December weather forecast and climate
Gilman, CT

Weather in December

The first month of the winter, December, is still a cold month in Gilman, Connecticut, with average temperature fluctuating between 29.8°F (-1.2°C) and 40.8°F (4.9°C).

Temperature

In Gilman, the average high-temperature in December decreases, from a cool 50.2°F (10.1°C) in November, to a cold 40.8°F (4.9°C). In December, in Gilman, Connecticut, the average low-temperature is 29.8°F (-1.2°C).

Humidity

In December, the average relative humidity in Gilman is 76%.

Rainfall

December is the month with the most rainfall in Gilman. Rain falls for 11.3 days and accumulates 3.7" (94mm) of precipitation.

Snowfall

January through May, November and December are months with snowfall in Gilman. In Gilman, snow falls for 4.8 days, with typically accumulated 1.73" (44mm) of snow. In Gilman, during the entire year, snow falls for 26.4 days, and aggregates up to 11.14" (283mm) of snow.

Daylight

December has the shortest days of the year in Gilman, with an average of 9.2h of daylight.

Sunshine

December has the least sunshine of the year, with an average of 4.6h of sunshine.

UV index

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low health risk from the exposure to the Sun's UV radiation for the average person.
Note: In December, the average maximum UV index of 2 translate into the following recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the temperature in December in Gilman?

The average high-temperature, in December, in Gilman, Connecticut, is 40.8°F (4.9°C), while the average low-temperature is 29.8°F (-1.2°C).

What is the average humidity in December in Gilman?

In December, the average relative humidity is 76%.

How much does it rain in Gilman in December?

In Gilman, Connecticut, during December, the rain falls for 11.3 days and regularly aggregates up to 3.7" (94mm) of precipitation.

What is the wettest month in Gilman?

December is the month with the most rainfall. Rain falls for 11.3 days and accumulates 3.7" (94mm) of precipitation.

How many days does it snow in December in Gilman?

In Gilman, in December, snow falls for 4.8 days, with typically accumulated 1.73" (44mm) of snow.

What is the month with the shortest days in Gilman?

With an average of 9.2h of daylight, December has the shortest days of the year in Gilman.

How many hours of daylight does Gilman have in December?

The average length of the day in December in Gilman, Connecticut, is 9.2h.

What is the month with the least sunshine in Gilman?

With an average of 4.6h of sunshine, December has the least sunshine of the year in Gilman.

How many hours of sunshine does Gilman have in December?

In December, the average sunshine is 4.6h.

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

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

What is the UV index reading in December in Gilman?

In December, the average daily maximum UV index in Gilman is 2. A UV Index of 2, and less, symbolizes a low health risk from the exposure to the Sun's UV rays.

Average temperature in December
Gilman, CT

Average temperature in December - Gilman, CT
  • Average high temperature in December: 40.8°F

The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (34.9°F).

  • Average low temperature in December: 29.8°F

The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).

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Average pressure in December
Gilman, CT

Average pressure in December - Gilman, CT
  • Average pressure in December: 30.05"

The month with the highest atmospheric pressure is November (30.08").
The month with the lowest atmospheric pressure is June (29.93").

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Average wind speed in December
Gilman, CT

Average wind speed in December - Gilman, CT
  • Average wind speed in December: 8.9mph

The windiest month (with the highest average wind speed) is January (9.4mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).

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Average humidity in December
Gilman, CT

Average humidity in December - Gilman, CT
  • Average humidity in December: 76%

Months with the highest relative humidity are February, June, July and September (78%).
The month with the lowest relative humidity is April (72%).

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Average rainfall in December
Gilman, CT

Average rainfall in December - Gilman, CT
  • Average rainfall in December: 3.7"

The wettest month (with the highest rainfall) is December (3.7").
The driest month (with the least rainfall) is September (1.61").

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Average rainfall days in December
Gilman, CT

Average rainfall days in December - Gilman, CT
  • Average rainfall days in December: 11.3 days

Months with the highest number of rainy days are May and July (16.3 days).
The month with the least rainy days is January (9 days).

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Average snowfall in December
Gilman, CT

Average snowfall in December - Gilman, CT
  • Average snowfall in December: 1.73"

The month with the highest snowfall is March (3.43").
Months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in December
Gilman, CT

Average snowfall days in December - Gilman, CT
  • Average snowfall days in December: 4.8 days

The month with the highest number of snowfall days is February (7.3 days).
Months with the least snowfall days are June, July, August, September and October (0 days).

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Average daylight in December /
Average sunshine in December
Gilman, CT

Average daylight in December / Average sunshine in December - Gilman, CT
  • Average daylight in December: 9.2h

The month with the longest days is June (Average daylight: 15.2h).
The month with the shortest days is December (Average daylight: 9.2h).

  • Average sunshine in December: 4.6h

Months with the most sunshine are July and August (Average sunshine: 10.2h).
The month with the least sunshine is December (Average sunshine: 4.6h).

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Average sunshine days in December
Gilman, CT

Average sunshine days in December - Gilman, CT
  • Average sunshine days in December: 15.9 days

The month with the most sunshine days is November (17.4 days).
The month with the least sunshine days is June (11.6 days).

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Average UV index in December
Gilman, CT

Average UV index in December - Gilman, CT
  • Average UV index in December: 2

Months with the highest UV index are June, July and August (UV index 6).
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
Gilman, CT

Average cloud cover in December - Gilman, CT
  • Average cloud cover in December: 49

The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 34).

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Average visibility in December
Gilman, CT

Average visibility in December - Gilman, CT
  • Average visibility in December: 6mi

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

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