January weather forecastSunapee, NH
January
Weather in January
January is the month where winter holds a firm grip over Sunapee, New Hampshire. The average high temperature barely reaches the freezing point at 25.9°F (-3.4°C) and the nighttime low often plunges to a chilly 13.3°F (-10.4°C). White landscapes are a common sight with frequent snowfall days and a total snowfall of 8.62" (219mm). Despite the cold, one can still enjoy outdoor activities provided to wear suitable winter clothing. Sunlight is often scarce, making most days feel shorter.Temperature
The coldest month is January, with an average high-temperature of 25.9°F (-3.4°C) and an average low-temperature of 13.3°F (-10.4°C).Humidity
January and February, with an average relative humidity of 86%, are the most humid months.Rainfall
In Sunapee, in January, it is raining for 8.3 days, with typically 2.2" (56mm) of accumulated precipitation. In Sunapee, during the entire year, the rain falls for 153.2 days and collects up to 29.92" (760mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Sunapee, in January, snow falls for 13.3 days, with typically accumulated 8.62" (219mm) of snow. Throughout the year, there are 65.4 snowfall days, and 42.72" (1085mm) of snow is accumulated.Daylight
In January, the average length of the day is 9h and 24min.On the first day of January, sunrise is at 7:20 am and sunset at 4:22 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 4:58 pm EST.
Sunshine
The average sunshine in January is 4.3h.UV index
The average daily maximum UV index in January is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: In January, an average UV index of 2 transforms into the following instructions:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Sunapee, NH
- Average high temperature in January: 25.9°F
The warmest month (with the highest average high temperature) is July (78.8°F).
The month with the lowest average high temperature is January (25.9°F).
- Average low temperature in January: 13.3°F
The month with the highest average low temperature is July (57.2°F).
The coldest month (with the lowest average low temperature) is January (13.3°F).
Average pressure in January
Sunapee, NH
- Average pressure in January: 30.02"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in January
Sunapee, NH
- Average wind speed in January: 7.6mph
The windiest months (with the highest average wind speed) are January, February, March and April (7.6mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in January
Sunapee, NH
- Average humidity in January: 86%
The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is April (75%).
Average rainfall in January
Sunapee, NH
- Average rainfall in January: 2.2"
The wettest month (with the highest rainfall) is October (3.39").
The driest month (with the least rainfall) is September (2.05").
Average rainfall days in January
Sunapee, NH
- Average rainfall days in January: 8.3 days
The month with the highest number of rainy days is June (16.8 days).
The month with the least rainy days is February (7.9 days).
Average snowfall in January
Sunapee, NH
- Average snowfall in January: 8.62"
The month with the highest snowfall is February (11.18").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in January
Sunapee, NH
- Average snowfall days in January: 13.3 days
The month with the highest number of snowfall days is February (14.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Sunapee, NH
- Average daylight in January: 9h and 24min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in January: 4h and 18min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 0min).
Average sunshine days in January
Sunapee, NH
- Average sunshine days in January: 13.8 days
The month with the most sunshine days is September (16.8 days).
The month with the least sunshine days is February (11.3 days).
Average UV index in January
Sunapee, 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 February and December (UV index 1).
Average cloud cover in January
Sunapee, NH
- Average cloud cover in January: 55
The month with the most cloud cover is February (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility in January
Sunapee, NH
- Average visibility in January: 5mi
The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (5mi).
The month with the lowest visibility is February (4mi).





