December weather forecast
Clarkson, NY

Weather in December

December, the first month of the winter in Clarkson, is also a wintry month, with an average temperature ranging between min 28.2°F (-2.1°C) and max 36.1°F (2.3°C).

Temperature

In Clarkson, the average high-temperature in December decreases from a frosty 45.7°F (7.6°C) in November to a cold 36.1°F (2.3°C). The average low-temperature, in December, is 28.2°F (-2.1°C).

Humidity

The average relative humidity in December is 82%.

Rainfall

In Clarkson, it is raining for 10.1 days, with typically 1.93" (49mm) of accumulated precipitation. In Clarkson, New York, during the entire year, the rain falls for 163.5 days and collects up to 24.61" (625mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Clarkson. In Clarkson, in December, during 14.3 snowfall days, 4.13" (105mm) of snow is typically accumulated. In Clarkson, during the entire year, snow falls for 67.2 days and aggregates up to 21.97" (558mm) of snow.

Daylight

December has the shortest days of the year in Clarkson, with an average of 9h and 2min of daylight.
On the first day of December in Clarkson, sunrise is at 7:23 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 7:43 am and sunset at 4:45 pm EST.

Sunshine

In December, the average sunshine is 3.2h.

UV index

January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for average individuals.
Note: The average daily UV index of 1 in December transform into the following instructions:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. 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 temperature in December in Clarkson?

In December, in Clarkson, New York, the average high-temperature is 36.1°F (2.3°C), and the average low-temperature is 28.2°F (-2.1°C).

What is the average humidity in December in Clarkson?

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

How many days does it rain in December in Clarkson?

In December, in Clarkson, New York, the rain falls for 10.1 days. Throughout December, 1.93" (49mm) of precipitation is accumulated.

How much does it snow in Clarkson in December?

In Clarkson, in December, during 14.3 snowfall days, 4.13" (105mm) of snow is typically accumulated.

What is the month with the shortest days in Clarkson?

The month with the shortest days is December, with an average of 9h and 2min of daylight.

How many hours of daylight does Clarkson have in December?

In Clarkson, the average day length in December is 9h and 2min.

When are sunrise and sunset in December in Clarkson?

On the first day of December in Clarkson, New York, sunrise is at 7:23 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 7:43 am and sunset at 4:45 pm EST.

How long on average sun shines in December in Clarkson?

In Clarkson, the average sunshine duration in December is 3.2h.

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

The months with the lowest UV index in Clarkson, New York, are January and December, with an average maximum UV index of 1.

How high is the UV index in December in Clarkson?

In Clarkson, New York, the average daily maximum UV index in December is 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to 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
Clarkson, NY

Average temperature in December - Clarkson, NY
  • Average high temperature in December: 36.1°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 (29.7°F).

  • Average low temperature in December: 28.2°F

The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).

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Average pressure in December
Clarkson, NY

Average pressure in December - Clarkson, NY
  • Average pressure in December: 30.06"Hg

The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in December
Clarkson, NY

Average wind speed in December - Clarkson, NY
  • Average wind speed in December: 11.5mph

The windiest month (with the highest average wind speed) is January (12.4mph).
The calmest month (with the lowest average wind speed) is July (7.4mph).

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Average humidity in December
Clarkson, NY

Average humidity in December - Clarkson, NY
  • Average humidity in December: 82%

The months with the highest relative humidity are January and February (84%).
The months with the lowest relative humidity are August and September (76%).

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Average rainfall in December
Clarkson, NY

Average rainfall in December - Clarkson, NY
  • Average rainfall in December: 1.93"

The wettest month (with the highest rainfall) is May (2.72").
The driest month (with the least rainfall) is January (1.46").

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Average rainfall days in December
Clarkson, NY

Average rainfall days in December - Clarkson, NY
  • Average rainfall days in December: 10.1 days

The months with the highest number of rainy days are August and October (17.3 days).
The month with the least rainy days is February (7.1 days).

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Average snowfall in December
Clarkson, NY

Average snowfall in December - Clarkson, NY
  • Average snowfall in December: 4.13"

The month with the highest snowfall is February (5.43").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Clarkson, NY

Average snowfall days in December - Clarkson, NY
  • Average snowfall days in December: 14.3 days

The month with the highest number of snowfall days is January (16.3 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
Clarkson, NY

Average daylight in December / Average sunshine in December - Clarkson, NY
  • Average daylight in December: 9h and 2min

The month with the longest days is June (Average daylight: 15h and 20min).
The month with the shortest days is December (Average daylight: 9h and 2min).

  • Average sunshine in December: 3h and 12min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The months with the least sunshine are January and February (Average sunshine: 2h and 42min).

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Average sunshine days in December
Clarkson, NY

Average sunshine days in December - Clarkson, NY
  • Average sunshine days in December: 7.8 days

The month with the most sunshine days is September (13.4 days).
The month with the least sunshine days is January (6.9 days).

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Average UV index in December
Clarkson, NY

Average UV index in December - Clarkson, NY
  • Average UV index in December: 1

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

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Average cloud cover in December
Clarkson, NY

Average cloud cover in December - Clarkson, NY
  • Average cloud cover in December: 69

The month with the most cloud cover is January (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 27).

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Average visibility in December
Clarkson, NY

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

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

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