Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
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.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in December?
What is the average humidity in December?
How much does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Hallowell have in December?
When are sunrise and sunset in December?
How many hours of sunshine does Hallowell have in December?
When is the lowest UV index?
What is the UV index intensity in December?
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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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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