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
A moderate decline in the average high-temperature is seen during December, decreasing from an icy 42.4°F (5.8°C) in November to a subzero cold 31.3°F (-0.4°C). South Newbury records an average low-temperature of 21°F (-6.1°C) throughout the month of December.Humidity
In December, the average relative humidity is 83%.Rainfall
In South Newbury, in December, it is raining for 8.1 days, with typically 1.02" (26mm) of accumulated precipitation. In South Newbury, during the entire year, the rain falls for 121.9 days and collects up to 13.58" (345mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In South Newbury, in December, snow falls for 11.2 days, with typically accumulated 2.6" (66mm) of snow. Throughout the year, there are 65.7 snowfall days, and 19.88" (505mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 0min of daylight.On the first day of December, sunrise is at 7:01 am and sunset at 4:13 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 4:22 pm EST.
Sunshine
In South Newbury, the average sunshine in December is 4.2h.UV index
The months with the lowest UV index are February and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for average individuals.Note: During December, 1 as the daily maximum UV index converts into the following advice:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the average humidity in December in South Newbury?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does South Newbury have in December?
When are sunrise and sunset in December?
How long on average sun shines in December?
When is the lowest UV index?
How high is the UV index in December?
Average temperature in December
South Newbury, NH
- Average high temperature in December: 31.3°F
The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (25.5°F).
- Average low temperature in December: 21°F
The month with the highest average low temperature is July (58.1°F).
The coldest month (with the lowest average low temperature) is January (13.1°F).
Average pressure in December
South Newbury, 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 (29.91"Hg).
Average wind speed in December
South Newbury, NH
- Average wind speed in December: 7.3mph
The windiest months (with the highest average wind speed) are January and February (7.8mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in December
South Newbury, NH
- Average humidity in December: 83%
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 December
South Newbury, NH
- Average rainfall in December: 1.02"
The wettest month (with the highest rainfall) is October (1.61").
The driest month (with the least rainfall) is January (0.79").
Average rainfall days in December
South Newbury, NH
- Average rainfall days in December: 8.1 days
The month with the highest number of rainy days is May (14.4 days).
The month with the least rainy days is February (5.8 days).
Average snowfall in December
South Newbury, NH
- Average snowfall in December: 2.6"
The month with the highest snowfall is February (3.82").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
South Newbury, NH
- Average snowfall days in December: 11.2 days
The month with the highest number of snowfall days is February (13.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
South Newbury, NH
- Average daylight in December: 9h and 0min
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 0min).
- Average sunshine in December: 4h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).
Average sunshine days in December
South Newbury, NH
- Average sunshine days in December: 16.5 days
The month with the most sunshine days is January (17.6 days).
The month with the least sunshine days is April (12.9 days).
Average UV index in December
South Newbury, NH
- Average UV index in December: 1
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 December
South Newbury, NH
- Average cloud cover in December: 56
The month with the most cloud cover is February (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 37).
Average visibility in December
South Newbury, NH
- Average visibility in December: 5mi
The months with the highest visibility are January, March, April, May, June, July, August, October, November and December (5mi).
The months with the lowest visibility are February and September (4mi).
South Newbury, New Hampshire, USA
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