December weather forecast
Rumford, ME

Weather in December

The first month of the winter, December, is also a subzero cold month in Rumford, Maine, with temperature in the range of an average high of 29.1°F (-1.6°C) and an average low of 19°F (-7.2°C).

Temperature

In December, the average high-temperature drops, from a wintry 40.5°F (4.7°C) in November, to a freezing cold 29.1°F (-1.6°C). In December, in Rumford, the average low-temperature is 19°F (-7.2°C).

Humidity

In December, the average relative humidity in Rumford is 82%.

Rainfall

In Rumford, during December, the rain falls for 9.5 days and regularly aggregates up to 2.52" (64mm) of precipitation. Throughout the year, in Rumford, there are 146.3 rainfall days, and 28.31" (719mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Rumford, Maine, are January through May, October through December. In Rumford, snow falls for 12.5 days, with typically accumulated 7.44" (189mm) of snow. Throughout the year, in Rumford, there are 69.3 snowfall days, and 48.15" (1223mm) of snow is accumulated.

Daylight

December has the shortest days of the year in Rumford, with an average of 8.9h of daylight.

Sunshine

The average sunshine in Rumford is 4.3h.

UV index

February and December, with an average maximum UV index of 1, are months with the lowest UV index in Rumford. A UV Index reading of 2, and below, represents a low health risk from the exposure to the Sun's UV radiation for the ordinary person.
Note: The daily maximum UV index of 1 interpret into the following advice:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the average humidity in December in Rumford?

In December, the average relative humidity in Rumford, Maine, is 82%.

How many days does it rain in December in Rumford?

In Rumford, in December, it is raining for 9.5 days, with typically 2.52" (64mm) of accumulated precipitation.

How many days does it snow in December in Rumford?

In Rumford, in December, snow falls for 12.5 days, with typically accumulated 7.44" (189mm) of snow.

What is the month with the shortest days in Rumford?

December has the shortest days of the year in Rumford, with an average of 8.9h of daylight.

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

In December, the average length of the day in Rumford, Maine, is 8.9h.

How long on average sun shines in December in Rumford?

In Rumford, the average sunshine in December is 4.3h.

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

Months with the lowest UV index in Rumford are February and December, with an average maximum UV index of 1.

What is the UV index reading in December in Rumford?

The average daily maximum UV index in December in Rumford, Maine, is 1. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from the exposure to the Sun's UV radiation.

Average temperature in December
Rumford, ME

Average temperature in December - Rumford, ME
  • Average high temperature in December: -1.6°C

The warmest month (with the highest average high temperature) is July (24.9°C).
The month with the lowest average high temperature is January (-4.6°C).

  • Average low temperature in December: -7.2°C

The month with the highest average low temperature is July (13°C).
The coldest month (with the lowest average low temperature) is January (-12.2°C).

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Average pressure in December
Rumford, ME

Average pressure in December - Rumford, ME
  • Average pressure in December: 1016.7mbar

The month with the highest atmospheric pressure is November (1017.6mbar).
The month with the lowest atmospheric pressure is June (1012.7mbar).

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Average wind speed in December
Rumford, ME

Average wind speed in December - Rumford, ME
  • Average wind speed in December: 9.9km/h

The windiest month (with the highest average wind speed) is March (10.9km/h).
The calmest month (with the lowest average wind speed) is August (7.3km/h).

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Average humidity in December
Rumford, ME

Average humidity in December - Rumford, ME
  • Average humidity in December: 82%

The months with the highest relative humidity are January, February and March (86%).
The months with the lowest relative humidity are May and November (76%).

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Average rainfall in December
Rumford, ME

Average rainfall in December - Rumford, ME
  • Average rainfall in December: 64mm

The wettest month (with the highest rainfall) is October (84mm).
The driest month (with the least rainfall) is July (47mm).

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Average rainfall days in December
Rumford, ME

Average rainfall days in December - Rumford, ME
  • Average rainfall days in December: 9.5 days

The month with the highest number of rainy days is June (15.5 days).
The month with the least rainy days is February (8.2 days).

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Average snowfall in December
Rumford, ME

Average snowfall in December - Rumford, ME
  • Average snowfall in December: 189mm

The month with the highest snowfall is February (312mm).
The months with the least snowfall are June, July, August and September (0mm).

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Average snowfall days in December
Rumford, ME

Average snowfall days in December - Rumford, ME
  • Average snowfall days in December: 12.5 days

The month with the highest number of snowfall days is February (15.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Rumford, ME
  • Average daylight in December: 8.9h

The month with the longest days is June (Average daylight: 15.5h).
The month with the shortest days is December (Average daylight: 8.9h).

  • Average sunshine in December: 4.3h

The month with the most sunshine is August (Average sunshine: 9.7h).
The month with the least sunshine is February (Average sunshine: 4h).

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Average sunshine days in December
Rumford, ME

Average sunshine days in December - Rumford, ME
  • Average sunshine days in December: 13.8 days

The month with the most sunshine days is September (16.7 days).
The months with the least sunshine days are February and April (11.3 days).

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Average UV index in December
Rumford, ME

Average UV index in December - Rumford, ME
  • Average UV index in December: 1

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are February and December (UV index 1).

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Average cloud cover in December
Rumford, ME

Average cloud cover in December - Rumford, ME
  • Average cloud cover in December: 55

The month with the most cloud cover is February (Cloud cover 57).
The month with the least cloud cover is September (Cloud cover 40).

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Average visibility in December
Rumford, ME

Average visibility in December - Rumford, ME
  • Average visibility in December: 8km

The months with the highest visibility are May, June, October, November and December (8km).
The months with the lowest visibility are January, February, March, April, July, August and September (7km).

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