December weather forecast
Randolph, MA

Weather in December

December, the first month of the winter in Randolph, is still a cold month, with an average temperature ranging between max 39.6°F (4.2°C) and min 29.1°F (-1.6°C).

Temperature

In Randolph, the average high-temperature in December drops from a frosty 49.3°F (9.6°C) in November to a cold 39.6°F (4.2°C). In December, the average low-temperature is 29.1°F (-1.6°C).

Humidity

The average relative humidity in December is 77%.

Rainfall

December is the month with the most rainfall in Randolph. Rain falls for 10.7 days and accumulates 2.95" (75mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall in Randolph. In Randolph, Massachusetts, during December, snow falls for 5.8 days and regularly aggregates up to 4.21" (107mm) of snow. In Randolph, during the entire year, snow falls for 32.7 days and aggregates up to 22.01" (559mm) of snow.

Daylight

With an average of 9h and 10min of daylight, December has the shortest days of the year in Randolph, Massachusetts.
On the first day of December in Randolph, sunrise is at 6:52 am and sunset at 4:13 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 4:21 pm EST.

Sunshine

In December, the average sunshine 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 in Randolph, Massachusetts. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV rays for average individuals.
Note: The average daily UV index of 2 in December transform into the following instructions:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
[Resources]

FAQ

What is the temperature in December in Randolph?

The average high-temperature, in December, in Randolph, is 39.6°F (4.2°C), while the average low-temperature is 29.1°F (-1.6°C). in July, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is computed to be 86°F (30°C).

What is the average humidity in December in Randolph?

The average relative humidity in December in Randolph, Massachusetts, is 77%.

What is the rainiest month in Randolph?

December is the month with the most rainfall in Randolph. Rain falls for 10.7 days and accumulates 2.95" (75mm) of precipitation.

How much does it rain in Randolph in December?

In Randolph, during December, the rain falls for 10.7 days and regularly aggregates up to 2.95" (75mm) of precipitation.

How much does it snow in Randolph in December?

In Randolph, in December, snow falls for 5.8 days, with typically accumulated 4.21" (107mm) of snow.

What is the month with the shortest days in Randolph?

December has the shortest days of the year in Randolph, Massachusetts, with an average of 9h and 10min of daylight.

How many hours of daylight does Randolph have in December?

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

When are sunrise and sunset in December in Randolph?

In December, on the first day of the month, sunrise is at 6:52 am and sunset at 4:13 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 4:21 pm EST.

How many hours of sunshine does Randolph have in December?

In December, the average sunshine duration in Randolph, Massachusetts, is 4.9h.

What is the month with the lowest UV index in Randolph?

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 in Randolph?

In December, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a low health risk from exposure to Sun's UV rays.
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
Randolph, MA

Average temperature in December - Randolph, MA
  • Average high temperature in December: 39.6°F

The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (33.6°F).

  • Average low temperature in December: 29.1°F

The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (21.9°F).

[Resources]

Average pressure in December
Randolph, MA

Average pressure in December - Randolph, 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).

[Resources]

Average wind speed in December
Randolph, MA

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

The windiest month (with the highest average wind speed) is January (9.5mph).
The calmest month (with the lowest average wind speed) is August (6mph).

[Resources]

Average humidity in December
Randolph, MA

Average humidity in December - Randolph, 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%).

[Resources]

Average rainfall in December
Randolph, MA

Average rainfall in December - Randolph, MA
  • Average rainfall in December: 2.95"

The wettest month (with the highest rainfall) is December (2.95").
The driest month (with the least rainfall) is September (1.5").

[Resources]

Average rainfall days in December
Randolph, MA

Average rainfall days in December - Randolph, MA
  • Average rainfall days in December: 10.7 days

The month with the highest number of rainy days is July (15.8 days).
The months with the least rainy days are January and February (7.8 days).

[Resources]

Average snowfall in December
Randolph, MA

Average snowfall in December - Randolph, MA
  • Average snowfall in December: 4.21"

The month with the highest snowfall is March (5.24").
The months with the least snowfall are May, June, July, August and September (0").

[Resources]

Average snowfall days in December
Randolph, MA

Average snowfall days in December - Randolph, MA
  • Average snowfall days in December: 5.8 days

The month with the highest number of snowfall days is February (8.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

[Resources]

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

Average daylight in December / Average sunshine in December - Randolph, MA
  • Average daylight in December: 9h and 10min

The month with the longest days is June (Average daylight: 15h and 13min).
The month with the shortest days is December (Average daylight: 9h and 10min).

  • Average sunshine in December: 4h and 54min

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).

[Resources]

Average sunshine days in December
Randolph, MA

Average sunshine days in December - Randolph, MA
  • Average sunshine days in December: 16.5 days

The month with the most sunshine days is November (18 days).
The month with the least sunshine days is April (13.2 days).

[Resources]

Average UV index in December
Randolph, MA

Average UV index in December - Randolph, 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).

[Resources]

Average cloud cover in December
Randolph, MA

Average cloud cover in December - Randolph, 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).

[Resources]

Average visibility in December
Randolph, MA

Average visibility in December - Randolph, 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).

[Resources]

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location
* you will be automatically redirected to the weather forecast for your location