Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
With the onset of December, Marlborough's average high-temperature adjusts, receding from November's frosty 44.4°F (6.9°C) to a cold 33.4°F (0.8°C). Marlborough's temperature drops to an average low of 22.8°F (-5.1°C) during the nights of December.Humidity
The average relative humidity in December in Marlborough, New Hampshire, is 82%.Rainfall
In Marlborough, in December, it is raining for 7.7 days, with typically 0.87" (22mm) of accumulated precipitation. In Marlborough, during the entire year, the rain falls for 125.1 days and collects up to 11.69" (297mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Marlborough. In December, in Marlborough, it is snowing for 7.4 days. Throughout December, 1.61" (41mm) of snow is accumulated. In Marlborough, during the entire year, snow falls for 39.8 days and aggregates up to 10.2" (259mm) of snow.Daylight
With an average of 9h and 6min of daylight, December has the shortest days of the year in Marlborough.On the first day of the month, sunrise is at 7:00 am and sunset at 4:15 pm. On the last day of December, in Marlborough, sunrise is at 7:19 am and sunset at 4:24 pm EST.
Sunshine
In Marlborough, the average sunshine in December is 4.8h.UV index
January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Marlborough, New Hampshire. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The average daily UV index of 2 in December transforms into the following instructions:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Frequently asked questions
How cold is December in Marlborough?
What is the average humidity in December in Marlborough?
How many days does it rain in December in Marlborough?
How much does it snow in Marlborough in December?
What is the month with the shortest days in Marlborough?
What is the average length of the day in December in Marlborough?
When is the sunrise / sunset in December in Marlborough?
How long on average sun shines in December in Marlborough?
What are the months with the lowest UV index in Marlborough?
How high is the UV index in December in Marlborough?
Average temperature in December
Marlborough, NH
- Average high temperature in December: 33.4°F
The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (27.9°F).
- Average low temperature in December: 22.8°F
The month with the highest average low temperature is July (58.6°F).
The coldest month (with the lowest average low temperature) is January (15.1°F).
Average pressure in December
Marlborough, NH
- Average pressure in December: 30.04"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 December
Marlborough, NH
- Average wind speed in December: 7.3mph
The windiest months (with the highest average wind speed) are January, February and March (7.9mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in December
Marlborough, NH
- Average humidity in December: 82%
The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is April (74%).
Average rainfall in December
Marlborough, NH
- Average rainfall in December: 0.87"
The wettest month (with the highest rainfall) is July (1.3").
The driest month (with the least rainfall) is March (0.75").
Average rainfall days in December
Marlborough, NH
- Average rainfall days in December: 7.7 days
The month with the highest number of rainy days is May (14.6 days).
The month with the least rainy days is January (6.3 days).
Average snowfall in December
Marlborough, NH
- Average snowfall in December: 1.61"
The month with the highest snowfall is January (2.64").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Marlborough, NH
- Average snowfall days in December: 7.4 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
Marlborough, NH
- Average daylight in December: 9h and 1min
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 5min
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 December
Marlborough, NH
- Average sunshine days in December: 18.4 days
The month with the most sunshine days is November (20.2 days).
The month with the least sunshine days is May (13.8 days).
Average UV index in December
Marlborough, NH
- Average UV index in December: 2
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in December
Marlborough, NH
- Average cloud cover in December: 49
The months with the most cloud cover are February and March (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in December
Marlborough, NH
- Average visibility in December: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).
Marlborough, New Hampshire, USA
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