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
The shift from November to December involves a decrease in the average high-temperature, from a wintry 41.7°F (5.4°C) to a subzero cold 30°F (-1.1°C). The average temperature in Mattawamkeag, Maine, during December nights dips to a still freezing cold 19.8°F (-6.8°C).Humidity
In December, the average relative humidity in Mattawamkeag, Maine, is 83%.Rainfall
In Mattawamkeag, Maine, in December, it is raining for 6.9 days, with typically 1.06" (27mm) of accumulated precipitation. In Mattawamkeag, during the entire year, the rain falls for 105.2 days and collects up to 12.4" (315mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Mattawamkeag, in December, snow falls for 9.6 days, with typically accumulated 2.6" (66mm) of snow. In Mattawamkeag, during the entire year, snow falls for 50.6 days and aggregates up to 15.59" (396mm) of snow.Daylight
With an average of 8h and 48min of daylight, December has the shortest days of the year in Mattawamkeag.On the first day of December, sunrise is at 6:53 am and sunset at 3:51 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 4:00 pm EST.
Sunshine
In December, the average sunshine in Mattawamkeag is 4.1h.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 of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum daily UV index, 2 in December, converts into the following recommendations:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Frequently asked questions
How cold is December in Mattawamkeag?
What is the average humidity in December in Mattawamkeag?
How much does it rain in Mattawamkeag in December?
How much does it snow in Mattawamkeag in December?
What is the month with the shortest days in Mattawamkeag?
What is the average length of the day in December in Mattawamkeag?
When are sunrise and sunset in December in Mattawamkeag?
How long on average sun shines in December in Mattawamkeag?
What are the months with the lowest UV index in Mattawamkeag?
How high is the UV index in December in Mattawamkeag?
Average temperature in December
Mattawamkeag, ME
- Average high temperature in December: 30°F
The warmest month (with the highest average high temperature) is July (78.3°F).
The month with the lowest average high temperature is January (24.4°F).
- Average low temperature in December: 19.8°F
The month with the highest average low temperature is July (56.8°F).
The coldest month (with the lowest average low temperature) is January (11.3°F).
Average pressure in December
Mattawamkeag, ME
- Average pressure in December: 30"Hg
The months with the highest atmospheric pressure are September and November (30.03"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in December
Mattawamkeag, ME
- Average wind speed in December: 6.8mph
The windiest month (with the highest average wind speed) is March (7.5mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in December
Mattawamkeag, ME
- Average humidity in December: 83%
The month with the highest relative humidity is February (88%).
The month with the lowest relative humidity is May (75%).
Average rainfall in December
Mattawamkeag, ME
- Average rainfall in December: 1.06"
The wettest month (with the highest rainfall) is April (1.38").
The driest months (with the least rainfall) are March, July and September (0.75").
Average rainfall days in December
Mattawamkeag, ME
- Average rainfall days in December: 6.9 days
The month with the highest number of rainy days is June (12.1 days).
The month with the least rainy days is February (3.9 days).
Average snowfall in December
Mattawamkeag, ME
- Average snowfall in December: 2.6"
The month with the highest snowfall is January (3.43").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Mattawamkeag, ME
- Average snowfall days in December: 9.6 days
The month with the highest number of snowfall days is February (11 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Mattawamkeag, ME
- Average daylight in December: 8h and 5min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in December: 4h and 1min
The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 3h and 30min).
Average sunshine days in December
Mattawamkeag, ME
- Average sunshine days in December: 18 days
The month with the most sunshine days is September (19.8 days).
The month with the least sunshine days is April (14.8 days).
Average UV index in December
Mattawamkeag, 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
Mattawamkeag, ME
- Average cloud cover in December: 56
The month with the most cloud cover is February (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 39).
Average visibility in December
Mattawamkeag, ME
- Average visibility in December: 5mi
The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (5mi).
The month with the lowest visibility is February (4mi).
Mattawamkeag, Maine, USA
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