December weather forecast
Port Dickinson, NY

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Weather in December

December, the first month of the winter in Port Dickinson, is still a cold month, with an average temperature fluctuating between 23.9°F (-4.5°C) and 33.3°F (0.7°C).

Temperature

December brings a drop in Port Dickinson's average high-temperature, falling from a frosty 43.7°F (6.5°C) in November to an icy 33.3°F (0.7°C). In the month of December, the average low-temperature in Port Dickinson usually rests at a subzero cold 23.9°F (-4.5°C).

Humidity

In Port Dickinson, the average relative humidity in December is 86%.

Rainfall

In Port Dickinson, in December, it is raining for 11.2 days, with typically 2.76" (70mm) of accumulated precipitation. In Port Dickinson, during the entire year, the rain falls for 173.5 days and collects up to 35.67" (906mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In Port Dickinson, during December, snow falls for 18.2 days and regularly aggregates up to 8.54" (217mm) of snow. Throughout the year, there are 94.8 snowfall days, and 48.82" (1240mm) of snow is accumulated.

Daylight

With an average of 9h and 12min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 7:13 am and sunset at 4:32 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 4:41 pm EST.

Sunshine

In Port Dickinson, the average sunshine in December is 2.9h.

UV index

January, February and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In December, the maximum UV index of 1 transforms into these recommendations:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
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Frequently asked questions

How cold is December in Port Dickinson?

The average high-temperature, in December, in Port Dickinson, is 33.3°F (0.7°C), while the average low-temperature is 23.9°F (-4.5°C).

What is the average humidity in December in Port Dickinson?

In Port Dickinson, the average relative humidity in December is 86%.

How many days does it rain in December in Port Dickinson?

In December, the rain falls for 11.2 days. Throughout December, 2.76" (70mm) of precipitation is accumulated.

How many days does it snow in December in Port Dickinson?

In December, in Port Dickinson, it is snowing for 18.2 days. Throughout December, 8.54" (217mm) of snow is accumulated.

What is the month with the shortest days in Port Dickinson?

The month with the shortest days in Port Dickinson, New York, is December, with an average of 9h and 12min of daylight.

What is the average length of the day in December in Port Dickinson?

In Port Dickinson, New York, the average day length in December is 9h and 10min.

When is the sunrise / sunset in December in Port Dickinson?

On the first day of December in Port Dickinson, sunrise is at 7:13 am and sunset at 4:32 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 4:41 pm EST.

How long on average sun shines in December in Port Dickinson?

In December, the average sunshine duration in Port Dickinson, New York, is 2.9h.

When is the lowest UV index in Port Dickinson?

The months with the lowest UV index in Port Dickinson are January, February and December, with an average maximum UV index of 1.

What is the UV index intensity in December in Port Dickinson?

In Port Dickinson, the average daily maximum UV index in December is 1. A UV Index reading of 2, and below, represents a low health risk 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
Port Dickinson, NY

Average temperature in December - Port Dickinson, NY
  • Average high temperature in December: 33.3°F

The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (27.3°F).

  • Average low temperature in December: 23.9°F

The month with the highest average low temperature is July (57.4°F).
The coldest month (with the lowest average low temperature) is January (15.8°F).

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Average pressure in December
Port Dickinson, NY

Average pressure in December - Port Dickinson, NY
  • Average pressure in December: 30.08"Hg

The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in December
Port Dickinson, NY

Average wind speed in December - Port Dickinson, NY
  • Average wind speed in December: 8.9mph

The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).

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Average humidity in December
Port Dickinson, NY

Average humidity in December - Port Dickinson, NY
  • Average humidity in December: 86%

The month with the highest relative humidity is February (87%).
The months with the lowest relative humidity are April, May, June and July (80%).

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Average rainfall in December
Port Dickinson, NY

Average rainfall in December - Port Dickinson, NY
  • Average rainfall in December: 2.76"

The wettest month (with the highest rainfall) is June (3.58").
The driest months (with the least rainfall) are January and November (2.4").

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Average rainfall days in December
Port Dickinson, NY

Average rainfall days in December - Port Dickinson, NY
  • Average rainfall days in December: 11.2 days

The month with the highest number of rainy days is July (19.3 days).
The month with the least rainy days is February (7.3 days).

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Average snowfall in December
Port Dickinson, NY

Average snowfall in December - Port Dickinson, NY
  • Average snowfall in December: 8.54"

The month with the highest snowfall is February (10.87").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Port Dickinson, NY

Average snowfall days in December - Port Dickinson, NY
  • Average snowfall days in December: 18.2 days

The month with the highest number of snowfall days is January (21.6 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
Port Dickinson, NY

Average daylight in December / Average sunshine in December - Port Dickinson, NY
  • Average daylight in December: 9h and 1min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in December: 2h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 2h and 30min).

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Average sunshine days in December
Port Dickinson, NY

Average sunshine days in December - Port Dickinson, NY
  • Average sunshine days in December: 6.5 days

The month with the most sunshine days is September (14.3 days).
The month with the least sunshine days is February (5.7 days).

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Average UV index in December
Port Dickinson, NY

Average UV index in December - Port Dickinson, 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, February and December (UV index 1).

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Average cloud cover in December
Port Dickinson, NY

Average cloud cover in December - Port Dickinson, NY
  • Average cloud cover in December: 71

The month with the most cloud cover is February (Cloud cover 74).
The month with the least cloud cover is July (Cloud cover 39).

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Average visibility in December
Port Dickinson, NY

Average visibility in December - Port Dickinson, NY
  • Average visibility in December: 5mi

The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January and February (4mi).

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Port Dickinson, New York, USA

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