, NH
- Average high temperature in January: 27.5°F
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (27.5°F).
- Average low temperature in January: 14.5°F
The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is January (14.5°F).
Average pressure in January
Charlestown, NH
- Average pressure in January: 30.02"Hg
The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in January
Charlestown, NH
- Average wind speed in January: 7.6mph
The windiest months (with the highest average wind speed) are January, February and March (7.6mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in January
Charlestown, NH
- Average humidity in January: 84%
The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is April (74%).
Average rainfall in January
Charlestown, NH
- Average rainfall in January: 1.06"
The wettest month (with the highest rainfall) is October (1.77").
The driest months (with the least rainfall) are January and March (1.06").
Average rainfall days in January
Charlestown, NH
- Average rainfall days in January: 4.5 days
The month with the highest number of rainy days is July (12.1 days).
The month with the least rainy days is January (4.5 days).
Average snowfall in January
Charlestown, NH
- Average snowfall in January: 3.98"
The month with the highest snowfall is February (4.69").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Charlestown, NH
- Average snowfall days in January: 7.5 days
The month with the highest number of snowfall days is February (7.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Charlestown, NH
- Average daylight in January: 9h and 24min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in January: 4h and 48min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).
Average sunshine days in January
Charlestown, NH
- Average sunshine days in January: 20.3 days
The month with the most sunshine days is November (20.5 days).
The months with the least sunshine days are April and June (16 days).
Average UV index in January
Charlestown, NH
- Average UV index in January: 2
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in January
Charlestown, NH
- Average cloud cover in January: 49
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in January
Charlestown, NH
- Average visibility in January: 5mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).
