December weather forecast
Deer Park, MD

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Weather in December

The first month of the winter, December, is also a wintry month in Deer Park, Maryland, with temperature in the range of an average low of 26.8°F (-2.9°C) and an average high of 38.3°F (3.5°C).

Temperature

The move into December indicates a slight reduction in the average high-temperature, down from November's chilly 46.9°F (8.3°C) to an icy 38.3°F (3.5°C). Deer Park experiences a nighttime temperature average of 26.8°F (-2.9°C) during December.

Humidity

In December, the average relative humidity is 84%.

Rainfall

In Deer Park, Maryland, in December, during 12.3 rainfall days, 3.11" (79mm) of precipitation is typically accumulated. In Deer Park, Maryland, during the entire year, the rain falls for 185.9 days and collects up to 35.16" (893mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Deer Park. In Deer Park, in December, snow falls for 13 days, with typically accumulated 6.22" (158mm) of snow. Throughout the year, in Deer Park, Maryland, there are 64.2 snowfall days, and 35.2" (894mm) of snow is accumulated.

Daylight

With an average of 9h and 24min of daylight, December has the shortest days of the year in Deer Park.
On the first day of the month, sunrise is at 7:18 am and sunset at 4:54 pm. On the last day of December, in Deer Park, sunrise is at 7:37 am and sunset at 5:03 pm EST.

Sunshine

The average sunshine in December in Deer Park is 3.8h.

UV index

The month with the lowest UV index is December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum daily UV index of 1 in December converts into the following recommendations:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
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Frequently asked questions

How cold is December in Deer Park?

An average high-temperature, in December, in Deer Park, is 38.3°F (3.5°C) and the average low-temperature is 26.8°F (-2.9°C).

What is the average humidity in December in Deer Park?

In December, the average relative humidity is 84%.

How many days does it rain in December in Deer Park?

In Deer Park, in December, it is raining for 12.3 days, with typically 3.11" (79mm) of accumulated precipitation.

How many days does it snow in December in Deer Park?

In December, in Deer Park, it is snowing for 13 days. Throughout December, 6.22" (158mm) of snow is accumulated.

What is the month with the shortest days in Deer Park?

With an average of 9h and 24min of daylight, December has the shortest days of the year.

How many hours of daylight does Deer Park have in December?

The average day length in December in Deer Park, Maryland, is 9h and 26min.

What time are sunrise and sunset in December in Deer Park?

In December, on the first day of the month, sunrise is at 7:18 am and sunset at 4:54 pm. On the last day of the month, in Deer Park, Maryland, sunrise is at 7:37 am and sunset at 5:03 pm EST.

How many hours of sunshine does Deer Park have in December?

In Deer Park, the average sunshine duration in December is 3.8h.

When is the lowest UV index in Deer Park?

December is the month with the lowest UV index, with an average maximum UV index of 1.

What is the UV index reading in December in Deer Park?

The average daily maximum UV index in December in Deer Park is 1. A UV Index reading of 2, and below, represents a minimal health vulnerability 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
Deer Park, MD

Average temperature in December - Deer Park, MD
  • Average high temperature in December: 38.3°F

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (32.5°F).

  • Average low temperature in December: 26.8°F

The month with the highest average low temperature is July (58.5°F).
The coldest month (with the lowest average low temperature) is January (19.6°F).

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Average pressure in December
Deer Park, MD

Average pressure in December - Deer Park, MD
  • Average pressure in December: 30.12"Hg

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

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Average wind speed in December
Deer Park, MD

Average wind speed in December - Deer Park, MD
  • Average wind speed in December: 8.2mph

The windiest months (with the highest average wind speed) are January and February (8.9mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).

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Average humidity in December
Deer Park, MD

Average humidity in December - Deer Park, MD
  • Average humidity in December: 84%

The month with the highest relative humidity is February (86%).
The month with the lowest relative humidity is July (78%).

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Average rainfall in December
Deer Park, MD

Average rainfall in December - Deer Park, MD
  • Average rainfall in December: 3.11"

The wettest month (with the highest rainfall) is May (3.9").
The driest month (with the least rainfall) is November (2.24").

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Average rainfall days in December
Deer Park, MD

Average rainfall days in December - Deer Park, MD
  • Average rainfall days in December: 12.3 days

The month with the highest number of rainy days is May (22.3 days).
The month with the least rainy days is February (9.3 days).

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Average snowfall in December
Deer Park, MD

Average snowfall in December - Deer Park, MD
  • Average snowfall in December: 6.22"

The month with the highest snowfall is February (7.6").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Deer Park, MD

Average snowfall days in December - Deer Park, MD
  • Average snowfall days in December: 13 days

The month with the highest number of snowfall days is January (15.1 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
Deer Park, MD

Average daylight in December / Average sunshine in December - Deer Park, MD
  • Average daylight in December: 9h and 2min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in December: 3h and 5min

The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

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Average sunshine days in December
Deer Park, MD

Average sunshine days in December - Deer Park, MD
  • Average sunshine days in December: 11.2 days

The month with the most sunshine days is November (14.5 days).
The month with the least sunshine days is May (6.9 days).

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Average UV index in December
Deer Park, MD

Average UV index in December - Deer Park, MD
  • Average UV index in December: 1

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

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Average cloud cover in December
Deer Park, MD

Average cloud cover in December - Deer Park, MD
  • Average cloud cover in December: 62

The month with the most cloud cover is January (Cloud cover 66).
The months with the least cloud cover are July and August (Cloud cover 40).

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Average visibility in December
Deer Park, MD

Average visibility in December - Deer Park, MD
  • Average visibility in December: 5mi

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

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Deer Park, Maryland, USA

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