December weather forecast
Cobalt Ridge, PA

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Weather in December

December, the first month of the winter in Cobalt Ridge, is still a chilly month, with temperature in the range of an average high of 43.7°F (6.5°C) and an average low of 32.4°F (0.2°C).

Temperature

December's onset introduces a mild reduction in the average high-temperature, from a fresh 52.3°F (11.3°C) in November to a chilly 43.7°F (6.5°C). Cobalt Ridge, during December nights, observes an average temperature of 32.4°F (0.2°C).

Humidity

The average relative humidity in December is 77%.

Rainfall

In Cobalt Ridge, in December, during 10.9 rainfall days, 3.19" (81mm) of precipitation is typically accumulated. Throughout the year, there are 154.4 rainfall days, and 31.38" (797mm) of precipitation is accumulated.

Snowfall

January through May, November and December are months with snowfall. In Cobalt Ridge, during December, snow falls for 2.8 days and regularly aggregates up to 1.22" (31mm) of snow. In Cobalt Ridge, during the entire year, snow falls for 15.9 days and aggregates up to 8.5" (216mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 24min of daylight.
On the first day of the month, sunrise is at 7:03 am and sunset at 4:34 pm. On the last day of December, sunrise is at 7:21 am and sunset at 4:43 pm EST.

Sunshine

The average sunshine in December is 5h.

UV index

January, February, 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 threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum daily UV index, 2 in December, converts into the following recommendations:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Updated: Aug 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold does it get in December?

The high-temperature, in December, in Cobalt Ridge, is 43.7°F (6.5°C), while the low-temperature averages to 32.4°F (0.2°C). In August, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is evaluated at 89.6°F (32°C).

What is the average humidity in December?

The average relative humidity in December is 77%.

How many days does it rain in December in Cobalt Ridge?

In Cobalt Ridge, in December, it is raining for 10.9 days, with typically 3.19" (81mm) of accumulated precipitation.

How many days does it snow in December?

In Cobalt Ridge, in December, snow falls for 2.8 days, with typically accumulated 1.22" (31mm) of snow.

What is the month with the shortest days?

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

How many hours of daylight does Cobalt Ridge have in December?

In Cobalt Ridge, the average day length in December is 9h and 22min.

When are sunrise and sunset in December?

On the first day of December, sunrise is at 7:03 am and sunset at 4:34 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 4:43 pm EST.

How long on average sun shines in December?

In Cobalt Ridge, the average sunshine duration in December is 5h.

When is the lowest UV index?

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.

How high is the UV index in December?

In December, the average daily maximum UV index is 2. A UV Index estimate 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
Cobalt Ridge, PA

Average temperature in December - Cobalt Ridge, PA
  • Average high temperature in December: 43.7°F

The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is January (37°F).

  • Average low temperature in December: 32.4°F

The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).

Average pressure in December
Cobalt Ridge, PA

Average pressure in December - Cobalt Ridge, PA
  • Average pressure in December: 30.09"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).

Average wind speed in December
Cobalt Ridge, PA

Average wind speed in December - Cobalt Ridge, PA
  • Average wind speed in December: 7.6mph

The windiest month (with the highest average wind speed) is March (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).

Average humidity in December
Cobalt Ridge, PA

Average humidity in December - Cobalt Ridge, PA
  • Average humidity in December: 77%

The months with the highest relative humidity are February and October (78%).
The month with the lowest relative humidity is April (72%).

Average rainfall in December
Cobalt Ridge, PA

Average rainfall in December - Cobalt Ridge, PA
  • Average rainfall in December: 3.19"

The wettest month (with the highest rainfall) is July (3.66").
The driest month (with the least rainfall) is January (1.89").

Average rainfall days in December
Cobalt Ridge, PA

Average rainfall days in December - Cobalt Ridge, PA
  • Average rainfall days in December: 10.9 days

The month with the highest number of rainy days is July (18.8 days).
The month with the least rainy days is January (8 days).

Average snowfall in December
Cobalt Ridge, PA

Average snowfall in December - Cobalt Ridge, PA
  • Average snowfall in December: 1.22"

The month with the highest snowfall is March (2.99").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in December
Cobalt Ridge, PA

Average snowfall days in December - Cobalt Ridge, PA
  • Average snowfall days in December: 2.8 days

The month with the highest number of snowfall days is January (4.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

Average daylight in December /
Average sunshine in December
Cobalt Ridge, PA

Average daylight in December / Average sunshine in December - Cobalt Ridge, PA
  • Average daylight in December: 9h and 2min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in December: 5h and 0min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

Average sunshine days in December
Cobalt Ridge, PA

Average sunshine days in December - Cobalt Ridge, PA
  • Average sunshine days in December: 18.1 days

The month with the most sunshine days is November (20.6 days).
The month with the least sunshine days is July (9.9 days).

Average UV index in December
Cobalt Ridge, PA

Average UV index in December - Cobalt Ridge, PA
  • Average UV index in December: 2

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in December
Cobalt Ridge, PA

Average cloud cover in December - Cobalt Ridge, PA
  • Average cloud cover in December: 46

The months with the most cloud cover are February and March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 32).

Average visibility in December
Cobalt Ridge, PA

Average visibility in December - Cobalt Ridge, PA
  • Average visibility in December: 6mi

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

Cobalt Ridge, Pennsylvania, USA

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