December weather forecastConway, NH
December
Weather in December
December is a magical time in Conway as the city gets wrapped in a blanket of snow, officially marking the height of winter. The city shines with holiday spirit amidst falling snowflakes while keeping up with its classic winter charm. December records a plunge in temperatures, averaging a minimum of 20.3°F (-6.5°C). With the year-ending, the snowy landscape and cool temperatures encapsulate the enchanting essence of Conway in the heart of New Hampshire.Temperature
The shift from November to December in Conway corresponds with a decrease in the average high-temperature, down to a subzero cold 30.6°F (-0.8°C) from an icy 42.4°F (5.8°C). December nights are marked by an average low-temperature of 20.3°F (-6.5°C).Humidity
In December, the average relative humidity is 81%.Rainfall
In Conway, in December, during 12 rainfall days, 2.68" (68mm) of precipitation is typically accumulated. Throughout the year, there are 156.4 rainfall days, and 27.09" (688mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Conway. In Conway, New Hampshire, during December, snow falls for 11.3 days and regularly aggregates up to 7.36" (187mm) of snow. Throughout the year, in Conway, there are 62.3 snowfall days, and 42.32" (1075mm) of snow is accumulated.Daylight
With an average of 9h and 0min of daylight, December has the shortest days of the year in Conway.On the first day of the month, sunrise is at 6:59 am and sunset at 4:07 pm. On the last day of December, in Conway, sunrise is at 7:18 am and sunset at 4:16 pm EST.
Sunshine
The average sunshine in December in Conway is 4.7h.UV index
January through April, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: During December, 2 as the daily maximum UV index converts into the following advice:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Conway, NH
- Average high temperature in December: 30.6°F
The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (25.7°F).
- Average low temperature in December: 20.3°F
The month with the highest average low temperature is July (56.1°F).
The coldest month (with the lowest average low temperature) is January (10.9°F).
Average pressure in December
Conway, NH
- Average pressure in December: 30.03"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Conway, NH
- Average wind speed in December: 5.8mph
The windiest month (with the highest average wind speed) is January (6.4mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in December
Conway, NH
- Average humidity in December: 81%
The months with the highest relative humidity are January and February (86%).
The months with the lowest relative humidity are May and November (77%).
Average rainfall in December
Conway, NH
- Average rainfall in December: 2.68"
The wettest month (with the highest rainfall) is October (2.95").
The driest month (with the least rainfall) is September (1.42").
Average rainfall days in December
Conway, NH
- Average rainfall days in December: 12 days
The month with the highest number of rainy days is May (16 days).
The month with the least rainy days is February (9.3 days).
Average snowfall in December
Conway, NH
- Average snowfall in December: 7.36"
The month with the highest snowfall is February (11.5").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Conway, NH
- Average snowfall days in December: 11.3 days
The month with the highest number of snowfall days is February (14.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Conway, NH
- Average daylight in December: 9h and 0min
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 December: 4h and 42min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).
Average sunshine days in December
Conway, NH
- Average sunshine days in December: 13.5 days
The month with the most sunshine days is September (16.8 days).
The month with the least sunshine days is April (10.6 days).
Average UV index in December
Conway, NH
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).
Average cloud cover in December
Conway, NH
- Average cloud cover in December: 50
The months with the most cloud cover are February and March (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility in December
Conway, NH
- Average visibility in December: 5mi
The months with the highest visibility are April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February and March (4mi).





