December weather forecastDurham, NH
December
Weather in December
December in Durham ushers in the full swing of winter. Compared to the transitional November, temperatures in December remain consistently low. Maximum snowfall is recorded in this month at 4.53" (115mm), transforming Durham into a winter wonderland. Reduced daylight hours add to the festive spirit of the holiday season. Affording beautiful snow-covered landscapes and festive joy, December signifies an end to the weather cycle, paving the way for a new year.Temperature
In Durham, the beginning of December is marked by a lowered average high-temperature, shifting from November's chilly 46.6°F (8.1°C) to a cold 37°F (2.8°C). Throughout December, the average low-temperature dips to a subzero cold 27.3°F (-2.6°C).Humidity
In December, the average relative humidity in Durham is 78%.Rainfall
The months with the most rainfall in Durham are October and December, with an average 2.87" (73mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. The month with the most snowfall is December, when snow falls for 7.3 days and typically aggregates up to 4.53" (115mm) of snow.Daylight
With an average of 9h and 6min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 6:56 am and sunset at 4:09 pm. On the last day of December, sunrise is at 7:15 am and sunset at 4:18 pm EST.
Sunshine
The months with the least sunshine are February and December, with an average of 4.8h of sunshine.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 2 during December leads to these advisories:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Durham, NH
- Average high temperature in December: 37°F
The warmest month (with the highest average high temperature) is July (77.4°F).
The month with the lowest average high temperature is January (31.5°F).
- Average low temperature in December: 27.3°F
The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in December
Durham, 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 (29.92"Hg).
Average wind speed in December
Durham, NH
- Average wind speed in December: 10mph
The windiest month (with the highest average wind speed) is January (10.8mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).
Average humidity in December
Durham, NH
- Average humidity in December: 78%
The months with the highest relative humidity are January and February (80%).
The months with the lowest relative humidity are April and November (75%).
Average rainfall in December
Durham, NH
- Average rainfall in December: 2.87"
The wettest months (with the highest rainfall) are October and December (2.87").
The driest month (with the least rainfall) is September (1.46").
Average rainfall days in December
Durham, NH
- Average rainfall days in December: 11.2 days
The month with the highest number of rainy days is May (15 days).
The month with the least rainy days is February (7.6 days).
Average snowfall in December
Durham, NH
- Average snowfall in December: 4.53"
The month with the highest snowfall is December (4.53").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Durham, NH
- Average snowfall days in December: 7.3 days
The month with the highest number of snowfall days is January (8.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Durham, NH
- Average daylight in December: 9h and 6min
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 6min).
- Average sunshine in December: 4h and 48min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).
Average sunshine days in December
Durham, NH
- Average sunshine days in December: 14.9 days
The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is April (13.2 days).
Average UV index in December
Durham, NH
- Average UV index in December: 2
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in December
Durham, NH
- Average cloud cover in December: 47
The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in December
Durham, NH
- Average visibility in December: 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).
