December weather forecast
Glendale, MA

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Weather in December

The first month of the winter, December, is also an icy month in Glendale, Massachusetts, with an average temperature varying between 34.2°F (1.2°C) and 23°F (-5°C).

Temperature

As November shifts into December, a slight alteration in temperatures is observed, with average highs reducing from a chilly 44.4°F (6.9°C) to an icy 34.2°F (1.2°C). Nighttime temperature experiences an average drop to a subzero cold 23°F (-5°C) in December.

Humidity

In Glendale, the average relative humidity in December is 84%.

Rainfall

In December, the rain falls for 4.7 days. Throughout December, 0.63" (16mm) of precipitation is accumulated. In Glendale, during the entire year, the rain falls for 88.8 days and collects up to 7.32" (186mm) of precipitation.

Snowfall

Months with snowfall in Glendale are January through May, October through December. 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.

Daylight

With an average of 9h and 6min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:03 am and sunset at 4:21 pm. On the last day of December, sunrise is at 7:22 am and sunset at 4:31 pm EST.

Sunshine

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

UV index

January through March, October through 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 unprotected exposure to Sun's UV rays for average individuals.
Note: In December, the maximum UV index of 2 suggests this advice:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. To cut down UV radiation exposure by about half, sport a wide-brim hat. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Updated: Aug 31, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December?

During December, Glendale experiences an average high-temperature of 34.2°F (1.2°C) and a low-temperature of 23°F (-5°C).

What is the average humidity in December?

In Glendale, the average relative humidity in December is 84%.

How many days does it rain in December?

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

When does it snow the most?

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 December, it is snowing for 5.9 days. Throughout December, 1.34" (34mm) of snow is accumulated.

What is the month with the shortest days?

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

What is the average length of the day in December in Glendale?

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

What time are sunrise and sunset in December?

In December, on the first day of the month, 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 4:31 pm EST.

How many hours of sunshine does Glendale have in December?

The average sunshine duration in December is 4.2h.

What are the months with the lowest UV index in Glendale?

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

What is the UV index intensity in December?

In December, the average daily maximum UV index in Glendale is 2. A UV Index of 2, and less, symbolizes a minimal hazard to health from unsafe 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
Glendale, MA

Average temperature in December - Glendale, 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
Glendale, MA

Average pressure in December - Glendale, 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
Glendale, MA

Average wind speed in December - Glendale, 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
Glendale, MA

Average humidity in December - Glendale, 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
Glendale, MA

Average rainfall in December - Glendale, 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
Glendale, MA

Average rainfall days in December - Glendale, 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
Glendale, MA

Average snowfall in December - Glendale, 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
Glendale, MA

Average snowfall days in December - Glendale, 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
Glendale, MA

Average daylight in December / Average sunshine in December - Glendale, 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
Glendale, MA

Average sunshine days in December - Glendale, 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
Glendale, MA

Average UV index in December - Glendale, 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
Glendale, MA

Average cloud cover in December - Glendale, 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
Glendale, MA

Average visibility in December - Glendale, 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).

Glendale, Massachusetts, USA

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