December weather forecastLyndeborough, NH
December
Weather in December
The first month of the winter, December, is also a wintry month in Lyndeborough, New Hampshire, with an average temperature varying between 35.4°F (1.9°C) and 24.6°F (-4.1°C).Temperature
The commencement of December involves a temperature shift, with the average high-temperature dropping from a chilly 46.6°F (8.1°C) in November to a wintry 35.4°F (1.9°C). During the month of December, an average low-temperature of 24.6°F (-4.1°C) is recorded.Humidity
In Lyndeborough, the average relative humidity in December is 80%.Rainfall
In Lyndeborough, in December, during 10.9 rainfall days, 2.8" (71mm) of precipitation is typically accumulated. Throughout the year, there are 146.9 rainfall days, and 28.15" (715mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In December, it is snowing for 6.3 days. Throughout December, 5.43" (138mm) of snow is accumulated. In Lyndeborough, New Hampshire, during the entire year, snow falls for 38.3 days and aggregates up to 26.42" (671mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 6min of daylight.On the first day of December, sunrise is at 6:58 am and sunset at 4:13 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 4:22 pm EST.
Sunshine
In December, the average sunshine is 4.8h.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 value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for the average person.Note: A maximum daily UV index of 2 during December morphs into the following directions:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Lyndeborough, NH
- Average high temperature in December: 35.4°F
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in December: 24.6°F
The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).
Average pressure in December
Lyndeborough, NH
- Average pressure in December: 30.04"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Lyndeborough, NH
- Average wind speed in December: 7.6mph
The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity in December
Lyndeborough, NH
- Average humidity in December: 80%
The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is April (72%).
Average rainfall in December
Lyndeborough, NH
- Average rainfall in December: 2.8"
The wettest month (with the highest rainfall) is October (3.03").
The driest month (with the least rainfall) is September (1.61").
Average rainfall days in December
Lyndeborough, NH
- Average rainfall days in December: 10.9 days
The month with the highest number of rainy days is May (15.7 days).
The month with the least rainy days is January (6.9 days).
Average snowfall in December
Lyndeborough, NH
- Average snowfall in December: 5.43"
The month with the highest snowfall is February (6.42").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Lyndeborough, NH
- Average snowfall days in December: 6.3 days
The month with the highest number of snowfall days is February (9.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Lyndeborough, 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 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in December
Lyndeborough, NH
- Average sunshine days in December: 16.9 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is April (13.2 days).
Average UV index in December
Lyndeborough, 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
Lyndeborough, NH
- Average cloud cover in December: 48
The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in December
Lyndeborough, NH
- Average visibility in December: 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).
