December weather forecast
Hermon, ME

Weather in December

The first month of the winter, December, is still a cold month in Hermon, Maine, with temperature in the range of an average low of 21.7°F (-5.7°C) and an average high of 32.4°F (0.2°C).

Temperature

In December, the average high-temperature decreases, from a chilly 43.3°F (6.3°C) in November, to a cold 32.4°F (0.2°C). In December, the average low-temperature is 21.7°F (-5.7°C).

Humidity

In December, the average relative humidity in Hermon is 81%.

Rainfall

In Hermon, during 9.5 rainfall days, 1.93" (49mm) of precipitation is typically accumulated. In Hermon, during the entire year, the rain falls for 130.5 days and collects up to 18.7" (475mm) of precipitation.

Snowfall

Months with snowfall in Hermon are January through May, October through December. In Hermon, Maine, in December, during 8.7 snowfall days, 3.86" (98mm) of snow is typically accumulated. In Hermon, during the entire year, snow falls for 50.1 days, and aggregates up to 21.14" (537mm) of snow.

Daylight

With an average of 8.9h of daylight, December has the shortest days of the year in Hermon.

Sunshine

The average sunshine in December is 4.4h.

UV index

Months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from the exposure to the Sun's UV radiation for the ordinary person.
Note: The daily maximum UV index of 2 in December interpret into the following advice:
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. 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. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the average humidity in December in Hermon?

In Hermon, the average relative humidity in December is 81%.

How much does it rain in Hermon in December?

In December, in Hermon, Maine, the rain falls for 9.5 days. Throughout December, 1.93" (49mm) of precipitation is accumulated.

How many days does it snow in December in Hermon?

In Hermon, in December, snow falls for 8.7 days, with typically accumulated 3.86" (98mm) of snow.

What is the month with the shortest days in Hermon?

With an average of 8.9h of daylight, December has the shortest days of the year in Hermon, Maine.

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

The average length of the day in December in Hermon, Maine, is 8.9h.

How many hours of sunshine does Hermon have in December?

In December, the average sunshine in Hermon is 4.4h.

When is the lowest UV index in Hermon?

Months with the lowest UV index in Hermon, Maine, are January through March, November and December, with an average maximum UV index of 2.

How high is the UV index in December in Hermon?

In Hermon, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to the Sun's UV rays.

Average temperature in December
Hermon, ME

Average temperature in December - Hermon, ME
  • Average high temperature in December: 32.4°F

The warmest month (with the highest average high temperature) is July (77.2°F).
The month with the lowest average high temperature is January (26.4°F).

  • Average low temperature in December: 21.7°F

The month with the highest average low temperature is July (57.4°F).
The coldest month (with the lowest average low temperature) is January (13.6°F).

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Average pressure in December
Hermon, ME

Average pressure in December - Hermon, ME
  • Average pressure in December: 30"

The month with the highest atmospheric pressure is September (30.04").
The month with the lowest atmospheric pressure is June (29.91").

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Average wind speed in December
Hermon, ME

Average wind speed in December - Hermon, ME
  • Average wind speed in December: 7.5mph

The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

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Average humidity in December
Hermon, ME

Average humidity in December - Hermon, ME
  • Average humidity in December: 81%

The month with the highest relative humidity is February (85%).
Months with the lowest relative humidity are April and May (77%).

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Average rainfall in December
Hermon, ME

Average rainfall in December - Hermon, ME
  • Average rainfall in December: 1.93"

The wettest month (with the highest rainfall) is April (2.05").
The driest month (with the least rainfall) is July (1.1").

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Average rainfall days in December
Hermon, ME

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

The month with the highest number of rainy days is June (14.6 days).
The month with the least rainy days is January (5.7 days).

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Average snowfall in December
Hermon, ME

Average snowfall in December - Hermon, ME
  • Average snowfall in December: 3.86"

The month with the highest snowfall is January (4.96").
Months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Hermon, ME

Average snowfall days in December - Hermon, ME
  • Average snowfall days in December: 8.7 days

The month with the highest number of snowfall days is February (11.6 days).
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
Hermon, ME

Average daylight in December / Average sunshine in December - Hermon, 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: 4.4h

The month with the most sunshine is August (Average sunshine: 9.9h).
The month with the least sunshine is February (Average sunshine: 4h).

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Average sunshine days in December
Hermon, ME

Average sunshine days in December - Hermon, ME
  • Average sunshine days in December: 15.2 days

The month with the most sunshine days is September (18.6 days).
The month with the least sunshine days is April (12.1 days).

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Average UV index in December
Hermon, ME

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

Months with the highest UV index are June, July and August (UV index 5).
Months with the lowest UV index are January, February, March, November and December (UV index 2).

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Average cloud cover in December
Hermon, ME

Average cloud cover in December - Hermon, ME
  • Average cloud cover in December: 52

The month with the most cloud cover is February (Cloud cover 56).
Months with the least cloud cover are August and September (Cloud cover 39).

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Average visibility in December
Hermon, ME

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

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

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