December weather forecast
Winn, ME

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Weather in December

December, the first month of the winter in Winn, is also a subzero cold month, with an average temperature ranging between min 19.8°F (-6.8°C) and max 30°F (-1.1°C).

Temperature

With December's arrival, Winn's weather changes as the average high-temperature falls from a wintry 41.7°F (5.4°C) in November to a freezing cold 30°F (-1.1°C). Throughout the December nights, Winn encounters a low-temperature of 19.8°F (-6.8°C).

Humidity

In December, the average relative humidity is 83%.

Rainfall

In Winn, in December, during 6.9 rainfall days, 1.06" (27mm) of precipitation is typically accumulated. In Winn, 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 Winn, in December, during 9.6 snowfall days, 2.6" (66mm) of snow is typically accumulated. In Winn, 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.
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 Winn, the average sunshine in December is 4.1h.

UV index

The months with the lowest UV index in Winn are January through March, October through December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: A maximum high UV index of 2 in December translates into the following recommendations:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Updated: Aug 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in December?

The average high-temperature, in December, in Winn, is 30°F (-1.1°C), while the average low-temperature is 19.8°F (-6.8°C).

What is the average humidity in December in Winn?

In Winn, Maine, the average relative humidity in December is 83%.

How much does it rain in Winn in December?

In December, the rain falls for 6.9 days. Throughout December, 1.06" (27mm) of precipitation is accumulated.

How much does it snow in December?

In Winn, in December, snow falls for 9.6 days, with typically accumulated 2.6" (66mm) of snow.

What is the month with the shortest days?

With an average of 8h and 48min of daylight, December has the shortest days of the year.

How many hours of daylight does Winn have in December?

In Winn, the average day length in December is 8h and 47min.

What time are sunrise and sunset in December?

In December, on the first day of the month, 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.

How long on average sun shines in December?

In Winn, the average sunshine duration in December is 4.1h.

What are the months with the lowest UV index?

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

How high is the UV index in December?

The average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a minimal hazard to health from exposure to the Sun's UV radiation.
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
Winn, ME

Average temperature in December - Winn, 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
Winn, ME

Average pressure in December - Winn, 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
Winn, ME

Average wind speed in December - Winn, 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
Winn, ME

Average humidity in December - Winn, 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
Winn, ME

Average rainfall in December - Winn, 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
Winn, ME

Average rainfall days in December - Winn, 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
Winn, ME

Average snowfall in December - Winn, 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
Winn, ME

Average snowfall days in December - Winn, 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
Winn, ME

Average daylight in December / Average sunshine in December - Winn, 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
Winn, ME

Average sunshine days in December - Winn, 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
Winn, ME

Average UV index in December - Winn, 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
Winn, ME

Average cloud cover in December - Winn, 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
Winn, ME

Average visibility in December - Winn, 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).

Winn, Maine, USA

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