December weather forecast and climate
Plattsburgh, NY

A sunny and dry day in the townscape of Plattsburgh, New York, with a view of the iconic tower next to the river, dry trees, and a hilly landscape view
A sunny and dry day in the townscape of Plattsburgh, New York, with a view of the iconic tower next to the river, dry trees, and a hilly landscape view

Weather in December

December, the first month of the winter, in Plattsburgh, is also a subzero cold month, with average temperature varying between 30.9°F (-0.6°C) and 20.7°F (-6.3°C).

Temperature

In Plattsburgh, the average high-temperature in December decreases, from a cold 42.3°F (5.7°C) in November, to a freezing cold 30.9°F (-0.6°C). In Plattsburgh, the average low-temperature is 20.7°F (-6.3°C).

Humidity

In Plattsburgh, the average relative humidity is 83%.

Rainfall

In December, in Plattsburgh, the rain falls for 11 days. Throughout December, 2.09" (53mm) of precipitation is accumulated. In Plattsburgh, during the entire year, the rain falls for 162.6 days and collects up to 27.6" (701mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Plattsburgh, New York. In Plattsburgh, in December, during 14.5 snowfall days, 5.59" (142mm) of snow is typically accumulated. Throughout the year, in Plattsburgh, there are 78.2 snowfall days, and 37.13" (943mm) of snow is accumulated.

Daylight

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

Sunshine

In December, the average sunshine is 4h.

UV index

January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to the Sun's UV rays for the average person.
Note: The average daily UV index of 1 transform into the following instructions:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always 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. 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 Plattsburgh?

In Plattsburgh, in December, the average high-temperature is 30.9°F (-0.6°C), and the average low-temperature is 20.7°F (-6.3°C).

What is the average humidity in December in Plattsburgh?

The average relative humidity in December is 83%.

How much does it rain in Plattsburgh in December?

In Plattsburgh, in December, it is raining for 11 days, with typically 2.09" (53mm) of accumulated precipitation.

How much does it snow in Plattsburgh in December?

In Plattsburgh, New York, in December, snow falls for 14.5 days, with typically accumulated 5.59" (142mm) of snow.

What is the month with the shortest days in Plattsburgh?

The month with the shortest days is December, with an average of 8.9h of daylight.

How many hours of daylight does Plattsburgh have in December?

In Plattsburgh, New York, the average length of the day in December is 8.9h.

How many hours of sunshine does Plattsburgh have in December?

In Plattsburgh, New York, the average sunshine in December is 4h.

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

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

What is the UV index intensity in December in Plattsburgh?

In December, the average daily maximum UV index is 1. A UV Index reading of 2, and below, represents a minimal hazard to health from the exposure to the Sun's UV radiation.

Average temperature in December
Plattsburgh, NY

Average temperature in December - Plattsburgh, NY
  • Average high temperature in December: 30.9°F

The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (24.8°F).

  • Average low temperature in December: 20.7°F

The month with the highest average low temperature is July (59.4°F).
The coldest month (with the lowest average low temperature) is January (12.4°F).

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Average pressure in December
Plattsburgh, NY

Average pressure in December - Plattsburgh, NY
  • Average pressure in December: 30.05"

The month with the highest atmospheric pressure is November (30.07").
The month with the lowest atmospheric pressure is June (29.91").

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Average wind speed in December
Plattsburgh, NY

Average wind speed in December - Plattsburgh, NY
  • Average wind speed in December: 6.6mph

The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).

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Average humidity in December
Plattsburgh, NY

Average humidity in December - Plattsburgh, NY
  • Average humidity in December: 83%

Months with the highest relative humidity are January and February (86%).
Months with the lowest relative humidity are April and May (75%).

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Average rainfall in December
Plattsburgh, NY

Average rainfall in December - Plattsburgh, NY
  • Average rainfall in December: 2.09"

The wettest month (with the highest rainfall) is June (3.15").
The driest month (with the least rainfall) is February (1.73").

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Average rainfall days in December
Plattsburgh, NY

Average rainfall days in December - Plattsburgh, NY
  • Average rainfall days in December: 11 days

The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is February (6.8 days).

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Average snowfall in December
Plattsburgh, NY

Average snowfall in December - Plattsburgh, NY
  • Average snowfall in December: 5.59"

The month with the highest snowfall is February (10").
Months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Plattsburgh, NY

Average snowfall days in December - Plattsburgh, NY
  • Average snowfall days in December: 14.5 days

The month with the highest number of snowfall days is January (19.3 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
Plattsburgh, NY

Average daylight in December / Average sunshine in December - Plattsburgh, NY
  • 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: 4h

The month with the most sunshine is August (Average sunshine: 10.6h).
The month with the least sunshine is February (Average sunshine: 3.6h).

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Average sunshine days in December
Plattsburgh, NY

Average sunshine days in December - Plattsburgh, NY
  • Average sunshine days in December: 10.5 days

The month with the most sunshine days is September (14.9 days).
The month with the least sunshine days is February (8.6 days).

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Average UV index in December
Plattsburgh, NY

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

Months with the highest UV index are May, June, July and August (UV index 5).
Months with the lowest UV index are January and December (UV index 1).

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Average cloud cover in December
Plattsburgh, NY

Average cloud cover in December - Plattsburgh, NY
  • Average cloud cover in December: 60

The month with the most cloud cover is February (Cloud cover 64).
Months with the least cloud cover are July, August and September (Cloud cover 31).

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Average visibility in December
Plattsburgh, NY

Average visibility in December - Plattsburgh, NY
  • Average visibility in December: 5mi

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

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