December weather forecast
South Plattsburgh, NY

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Weather in December

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

Temperature

December is characterized by a reduction in the average high-temperature, from a cold 42.3°F (5.7°C) in November to a freezing cold 30.9°F (-0.6°C). Throughout the month of December, the nighttime temperature dips to an average of 20.7°F (-6.3°C).

Humidity

In December, the average relative humidity is 83%.

Rainfall

In South Plattsburgh, New York, in December, during 11 rainfall days, 2.09" (53mm) of precipitation is typically accumulated. Throughout the year, in South Plattsburgh, there are 162.6 rainfall days, and 27.6" (701mm) of precipitation is accumulated.

Snowfall

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

Daylight

With an average of 8h and 54min of daylight, December has the shortest days of the year in South Plattsburgh.
On the first day of December in South Plattsburgh, sunrise is at 7:11 am and sunset at 4:15 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 4:23 pm EST.

Sunshine

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

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: During December, 1 as the daily maximum UV index converts into the following advice:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
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Frequently asked questions

How cold is December in South Plattsburgh?

An average high-temperature, in December, in South Plattsburgh, 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 South Plattsburgh?

In December, the average relative humidity in South Plattsburgh is 83%.

How many days does it rain in December in South Plattsburgh?

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

How much does it snow in South Plattsburgh in December?

In South Plattsburgh, New York, during December, snow falls for 14.5 days and regularly aggregates up to 5.59" (142mm) of snow.

What is the month with the shortest days in South Plattsburgh?

December has the shortest days of the year in South Plattsburgh, New York, with an average of 8h and 54min of daylight.

How many hours of daylight does South Plattsburgh have in December?

In South Plattsburgh, New York, the average day length in December is 8h and 53min.

What time are sunrise and sunset in December in South Plattsburgh?

On the first day of December, sunrise is at 7:11 am and sunset at 4:15 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 4:23 pm EST.

How long on average sun shines in December in South Plattsburgh?

The average sunshine duration in December is 4h.

What are the months with the lowest UV index in South Plattsburgh?

The months with the lowest UV index in South Plattsburgh are January and December, with an average maximum UV index of 1.

What is the UV index reading in December in South Plattsburgh?

In South Plattsburgh, the average daily maximum UV index in December is 1. A UV Index value of 2, and less, symbolizes a low health threat from unsafe exposure to Sun's UV rays.
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
South Plattsburgh, NY

Average temperature in December - South 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
South Plattsburgh, NY

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

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

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Average wind speed in December
South Plattsburgh, NY

Average wind speed in December - South 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
South Plattsburgh, NY

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

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

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Average rainfall in December
South Plattsburgh, NY

Average rainfall in December - South 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
South Plattsburgh, NY

Average rainfall days in December - South 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
South Plattsburgh, NY

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

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

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Average snowfall days in December
South Plattsburgh, NY

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

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

Average daylight in December / Average sunshine in December - South Plattsburgh, NY
  • Average daylight in December: 8h and 5min

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in December: 4h and 0min

The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 3h and 36min).

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Average sunshine days in December
South Plattsburgh, NY

Average sunshine days in December - South 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
South Plattsburgh, NY

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

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

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Average cloud cover in December
South Plattsburgh, NY

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

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

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Average visibility in December
South Plattsburgh, NY

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

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

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South Plattsburgh, New York, USA

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