December weather forecast
East Walpole, MA

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Weather in December

The first month of the winter, December, is also a wintry month in East Walpole, Massachusetts, with an average temperature fluctuating between 40.1°F (4.5°C) and 28.9°F (-1.7°C).

Temperature

A moderate decline in the average high-temperature is seen during December, decreasing from a frosty 49.6°F (9.8°C) in November to an icy 40.1°F (4.5°C). In East Walpole, an average temperature of 28.9°F (-1.7°C) is noted during December nights.

Humidity

In December, the average relative humidity is 77%.

Rainfall

In East Walpole, in December, it is raining for 6.6 days, with typically 0.67" (17mm) of accumulated precipitation. Throughout the year, there are 97.1 rainfall days, and 7.13" (181mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, November and December. The months with the most snowfall are March and December, with an average 0.91" (23mm) of accumulated snow.

Daylight

With an average of 9h and 12min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 6:54 am and sunset at 4:13 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 4:23 pm EST.

Sunshine

The average sunshine in December is 4.9h.

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 of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: A maximum UV index of 2 in December translates into the following recommendations:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.

Frequently asked questions

How cold is December?

In December, the average high-temperature and low-temperature are 40.1°F (4.5°C) and 28.9°F (-1.7°C) respectively. In August, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines relative humidity and air temperature, is calculated to be 86°F (30°C).

What is the average humidity in December?

The average relative humidity in December is 77%.

How many days does it rain in December?

In December, the rain falls for 6.6 days. Throughout December, 0.67" (17mm) of precipitation is accumulated.

When does it snow the most?

The months with the most snowfall are March and December, with an average 0.91" (23mm) of accumulated snow.

How many days does it snow in December?

In East Walpole, Massachusetts, during December, snow falls for 3 days and regularly aggregates up to 0.91" (23mm) of snow.

What is the month with the shortest days in East Walpole?

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

What is the average length of the day in December?

In December, the average day length is 9h and 10min.

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 6:54 am and sunset at 4:13 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 4:23 pm EST.

How many hours of sunshine does East Walpole have in December?

The average sunshine duration in December is 4.9h.

What is the month with the lowest UV index in East Walpole?

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

What is the UV index reading in December?

The average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a low health threat 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
East Walpole, MA

Average temperature in December - East Walpole, MA
  • Average high temperature in December: 40.1°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (34.3°F).

  • Average low temperature in December: 28.9°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (22.3°F).

Average pressure in December
East Walpole, MA

Average pressure in December - East Walpole, 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
East Walpole, MA

Average wind speed in December - East Walpole, MA
  • Average wind speed in December: 8.4mph

The windiest months (with the highest average wind speed) are January, February and March (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).

Average humidity in December
East Walpole, MA

Average humidity in December - East Walpole, MA
  • Average humidity in December: 77%

The month with the highest relative humidity is February (78%).
The month with the lowest relative humidity is April (70%).

Average rainfall in December
East Walpole, MA

Average rainfall in December - East Walpole, MA
  • Average rainfall in December: 0.67"

The wettest month (with the highest rainfall) is April (0.79").
The driest month (with the least rainfall) is September (0.31").

Average rainfall days in December
East Walpole, MA

Average rainfall days in December - East Walpole, MA
  • Average rainfall days in December: 6.6 days

The month with the highest number of rainy days is July (11.7 days).
The month with the least rainy days is February (5.1 days).

Average snowfall in December
East Walpole, MA

Average snowfall in December - East Walpole, MA
  • Average snowfall in December: 0.91"

The months with the highest snowfall are March and December (0.91").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in December
East Walpole, MA

Average snowfall days in December - East Walpole, MA
  • Average snowfall days in December: 3 days

The month with the highest number of snowfall days is January (5 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
East Walpole, MA

Average daylight in December / Average sunshine in December - East Walpole, 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 30min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

Average sunshine days in December
East Walpole, MA

Average sunshine days in December - East Walpole, MA
  • Average sunshine days in December: 21.1 days

The month with the most sunshine days is November (22 days).
The month with the least sunshine days is July (16.8 days).

Average UV index in December
East Walpole, MA

Average UV index in December - East Walpole, 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
East Walpole, MA

Average cloud cover in December - East Walpole, MA
  • Average cloud cover in December: 47

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
East Walpole, MA

Average visibility in December - East Walpole, 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).

East Walpole, Massachusetts, USA

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