December weather forecast
Stoneham, MA

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Weather in December

The first month of the winter, December, is still a cold month in Stoneham, Massachusetts, with an average temperature fluctuating between 28.9°F (-1.7°C) and 38.8°F (3.8°C).

Temperature

With December's onset, the average high-temperature recedes from November's frosty 49.1°F (9.5°C) to a wintry 38.8°F (3.8°C). In the month of December, the nighttime temperature dips to a steady average of 28.9°F (-1.7°C).

Humidity

The average relative humidity in December is 76%.

Rainfall

December is the month with the most rainfall. Rain falls for 9.2 days and accumulates 2.87" (73mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In Stoneham, in December, snow falls for 5.5 days, with typically accumulated 4.33" (110mm) of snow. Throughout the year, there are 30.6 snowfall days, and 18.86" (479mm) of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 9h and 6min of daylight.
On the first day of December in Stoneham, sunrise is at 6:54 am and sunset at 4:12 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 4:21 pm EST.

Sunshine

In Stoneham, the average sunshine in December is 4.8h.

UV index

The months with the lowest UV index in Stoneham are January through March, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: A maximum high UV index of 2 in December translates into the following recommendations:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.

Frequently asked questions

How cold is December?

In Stoneham, 38.8°F (3.8°C) is the average high-temperature and 28.9°F (-1.7°C) is the average low-temperature during December. In August, the average heat index (a.k.a. 'feels like', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is estimated at 84.2°F (29°C).

What is the average humidity in December?

In December, the average relative humidity is 76%.

What is the wettest month?

The month with the most rainfall is December, when the rain falls for 9.2 days and typically aggregates up to 2.87" (73mm) of precipitation.

How much does it rain in December?

In Stoneham, during December, the rain falls for 9.2 days and regularly aggregates up to 2.87" (73mm) of precipitation.

How many days does it snow in December in Stoneham?

In Stoneham, during December, snow falls for 5.5 days and regularly aggregates up to 4.33" (110mm) of snow.

What is the month with the shortest days?

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

How many hours of daylight does Stoneham have in December?

In Stoneham, the average day length in December is 9h and 8min.

What time are sunrise and sunset in December?

On the first day of December, sunrise is at 6:54 am and sunset at 4:12 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 4:21 pm EST.

How many hours of sunshine does Stoneham have in December?

In December, the average sunshine duration is 4.8h.

What is the month with 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.

What is the UV index intensity in December?

In Stoneham, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a low health risk 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
Stoneham, MA

Average temperature in December - Stoneham, MA
  • Average high temperature in December: 38.8°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (33.1°F).

  • Average low temperature in December: 28.9°F

The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

Average pressure in December
Stoneham, MA

Average pressure in December - Stoneham, 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 (29.92"Hg).

Average wind speed in December
Stoneham, MA

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

The windiest month (with the highest average wind speed) is January (9.4mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).

Average humidity in December
Stoneham, MA

Average humidity in December - Stoneham, MA
  • Average humidity in December: 76%

The month with the highest relative humidity is February (78%).
The month with the lowest relative humidity is April (69%).

Average rainfall in December
Stoneham, MA

Average rainfall in December - Stoneham, MA
  • Average rainfall in December: 2.87"

The wettest month (with the highest rainfall) is December (2.87").
The driest month (with the least rainfall) is September (1.22").

Average rainfall days in December
Stoneham, MA

Average rainfall days in December - Stoneham, MA
  • Average rainfall days in December: 9.2 days

The month with the highest number of rainy days is May (15.5 days).
The month with the least rainy days is January (7.4 days).

Average snowfall in December
Stoneham, MA

Average snowfall in December - Stoneham, MA
  • Average snowfall in December: 4.33"

The month with the highest snowfall is February (4.96").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Stoneham, MA

Average snowfall days in December - Stoneham, MA
  • Average snowfall days in December: 5.5 days

The month with the highest number of snowfall days is January (7.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Stoneham, MA

Average daylight in December / Average sunshine in December - Stoneham, 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 6min).

  • 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 36min).

Average sunshine days in December
Stoneham, MA

Average sunshine days in December - Stoneham, MA
  • Average sunshine days in December: 17.2 days

The month with the most sunshine days is November (17.8 days).
The month with the least sunshine days is April (13.3 days).

Average UV index in December
Stoneham, MA

Average UV index in December - Stoneham, 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
Stoneham, MA

Average cloud cover in December - Stoneham, MA
  • Average cloud cover in December: 48

The month with the most cloud cover is March (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 32).

Average visibility in December
Stoneham, MA

Average visibility in December - Stoneham, MA
  • Average visibility in December: 6mi

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

Stoneham, Massachusetts, USA

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