December weather forecast
Chester, NH

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Weather in December

The first month of the winter, December, is still a cold month in Chester, New Hampshire, with an average temperature fluctuating between 25.3°F (-3.7°C) and 36.3°F (2.4°C).

Temperature

Chester's weather changes with the onset of December, slightly falling from a chilly 46.6°F (8.1°C) in November to a wintry 36.3°F (2.4°C). Chester throughout December, records an average low-temperature of 25.3°F (-3.7°C).

Humidity

In Chester, the average relative humidity in December is 79%.

Rainfall

In Chester, in December, it is raining for 6.3 days, with typically 1.1" (28mm) of accumulated precipitation. In Chester, during the entire year, the rain falls for 104.4 days and collects up to 12.95" (329mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. December is the month with the most snowfall. Snow falls for 4 days and accumulates 2.99" (76mm) 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 6:57 am and sunset at 4:11 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 4:20 pm EST.

Sunshine

In December, the average sunshine is 4.8h.

UV index

The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: In December, the maximum UV index of 2 transforms into these recommendations:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. Around midday, solar radiation is most harmful; hence, exposure should be limited. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Updated: Aug 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in December?

In Chester, in December, the average high-temperature is 36.3°F (2.4°C), and the average low-temperature is 25.3°F (-3.7°C). In July, the average heat index (a.k.a. 'real feel', 'feels like'), which combines air temperature and relative humidity, is estimated at 86°F (30°C).

What is the average humidity in December?

In Chester, the average relative humidity in December is 79%.

How many days does it rain in December?

In Chester, in December, it is raining for 6.3 days, with typically 1.1" (28mm) of accumulated precipitation.

When does it snow the most?

December is the month with the most snowfall in Chester. Snow falls for 4 days and accumulates 2.99" (76mm) of snow.

How much does it snow in December?

In Chester, New Hampshire, in December, during 4 snowfall days, 2.99" (76mm) of snow is typically accumulated.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 6min of daylight.

How many hours of daylight does Chester have in December?

In Chester, New Hampshire, the average day length in December is 9h and 5min.

What time are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 6:57 am and sunset at 4:11 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 4:20 pm EST.

How many hours of sunshine does Chester have in December?

In December, the average sunshine duration in Chester is 4.8h.

When is the lowest UV index?

The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2.

How high is the UV index in December?

In Chester, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Chester, NH

Average temperature in December - Chester, NH
  • Average high temperature in December: 36.3°F

The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (30.6°F).

  • Average low temperature in December: 25.3°F

The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is January (18°F).

Average pressure in December
Chester, NH

Average pressure in December - Chester, NH
  • Average pressure in December: 30.03"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
Chester, NH

Average wind speed in December - Chester, NH
  • Average wind speed in December: 7.8mph

The windiest month (with the highest average wind speed) is January (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

Average humidity in December
Chester, NH

Average humidity in December - Chester, NH
  • Average humidity in December: 79%

The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is April (72%).

Average rainfall in December
Chester, NH

Average rainfall in December - Chester, NH
  • Average rainfall in December: 1.1"

The wettest month (with the highest rainfall) is October (1.38").
The driest month (with the least rainfall) is January (0.75").

Average rainfall days in December
Chester, NH

Average rainfall days in December - Chester, NH
  • Average rainfall days in December: 6.3 days

The month with the highest number of rainy days is June (12.1 days).
The month with the least rainy days is January (4.1 days).

Average snowfall in December
Chester, NH

Average snowfall in December - Chester, NH
  • Average snowfall in December: 2.99"

The month with the highest snowfall is December (2.99").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Chester, NH

Average snowfall days in December - Chester, NH
  • Average snowfall days in December: 4 days

The month with the highest number of snowfall days is January (7.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Chester, NH

Average daylight in December / Average sunshine in December - Chester, 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
Chester, NH

Average sunshine days in December - Chester, NH
  • Average sunshine days in December: 21.3 days

The months with the most sunshine days are January and December (21.3 days).
The month with the least sunshine days is June (16.7 days).

Average UV index in December
Chester, NH

Average UV index in December - Chester, NH
  • Average UV index in December: 2

The months with the highest UV index are June, 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
Chester, NH

Average cloud cover in December - Chester, NH
  • Average cloud cover in December: 47

The month with the most cloud cover is March (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 33).

Average visibility in December
Chester, NH

Average visibility in December - Chester, NH
  • Average visibility in December: 6mi

The months with the highest visibility are January, April, November and December (6mi).
The months with the lowest visibility are February, March, May, June, July, August, September and October (5mi).

Chester, New Hampshire, USA

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