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
The arrival of December corresponds with a temperature reduction, down from November's frosty 46.6°F (8.1°C) to a cold 35.4°F (1.9°C). Mont Vernon's nights in December cool down to an average low-temperature of 24.6°F (-4.1°C).Humidity
The average relative humidity in December is 80%.Rainfall
In Mont Vernon, New Hampshire, during December, the rain falls for 10.9 days and regularly aggregates up to 2.8" (71mm) of precipitation. In Mont Vernon, during the entire year, the rain falls for 146.9 days and collects up to 28.15" (715mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Mont Vernon, in December, snow falls for 6.3 days, with typically accumulated 5.43" (138mm) of snow. In Mont Vernon, during the entire year, snow falls for 38.3 days and aggregates up to 26.42" (671mm) of snow.Daylight
December has the shortest days of the year, 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
The average sunshine in December in Mont Vernon, New Hampshire, 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 minimal health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: An average UV index of 2 in December transforms into this advice:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Frequently asked questions
How cold is it in Mont Vernon in December?
What is the average humidity in December in Mont Vernon?
How much does it rain in Mont Vernon in December?
How many days does it snow in December in Mont Vernon?
What is the month with the shortest days in Mont Vernon?
What is the average length of the day in December in Mont Vernon?
What time are sunrise and sunset in December in Mont Vernon?
How long on average sun shines in December in Mont Vernon?
What is the month with the lowest UV index in Mont Vernon?
How high is the UV index in December in Mont Vernon?
Average temperature in December
Mont Vernon, 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
Mont Vernon, 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
Mont Vernon, 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
Mont Vernon, 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
Mont Vernon, 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
Mont Vernon, 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
Mont Vernon, 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
Mont Vernon, 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
Mont Vernon, 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 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in December
Mont Vernon, 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
Mont Vernon, 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
Mont Vernon, 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
Mont Vernon, 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).
Mont Vernon, New Hampshire, USA
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