December weather forecast
Richmond, MA

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Weather in December

The first month of the winter, December, is still a cold month in Richmond, Massachusetts, with an average temperature ranging between min 23°F (-5°C) and max 34.2°F (1.2°C).

Temperature

December involves a decrease in temperature, down from a frosty 44.4°F (6.9°C) in November to a cold 34.2°F (1.2°C). Richmond records an average temperature drop to a freezing cold 23°F (-5°C) in December.

Humidity

The average relative humidity in December is 84%.

Rainfall

In Richmond, Massachusetts, during December, the rain falls for 4.7 days and regularly aggregates up to 0.63" (16mm) of precipitation. Throughout the year, there are 88.8 rainfall days, and 7.32" (186mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Richmond are January through May, October through December. December is the month with the most snowfall in Richmond. Snow falls for 5.9 days and accumulates 1.34" (34mm) 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 7:03 am and sunset at 4:21 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 4:30 pm EST.

Sunshine

In Richmond, the average sunshine in December is 4.2h.

UV index

The months with the lowest UV index are January through March, October through December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for average individuals.
Note: The daily high UV index of 2 in December translates into this advice:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.

Frequently asked questions

How cold is it in December?

The high-temperature during December is 34.2°F (1.2°C) and the low-temperature is 23°F (-5°C).

What is the average humidity in December?

The average relative humidity in December is 84%.

How many days does it rain in December?

In Richmond, during December, the rain falls for 4.7 days and regularly aggregates up to 0.63" (16mm) of precipitation.

What is the snowiest month?

The month with the most snowfall is December, when snow falls for 5.9 days and typically aggregates up to 1.34" (34mm) of snow.

How many days does it snow in December?

In Richmond, Massachusetts, in December, snow falls for 5.9 days, with typically accumulated 1.34" (34mm) of snow.

What is the month with the shortest days?

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

How many hours of daylight does Richmond have in December?

The average day length in December is 9h and 8min.

When is the sunrise / sunset in December?

On the first day of December, sunrise is at 7:03 am and sunset at 4:21 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 4:30 pm EST.

How many hours of sunshine does Richmond have in December?

The average sunshine duration in December is 4.2h.

When is the lowest UV index?

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

How high is the UV index in December?

The average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's 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
Richmond, MA

Average temperature in December - Richmond, MA
  • Average high temperature in December: 34.2°F

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (28°F).

  • Average low temperature in December: 23°F

The month with the highest average low temperature is July (59°F).
The coldest month (with the lowest average low temperature) is January (15.6°F).

Average pressure in December
Richmond, MA

Average pressure in December - Richmond, MA
  • Average pressure in December: 30.06"Hg

The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in December
Richmond, MA

Average wind speed in December - Richmond, MA
  • Average wind speed in December: 8.3mph

The windiest months (with the highest average wind speed) are January, February and March (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

Average humidity in December
Richmond, MA

Average humidity in December - Richmond, MA
  • Average humidity in December: 84%

The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is April (76%).

Average rainfall in December
Richmond, MA

Average rainfall in December - Richmond, MA
  • Average rainfall in December: 0.63"

The wettest month (with the highest rainfall) is July (0.83").
The driest month (with the least rainfall) is September (0.35").

Average rainfall days in December
Richmond, MA

Average rainfall days in December - Richmond, MA
  • Average rainfall days in December: 4.7 days

The month with the highest number of rainy days is July (11 days).
The month with the least rainy days is January (3.6 days).

Average snowfall in December
Richmond, MA

Average snowfall in December - Richmond, MA
  • Average snowfall in December: 1.34"

The month with the highest snowfall is December (1.34").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Richmond, MA

Average snowfall days in December - Richmond, MA
  • Average snowfall days in December: 5.9 days

The month with the highest number of snowfall days is February (7.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Richmond, 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 1min

The months with the most sunshine are July and August (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 3h and 42min).

Average sunshine days in December
Richmond, MA

Average sunshine days in December - Richmond, MA
  • Average sunshine days in December: 22.2 days

The month with the most sunshine days is January (23.3 days).
The month with the least sunshine days is June (17.1 days).

Average UV index in December
Richmond, MA

Average UV index in December - Richmond, MA
  • Average UV index in December: 2

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, March, October, November and December (UV index 2).

Average cloud cover in December
Richmond, MA

Average cloud cover in December - Richmond, MA
  • Average cloud cover in December: 56

The month with the most cloud cover is February (Cloud cover 60).
The months with the least cloud cover are July and August (Cloud cover 37).

Average visibility in December
Richmond, MA

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

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

Richmond, Massachusetts, USA

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