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 a cold 42.1°F (5.6°C) in November to a subzero cold 30.6°F (-0.8°C). December brings Plainfield a consistent average low-temperature of 20.7°F (-6.3°C).Humidity
The average relative humidity in December in Plainfield is 83%.Rainfall
In Plainfield, New Hampshire, during December, the rain falls for 11.4 days and regularly aggregates up to 2.2" (56mm) of precipitation. In Plainfield, during the entire year, the rain falls for 158.8 days and collects up to 26.06" (662mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Plainfield, in December, during 13.5 snowfall days, 6.1" (155mm) of snow is typically accumulated. Throughout the year, in Plainfield, there are 72.7 snowfall days, and 35.67" (906mm) 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 7:02 am and sunset at 4:13 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 4:22 pm EST.
Sunshine
In December, the average sunshine is 4h.UV index
January, February and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The daily high UV index of 1 in December translates into this advice:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. The Sun's radiation is especially intense around midday; try to stay in shade during this period. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in December?
What is the average humidity in December?
How much 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 Plainfield have in December?
When is the sunrise / sunset in December in Plainfield?
How long on average sun shines in December?
When is the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Plainfield, NH
- Average high temperature in December: 30.6°F
The warmest month (with the highest average high temperature) is July (78.1°F).
The month with the lowest average high temperature is January (25.2°F).
- Average low temperature in December: 20.7°F
The month with the highest average low temperature is July (56.1°F).
The coldest month (with the lowest average low temperature) is January (12.6°F).
Average pressure in December
Plainfield, 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
Plainfield, NH
- Average wind speed in December: 7mph
The windiest month (with the highest average wind speed) is April (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in December
Plainfield, NH
- Average humidity in December: 83%
The month with the highest relative humidity is February (87%).
The month with the lowest relative humidity is May (75%).
Average rainfall in December
Plainfield, NH
- Average rainfall in December: 2.2"
The wettest month (with the highest rainfall) is October (2.76").
The driest month (with the least rainfall) is September (1.69").
Average rainfall days in December
Plainfield, NH
- Average rainfall days in December: 11.4 days
The month with the highest number of rainy days is June (16.8 days).
The month with the least rainy days is February (8 days).
Average snowfall in December
Plainfield, NH
- Average snowfall in December: 6.1"
The month with the highest snowfall is February (9.61").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Plainfield, NH
- Average snowfall days in December: 13.5 days
The month with the highest number of snowfall days is February (16.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Plainfield, NH
- Average daylight in December: 9h and 0min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in December: 4h and 0min
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 30min).
Average sunshine days in December
Plainfield, NH
- Average sunshine days in December: 11.6 days
The month with the most sunshine days is September (15.3 days).
The month with the least sunshine days is February (9.3 days).
Average UV index in December
Plainfield, 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 January, February and December (UV index 1).
Average cloud cover in December
Plainfield, NH
- Average cloud cover in December: 59
The month with the most cloud cover is February (Cloud cover 62).
The months with the least cloud cover are July and August (Cloud cover 37).
Average visibility in December
Plainfield, NH
- Average visibility in December: 5mi
The months with the highest visibility are April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February and March (4mi).
Plainfield, New Hampshire, USA
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