December weather forecast
Piermont, NY

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Weather in December

December, the first month of the winter in Piermont, is also a wintry month, with an average temperature ranging between min 30.7°F (-0.7°C) and max 41°F (5°C).

Temperature

In December, the average high-temperature goes from a cool 50.9°F (10.5°C) in November to a cold 41°F (5°C). In December, Piermont experiences an average nighttime temperature of 30.7°F (-0.7°C).

Humidity

February and December, with an average relative humidity of 77%, are the most humid months.

Rainfall

In Piermont, during December, the rain falls for 10.4 days and regularly aggregates up to 3.11" (79mm) of precipitation. Throughout the year, there are 151.8 rainfall days, and 30.79" (782mm) of precipitation is accumulated.

Snowfall

January through April, October through December are months with snowfall. In December, in Piermont, New York, it is snowing for 3.5 days. Throughout December, 1.85" (47mm) of snow is accumulated. In Piermont, New York, during the entire year, snow falls for 19 days and aggregates up to 9.41" (239mm) of snow.

Daylight

With an average of 9h and 18min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:01 am and sunset at 4:28 pm. On the last day of December, in Piermont, sunrise is at 7:20 am and sunset at 4:37 pm EST.

Sunshine

In Piermont, the average sunshine in December is 4.9h.

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 value of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The UV index of 2 during December leads to these advisories:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
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Frequently asked questions

Is it cold in Piermont during December?

Piermont in December has an average high-temperature of 41°F (5°C) and an average low-temperature of 30.7°F (-0.7°C). In August, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is calculated to be 87.8°F (31°C).

What is the most humid month in Piermont?

February and December, with an average relative humidity of 77%, are most humid months in Piermont, New York.

What is the average humidity in December in Piermont?

In Piermont, the average relative humidity in December is 77%.

How much does it rain in Piermont in December?

In Piermont, in December, it is raining for 10.4 days, with typically 3.11" (79mm) of accumulated precipitation.

How much does it snow in Piermont in December?

In December, in Piermont, it is snowing for 3.5 days. Throughout December, 1.85" (47mm) of snow is accumulated.

What is the month with the shortest days in Piermont?

With an average of 9h and 18min of daylight, December has the shortest days of the year in Piermont.

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

In Piermont, New York, the average day length in December is 9h and 17min.

When is the sunrise / sunset in December in Piermont?

In December, on the first day of the month, sunrise is at 7:01 am and sunset at 4:28 pm. On the last day of the month, in Piermont, sunrise is at 7:20 am and sunset at 4:37 pm EST.

How long on average sun shines in December in Piermont?

In December, the average sunshine duration in Piermont, New York, is 4.9h.

When is the lowest UV index in Piermont?

The 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 intensity in December in Piermont?

The average daily maximum UV index in December in Piermont is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from 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
Piermont, NY

Average temperature in December - Piermont, NY
  • Average high temperature in December: 41°F

The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (35.2°F).

  • Average low temperature in December: 30.7°F

The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).

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Average pressure in December
Piermont, NY

Average pressure in December - Piermont, NY
  • Average pressure in December: 30.07"Hg

The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in December
Piermont, NY

Average wind speed in December - Piermont, NY
  • Average wind speed in December: 7.5mph

The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).

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Average humidity in December
Piermont, NY

Average humidity in December - Piermont, NY
  • Average humidity in December: 77%

The months with the highest relative humidity are February and December (77%).
The month with the lowest relative humidity is August (70%).

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Average rainfall in December
Piermont, NY

Average rainfall in December - Piermont, NY
  • Average rainfall in December: 3.11"

The wettest month (with the highest rainfall) is July (3.35").
The driest month (with the least rainfall) is January (1.89").

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Average rainfall days in December
Piermont, NY

Average rainfall days in December - Piermont, NY
  • Average rainfall days in December: 10.4 days

The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is January (6.8 days).

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Average snowfall in December
Piermont, NY

Average snowfall in December - Piermont, NY
  • Average snowfall in December: 1.85"

The month with the highest snowfall is March (2.8").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in December
Piermont, NY

Average snowfall days in December - Piermont, NY
  • Average snowfall days in December: 3.5 days

The month with the highest number of snowfall days is February (5.8 days).
The 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
Piermont, NY

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

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in December: 4h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

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Average sunshine days in December
Piermont, NY

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

The months with the most sunshine days are January and November (20 days).
The month with the least sunshine days is July (10.9 days).

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Average UV index in December
Piermont, NY

Average UV index in December - Piermont, NY
  • Average UV index in December: 2

The months with the highest UV index are June, July and August (UV index 6).
The 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
Piermont, NY

Average cloud cover in December - Piermont, NY
  • Average cloud cover in December: 48

The months with the most cloud cover are February, March and December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 32).

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Average visibility in December
Piermont, NY

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

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

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Piermont, New York, USA

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