December weather forecast and climate
Terryville, NY

Weather in December

The first month of the winter, December, is also a frosty month in Terryville, New York, with average temperature fluctuating between 36.5°F (2.5°C) and 43.7°F (6.5°C).

Temperature

In Terryville, the average high-temperature in December slightly decreases, from a cool 51.8°F (11°C) in November, to a chilly 43.7°F (6.5°C). The average low-temperature, in December, is 36.5°F (2.5°C).

Humidity

In Terryville, the average relative humidity in December is 73%.

Rainfall

The month with the most rainfall is December when the rain falls for 11.4 days and typically aggregates up to 3.58" (91mm) of precipitation.

Snowfall

Months with snowfall in Terryville are January through March, October through December. In Terryville, during 1.5 snowfall days, 1.06" (27mm) of snow is typically accumulated. In Terryville, during the entire year, snow falls for 12.6 days, and aggregates up to 5.59" (142mm) of snow.

Daylight

December has the shortest days of the year in Terryville, with an average of 9.3h of daylight.

Sunshine

In December, the average sunshine is 4.8h.

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 estimate of 2, and below, represents a minimal health vulnerability from the exposure to the Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 2 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. 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 Terryville?

In Terryville, New York, in December, the average high-temperature is 43.7°F (6.5°C), and the average low-temperature is 36.5°F (2.5°C).

What is the average humidity in December in Terryville?

In December, the average relative humidity in Terryville is 73%.

How many days does it rain in December in Terryville?

In December, in Terryville, the rain falls for 11.4 days. Throughout December, 3.58" (91mm) of precipitation is accumulated.

What is the wettest month in Terryville?

The month with the most rainfall is December when the rain falls for 11.4 days and typically aggregates up to 3.58" (91mm) of precipitation.

How many days does it snow in December in Terryville?

In Terryville, during December, snow falls for 1.5 days and regularly aggregates up to 1.06" (27mm) of snow.

What is the month with the shortest days in Terryville?

The month with the shortest days is December, with an average of 9.3h of daylight.

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

In Terryville, New York, the average length of the day in December is 9.3h.

How many hours of sunshine does Terryville have in December?

In December, the average sunshine in Terryville is 4.8h.

What is the month with the lowest UV index in Terryville?

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

How high is the UV index in December in Terryville?

The average daily maximum UV index in December in Terryville, New York, is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to the UV radiation.

Average temperature in December
Terryville, NY

Average temperature in December - Terryville, NY
  • Average high temperature in December: 43.7°F

The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (37.6°F).

  • Average low temperature in December: 36.5°F

Months with the highest average low temperature are July and August (71.1°F).
The coldest month (with the lowest average low temperature) is January (29.1°F).

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Average pressure in December
Terryville, NY

Average pressure in December - Terryville, NY
  • Average pressure in December: 30.06"

The month with the highest atmospheric pressure is November (30.09").
The month with the lowest atmospheric pressure is June (29.93").

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Average wind speed in December
Terryville, NY

Average wind speed in December - Terryville, NY
  • Average wind speed in December: 12.7mph

The windiest month (with the highest average wind speed) is January (12.9mph).
The calmest month (with the lowest average wind speed) is July (8.3mph).

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Average humidity in December
Terryville, NY

Average humidity in December - Terryville, NY
  • Average humidity in December: 73%

Months with the highest relative humidity are May and June (77%).
The month with the lowest relative humidity is November (71%).

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Average rainfall in December
Terryville, NY

Average rainfall in December - Terryville, NY
  • Average rainfall in December: 3.58"

The wettest month (with the highest rainfall) is December (3.58").
The driest month (with the least rainfall) is January (2.05").

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Average rainfall days in December
Terryville, NY

Average rainfall days in December - Terryville, NY
  • Average rainfall days in December: 11.4 days

The month with the highest number of rainy days is July (16.5 days).
The month with the least rainy days is January (6.8 days).

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Average snowfall in December
Terryville, NY

Average snowfall in December - Terryville, NY
  • Average snowfall in December: 1.06"

The month with the highest snowfall is March (2.13").
Months with the least snowfall are April, May, June, July, August and September (0").

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Average snowfall days in December
Terryville, NY

Average snowfall days in December - Terryville, NY
  • Average snowfall days in December: 1.5 days

The month with the highest number of snowfall days is February (4.4 days).
Months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in December /
Average sunshine in December
Terryville, NY

Average daylight in December / Average sunshine in December - Terryville, NY
  • Average daylight in December: 9.3h

The month with the longest days is June (Average daylight: 15.1h).
The month with the shortest days is December (Average daylight: 9.3h).

  • Average sunshine in December: 4.8h

The month with the most sunshine is July (Average sunshine: 10.6h).
The month with the least sunshine is February (Average sunshine: 4.7h).

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Average sunshine days in December
Terryville, NY

Average sunshine days in December - Terryville, NY
  • Average sunshine days in December: 17.6 days

The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is July (13 days).

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Average UV index in December
Terryville, NY

Average UV index in December - Terryville, NY
  • 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
Terryville, NY

Average cloud cover in December - Terryville, NY
  • Average cloud cover in December: 49

The month with the most cloud cover is December (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 28).

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Average visibility in December
Terryville, NY

Average visibility in December - Terryville, NY
  • Average visibility in December: 6mi

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

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