December weather forecast
Hallowell, ME

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Weather in December

Come December, Hallowell is under the full grip of winter, marking a sharp contrast to the warm, sunny days of summer. With a high of 32.5°F (0.3°C) and a low of 22.1°F (-5.5°C), the city fully embraces winter's icy hold. Snowfall ascends to 4.8" (122mm), and the landscape turns into a winter wonderland. As the year comes to a close in this magical snowy setting, Hallowell exudes an unparalleled charm. Messalonskee Lake freezes over, and the city lights glitter against the blanket of snow, painting an unforgettable picture of winter beauty.

Temperature

Hallowell in December undergoes a mild reduction in the average high-temperature, shifting from November's frosty 43.7°F (6.5°C) to an icy 32.5°F (0.3°C). December nights in Hallowell observe an average temperature dip to a subzero cold 22.1°F (-5.5°C).

Humidity

The average relative humidity in December is 80%.

Rainfall

In December, the rain falls for 10.4 days. Throughout December, 2.83" (72mm) of precipitation is accumulated. In Hallowell, during the entire year, the rain falls for 142.3 days and collects up to 27.52" (699mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Hallowell. In Hallowell, during December, snow falls for 9.1 days and regularly aggregates up to 4.8" (122mm) of snow. In Hallowell, during the entire year, snow falls for 50.3 days and aggregates up to 29.69" (754mm) of snow.

Daylight

The month with the shortest days is December, with an average of 8h and 54min of daylight.
On the first day of the month, sunrise is at 6:55 am and sunset at 4:01 pm. On the last day of December, sunrise is at 7:14 am and sunset at 4:10 pm EST.

Sunshine

In Hallowell, Maine, the average sunshine in December is 4.7h.

UV index

January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Hallowell. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum UV index of 2 during December translates into these guidelines:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.

Frequently asked questions

How cold is it in December?

In Hallowell, in December, the average high-temperature is 32.5°F (0.3°C), and the average low-temperature is 22.1°F (-5.5°C).

What is the average humidity in December?

In Hallowell, the average relative humidity in December is 80%.

How much does it rain in December?

In Hallowell, in December, it is raining for 10.4 days, with typically 2.83" (72mm) of accumulated precipitation.

How much does it snow in December?

In Hallowell, in December, during 9.1 snowfall days, 4.8" (122mm) of snow is typically accumulated.

What is the month with the shortest days?

With an average of 8h and 54min of daylight, December has the shortest days of the year.

How many hours of daylight does Hallowell have in December?

The average day length in December is 8h and 55min.

When are sunrise and sunset in December?

On the first day of December, sunrise is at 6:55 am and sunset at 4:01 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 4:10 pm EST.

How many hours of sunshine does Hallowell have in December?

In December, the average sunshine duration is 4.7h.

When is the lowest UV index?

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

What is the UV index intensity in December?

In December, the average daily maximum UV index in Hallowell is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability 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
Hallowell, ME

Average temperature in December - Hallowell, ME
  • Average high temperature in December: 32.5°F

The warmest month (with the highest average high temperature) is July (76.6°F).
The month with the lowest average high temperature is January (27°F).

  • Average low temperature in December: 22.1°F

The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is January (13.6°F).

Average pressure in December
Hallowell, ME

Average pressure in December - Hallowell, ME
  • Average pressure in December: 30.01"Hg

The months with the highest atmospheric pressure are September and November (30.04"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in December
Hallowell, ME

Average wind speed in December - Hallowell, ME
  • Average wind speed in December: 7.8mph

The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

Average humidity in December
Hallowell, ME

Average humidity in December - Hallowell, ME
  • Average humidity in December: 80%

The months with the highest relative humidity are January, February and March (83%).
The month with the lowest relative humidity is November (76%).

Average rainfall in December
Hallowell, ME

Average rainfall in December - Hallowell, ME
  • Average rainfall in December: 2.83"

The wettest month (with the highest rainfall) is October (2.95").
The driest month (with the least rainfall) is September (1.42").

Average rainfall days in December
Hallowell, ME

Average rainfall days in December - Hallowell, ME
  • Average rainfall days in December: 10.4 days

The month with the highest number of rainy days is June (16 days).
The month with the least rainy days is January (7 days).

Average snowfall in December
Hallowell, ME

Average snowfall in December - Hallowell, ME
  • Average snowfall in December: 4.8"

The month with the highest snowfall is February (6.77").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Hallowell, ME

Average snowfall days in December - Hallowell, ME
  • Average snowfall days in December: 9.1 days

The month with the highest number of snowfall days is January (10.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Hallowell, ME

Average daylight in December / Average sunshine in December - Hallowell, ME
  • Average daylight in December: 8h and 5min

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in December: 4h and 4min

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days in December
Hallowell, ME

Average sunshine days in December - Hallowell, ME
  • Average sunshine days in December: 14.8 days

The month with the most sunshine days is September (17.7 days).
The month with the least sunshine days is April (11.6 days).

Average UV index in December
Hallowell, ME

Average UV index in December - Hallowell, ME
  • Average UV index in December: 2

The months with the highest UV index are 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
Hallowell, ME

Average cloud cover in December - Hallowell, ME
  • Average cloud cover in December: 50

The months with the most cloud cover are March and April (Cloud cover 52).
The months with the least cloud cover are August and September (Cloud cover 36).

Average visibility in December
Hallowell, ME

Average visibility in December - Hallowell, ME
  • Average visibility in December: 6mi

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

Hallowell, Maine, USA

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