December weather forecast
East Chatham, NY

Weather in December

The first month of the winter, December, is still a cold month in East Chatham, New York, with an average temperature ranging between max 34.9°F (1.6°C) and min 24.1°F (-4.4°C).

Temperature

In East Chatham, the average high-temperature in December drops from a frosty 45.5°F (7.5°C) in November to a cold 34.9°F (1.6°C). In East Chatham, in December, the average low-temperature is 24.1°F (-4.4°C).

Humidity

The months with the highest humidity are February and December, with an average relative humidity of 83%.

Rainfall

In East Chatham, it is raining for 7.8 days, with typically 1.46" (37mm) of accumulated precipitation. Throughout the year, in East Chatham, there are 135.1 rainfall days, and 20.39" (518mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in East Chatham. In East Chatham, New York, snow falls for 5.6 days, with typically accumulated 2.6" (66mm) of snow. In East Chatham, during the entire year, snow falls for 36.9 days and aggregates up to 15.98" (406mm) of snow.

Daylight

The month with the shortest days in East Chatham is December, with an average of 9h and 8min of daylight.
On the first day of the month, sunrise is at 7:03 am and sunset at 4:22 pm. On the last day of December, sunrise is at 7:23 am and sunset at 4:30 pm EST.

Sunshine

The average sunshine in December is 4.4h.

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 estimate of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the ordinary person.
Note: The average daily UV index of 2 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. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. 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 East Chatham?

In December, in East Chatham, the average high-temperature is 34.9°F (1.6°C), and the average low-temperature is 24.1°F (-4.4°C). in July, the average heat index (a.k.a. 'real feel', 'feels like'), which calculates the temperature value influenced by the moisture in the air, is appraised at 86°F (30°C).

What is the most humid month in East Chatham?

February and December, with an average relative humidity of 83%, are most humid months in East Chatham, New York.

What is the average humidity in December in East Chatham?

In East Chatham, New York, the average relative humidity in December is 83%.

How much does it rain in East Chatham in December?

In December, in East Chatham, New York, the rain falls for 7.8 days. Throughout December, 1.46" (37mm) of precipitation is accumulated.

How much does it snow in East Chatham in December?

In December, in East Chatham, New York, it is snowing for 5.6 days. Throughout December, 2.6" (66mm) of snow is accumulated.

What is the month with the shortest days in East Chatham?

December has the shortest days of the year in East Chatham, with an average of 9h and 8min of daylight.

What is the average length of the day in December in East Chatham?

The average day length in December is 9h and 8min.

When is the sunrise / sunset in December in East Chatham?

On the first day of December in East Chatham, New York, sunrise is at 7:03 am and sunset at 4:22 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 4:30 pm EST.

How long on average sun shines in December in East Chatham?

In December, the average sunshine duration in East Chatham, New York, is 4.4h.

What is the month with the lowest UV index in East Chatham?

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

What is the UV index intensity in December in East Chatham?

In December, the average daily maximum UV index in East Chatham, New York, is 2. A UV Index value of 2, and less, symbolizes a low health risk 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
East Chatham, NY

Average temperature in December - East Chatham, NY
  • Average high temperature in December: 34.9°F

The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (29.1°F).

  • Average low temperature in December: 24.1°F

The month with the highest average low temperature is July (59°F).
The coldest month (with the lowest average low temperature) is January (16.7°F).

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Average pressure in December
East Chatham, NY

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

The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in December
East Chatham, NY

Average wind speed in December - East Chatham, NY
  • Average wind speed in December: 7.8mph

The windiest months (with the highest average wind speed) are January and March (8.2mph).
The calmest month (with the lowest average wind speed) is August (5mph).

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Average humidity in December
East Chatham, NY

Average humidity in December - East Chatham, NY
  • Average humidity in December: 83%

The months with the highest relative humidity are February and December (83%).
The month with the lowest relative humidity is April (75%).

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Average rainfall in December
East Chatham, NY

Average rainfall in December - East Chatham, NY
  • Average rainfall in December: 1.46"

The wettest month (with the highest rainfall) is July (2.4").
The driest month (with the least rainfall) is January (1.1").

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Average rainfall days in December
East Chatham, NY

Average rainfall days in December - East Chatham, NY
  • Average rainfall days in December: 7.8 days

The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is January (5.7 days).

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Average snowfall in December
East Chatham, NY

Average snowfall in December - East Chatham, NY
  • Average snowfall in December: 2.6"

The month with the highest snowfall is March (3.9").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
East Chatham, NY

Average snowfall days in December - East Chatham, NY
  • Average snowfall days in December: 5.6 days

The month with the highest number of snowfall days is February (9.3 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
East Chatham, NY

Average daylight in December / Average sunshine in December - East Chatham, NY
  • Average daylight in December: 9h and 8min

The month with the longest days is June (Average daylight: 15h and 14min).
The month with the shortest days is December (Average daylight: 9h and 8min).

  • Average sunshine in December: 4h and 24min

The months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).

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Average sunshine days in December
East Chatham, NY

Average sunshine days in December - East Chatham, NY
  • Average sunshine days in December: 19 days

The month with the most sunshine days is January (20 days).
The month with the least sunshine days is June (12.5 days).

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Average UV index in December
East Chatham, NY

Average UV index in December - East Chatham, NY
  • Average UV index in December: 2

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, February, March, November and December (UV index 2).

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Average cloud cover in December
East Chatham, NY

Average cloud cover in December - East Chatham, NY
  • Average cloud cover in December: 54

The month with the most cloud cover is February (Cloud cover 58).
The months with the least cloud cover are July and August (Cloud cover 35).

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Average visibility in December
East Chatham, NY

Average visibility in December - East Chatham, NY
  • Average visibility in December: 6mi

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

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