December weather forecast
Camp Welch, MA

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Weather in December

December, the first month of the winter in Camp Welch, is still a cold month, with an average temperature fluctuating between 30.9°F (-0.6°C) and 41.7°F (5.4°C).

Temperature

The transition into December is accompanied by a temperature decrease, with the average high-temperature shifting from a cool 50.7°F (10.4°C) in November to a wintry 41.7°F (5.4°C). The average nighttime temperature lowers to a subzero cold 30.9°F (-0.6°C) throughout December.

Humidity

The average relative humidity in December is 76%.

Rainfall

December is the month with the most rainfall. Rain falls for 11.3 days and accumulates 3.27" (83mm) of precipitation.

Snowfall

Months with snowfall in Camp Welch are January through May, November and December. In December, it is snowing for 4.7 days. Throughout December, 2.56" (65mm) of snow is accumulated. Throughout the year, there are 26.8 snowfall days, and 13.66" (347mm) of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 9h and 12min of daylight.
On the first day of the month, sunrise is at 6:52 am and sunset at 4:14 pm. On the last day of December, sunrise is at 7:11 am and sunset at 4:23 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 value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The daily high UV index of 2 during December translates into the following recommendations:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Updated: Jun 25, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold does it get in December?

In December, the average high-temperature and low-temperature are 41.7°F (5.4°C) and 30.9°F (-0.6°C) respectively. The average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines air temperature and relative humidity, in July is estimated at 86°F (30°C).

What is the average humidity in December?

The average relative humidity in December is 76%.

What is the wettest month in Camp Welch?

December is the month with the most rainfall. Rain falls for 11.3 days and accumulates 3.27" (83mm) of precipitation.

How much does it rain in December?

In December, the rain falls for 11.3 days. Throughout December, 3.27" (83mm) of precipitation is accumulated.

How many days does it snow in December?

In Camp Welch, during December, snow falls for 4.7 days and regularly aggregates up to 2.56" (65mm) of snow.

What is the month with the shortest days in Camp Welch?

December has the shortest days of the year, with an average of 9h and 12min of daylight.

How many hours of daylight does Camp Welch have in December?

In December, the average day length is 9h and 12min.

What time are sunrise and sunset in December in Camp Welch?

In December, on the first day of the month, sunrise is at 6:52 am and sunset at 4:14 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 4:23 pm EST.

How long on average sun shines in December?

The average sunshine duration in December is 4.8h.

When is the lowest UV index?

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

What is the UV index reading in December?

In December, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents 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
Camp Welch, MA

Average temperature in December - Camp Welch, MA
  • Average high temperature in December: 41.7°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (35.6°F).

  • Average low temperature in December: 30.9°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (23.9°F).

Average pressure in December
Camp Welch, MA

Average pressure in December - Camp Welch, MA
  • 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 (29.93"Hg).

Average wind speed in December
Camp Welch, MA

Average wind speed in December - Camp Welch, MA
  • Average wind speed in December: 8.9mph

The windiest month (with the highest average wind speed) is March (9.8mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).

Average humidity in December
Camp Welch, MA

Average humidity in December - Camp Welch, MA
  • Average humidity in December: 76%

The months with the highest relative humidity are June, July and September (78%).
The month with the lowest relative humidity is April (72%).

Average rainfall in December
Camp Welch, MA

Average rainfall in December - Camp Welch, MA
  • Average rainfall in December: 3.27"

The wettest month (with the highest rainfall) is December (3.27").
The driest month (with the least rainfall) is September (1.34").

Average rainfall days in December
Camp Welch, MA

Average rainfall days in December - Camp Welch, MA
  • Average rainfall days in December: 11.3 days

The month with the highest number of rainy days is April (16 days).
The month with the least rainy days is February (8.5 days).

Average snowfall in December
Camp Welch, MA

Average snowfall in December - Camp Welch, MA
  • Average snowfall in December: 2.56"

The months with the highest snowfall are February and March (3.62").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in December
Camp Welch, MA

Average snowfall days in December - Camp Welch, MA
  • Average snowfall days in December: 4.7 days

The month with the highest number of snowfall days is January (7 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

Average daylight in December /
Average sunshine in December
Camp Welch, MA

Average daylight in December / Average sunshine in December - Camp Welch, MA
  • Average daylight in December: 9h and 1min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • 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
Camp Welch, MA

Average sunshine days in December - Camp Welch, MA
  • Average sunshine days in December: 16.2 days

The month with the most sunshine days is November (17.8 days).
The month with the least sunshine days is April (12.8 days).

Average UV index in December
Camp Welch, MA

Average UV index in December - Camp Welch, MA
  • 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
Camp Welch, MA

Average cloud cover in December - Camp Welch, MA
  • 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 32).

Average visibility in December
Camp Welch, MA

Average visibility in December - Camp Welch, MA
  • Average visibility in December: 6mi

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

Camp Welch, Massachusetts, USA

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