December weather forecast
Crompond, NY

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Weather in December

The first month of the winter, December, is also a wintry month in Crompond, New York, with an average temperature varying between 39.9°F (4.4°C) and 28.8°F (-1.8°C).

Temperature

With December's onset, the average high-temperature recedes from November's chilly 49.5°F (9.7°C) to an icy 39.9°F (4.4°C). The temperature lowers to an average of 28.8°F (-1.8°C) during December nights.

Humidity

February, October and December, with an average relative humidity of 79%, are the most humid months.

Rainfall

In December, the rain falls for 9.5 days. Throughout December, 3.11" (79mm) of precipitation is accumulated. Throughout the year, there are 148.4 rainfall days, and 30.55" (776mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Crompond are January through May, October through December. In Crompond, in December, during 4.7 snowfall days, 2.32" (59mm) of snow is typically accumulated. Throughout the year, in Crompond, New York, there are 24.4 snowfall days, and 12.87" (327mm) of snow is accumulated.

Daylight

With an average of 9h and 18min of daylight, December has the shortest days of the year in Crompond.
On the first day of December in Crompond, sunrise is at 7:02 am and sunset at 4:26 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 4:36 pm EST.

Sunshine

In Crompond, 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 reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for the average person.
Note: A maximum high UV index of 2 in December translates into the following recommendations:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
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Frequently asked questions

How cold does it get in Crompond in December?

An average high-temperature, in December, in Crompond, is 39.9°F (4.4°C) and the average low-temperature is 28.8°F (-1.8°C). In August, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines air temperature and relative humidity, is calculated to be 87.8°F (31°C).

What are the most humid months in Crompond?

The months with the highest humidity in Crompond are February, October and December, with an average relative humidity of 79%.

What is the average humidity in December in Crompond?

In December, the average relative humidity is 79%.

How much does it rain in Crompond in December?

In December, in Crompond, the rain falls for 9.5 days. Throughout December, 3.11" (79mm) of precipitation is accumulated.

How many days does it snow in December in Crompond?

In Crompond, New York, in December, during 4.7 snowfall days, 2.32" (59mm) of snow is typically accumulated.

What is the month with the shortest days in Crompond?

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

How many hours of daylight does Crompond have in December?

The average day length in December in Crompond is 9h and 15min.

When are sunrise and sunset in December in Crompond?

In December, on the first day of the month, sunrise is at 7:02 am and sunset at 4:26 pm. On the last day of the month, in Crompond, New York, sunrise is at 7:20 am and sunset at 4:36 pm EST.

How many hours of sunshine does Crompond have in December?

The average sunshine duration in December in Crompond is 4.9h.

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

The months with the lowest UV index in Crompond are January through March, November and December, with an average maximum UV index of 2.

How high is the UV index in December in Crompond?

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

Average temperature in December - Crompond, NY
  • Average high temperature in December: 39.9°F

The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (33.8°F).

  • Average low temperature in December: 28.8°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (21.9°F).

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Average pressure in December
Crompond, NY

Average pressure in December - Crompond, 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
Crompond, NY

Average wind speed in December - Crompond, NY
  • Average wind speed in December: 6.8mph

The windiest months (with the highest average wind speed) are January and March (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).

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Average humidity in December
Crompond, NY

Average humidity in December - Crompond, NY
  • Average humidity in December: 79%

The months with the highest relative humidity are February, October and December (79%).
The month with the lowest relative humidity is April (73%).

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Average rainfall in December
Crompond, NY

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

The wettest month (with the highest rainfall) is July (3.31").
The driest month (with the least rainfall) is February (1.81").

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Average rainfall days in December
Crompond, NY

Average rainfall days in December - Crompond, NY
  • Average rainfall days in December: 9.5 days

The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (6.5 days).

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Average snowfall in December
Crompond, NY

Average snowfall in December - Crompond, NY
  • Average snowfall in December: 2.32"

The month with the highest snowfall is March (3.39").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Crompond, NY

Average snowfall days in December - Crompond, NY
  • Average snowfall days in December: 4.7 days

The month with the highest number of snowfall days is February (6.5 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
Crompond, NY

Average daylight in December / Average sunshine in December - Crompond, 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
Crompond, NY

Average sunshine days in December - Crompond, NY
  • Average sunshine days in December: 17.5 days

The month with the most sunshine days is January (20.3 days).
The month with the least sunshine days is July (11.4 days).

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Average UV index in December
Crompond, NY

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

The months with the highest UV index are June 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
Crompond, NY

Average cloud cover in December - Crompond, 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 33).

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Average visibility in December
Crompond, NY

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

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

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Crompond, New York, USA

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