December weather forecast
Cowansville, PA

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Weather in December

December, the first month of the winter in Cowansville, is still a cold month, with temperature in the range of an average high of 38.5°F (3.6°C) and an average low of 27.3°F (-2.6°C).

Temperature

The commencement of December involves a temperature shift, with the average high-temperature dropping from a chilly 48°F (8.9°C) in November to a wintry 38.5°F (3.6°C). December nights observe an average temperature dip to a subzero cold 27.3°F (-2.6°C).

Humidity

In December, the average relative humidity is 85%.

Rainfall

In Cowansville, during December, the rain falls for 12.6 days and regularly aggregates up to 2.8" (71mm) of precipitation. Throughout the year, there are 182.9 rainfall days, and 34.88" (886mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. In Cowansville, Pennsylvania, in December, snow falls for 13 days, with typically accumulated 4.69" (119mm) of snow. In Cowansville, during the entire year, snow falls for 64.2 days and aggregates up to 24.25" (616mm) of snow.

Daylight

With an average of 9h and 18min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:24 am and sunset at 4:51 pm. On the last day of December, sunrise is at 7:42 am and sunset at 5:00 pm EST.

Sunshine

The average sunshine in December is 3.1h.

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: A maximum UV index of 1 in December translates into the following recommendations:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.

Frequently asked questions

Is it cold in Cowansville during December?

The average high-temperature, in December, in Cowansville, is 38.5°F (3.6°C), while the average low-temperature is 27.3°F (-2.6°C). In July, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which represents the influence of relative humidity on air temperature, is appraised at 87.8°F (31°C).

What is the average humidity in December in Cowansville?

The average relative humidity in December is 85%.

How much does it rain in December?

In December, the rain falls for 12.6 days. Throughout December, 2.8" (71mm) of precipitation is accumulated.

How many days does it snow in December?

In December, it is snowing for 13 days. Throughout December, 4.69" (119mm) of snow is accumulated.

What is the month with the shortest days?

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

What is the average length of the day in December?

In December, the average day length is 9h and 18min.

What time are sunrise and sunset in December in Cowansville?

On the first day of December, sunrise is at 7:24 am and sunset at 4:51 pm. On the last day of the month, sunrise is at 7:42 am and sunset at 5:00 pm EST.

How long on average sun shines in December in Cowansville?

In December, the average sunshine duration is 3.1h.

When is the lowest UV index?

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

What is the UV index intensity in December?

In Cowansville, the average daily maximum UV index in December is 1. A UV Index reading of 2, and below, represents a minimal hazard to health 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
Cowansville, PA

Average temperature in December - Cowansville, PA
  • Average high temperature in December: 38.5°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (32.4°F).

  • Average low temperature in December: 27.3°F

The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).

Average pressure in December
Cowansville, PA

Average pressure in December - Cowansville, PA
  • Average pressure in December: 30.1"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in December
Cowansville, PA

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

The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

Average humidity in December
Cowansville, PA

Average humidity in December - Cowansville, PA
  • Average humidity in December: 85%

The month with the highest relative humidity is February (87%).
The months with the lowest relative humidity are April, July and August (77%).

Average rainfall in December
Cowansville, PA

Average rainfall in December - Cowansville, PA
  • Average rainfall in December: 2.8"

The wettest month (with the highest rainfall) is May (3.7").
The driest month (with the least rainfall) is November (2.17").

Average rainfall days in December
Cowansville, PA

Average rainfall days in December - Cowansville, PA
  • Average rainfall days in December: 12.6 days

The month with the highest number of rainy days is May (20.3 days).
The month with the least rainy days is January (9.7 days).

Average snowfall in December
Cowansville, PA

Average snowfall in December - Cowansville, PA
  • Average snowfall in December: 4.69"

The month with the highest snowfall is January (6.65").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Cowansville, PA

Average snowfall days in December - Cowansville, PA
  • Average snowfall days in December: 13 days

The month with the highest number of snowfall days is January (18.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Cowansville, PA

Average daylight in December / Average sunshine in December - Cowansville, PA
  • 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: 3h and 1min

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 2h and 42min).

Average sunshine days in December
Cowansville, PA

Average sunshine days in December - Cowansville, PA
  • Average sunshine days in December: 9.5 days

The month with the most sunshine days is November (14.1 days).
The month with the least sunshine days is February (7 days).

Average UV index in December
Cowansville, PA

Average UV index in December - Cowansville, PA
  • Average UV index in December: 1

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

Average cloud cover in December
Cowansville, PA

Average cloud cover in December - Cowansville, PA
  • Average cloud cover in December: 68

The month with the most cloud cover is January (Cloud cover 72).
The month with the least cloud cover is August (Cloud cover 35).

Average visibility in December
Cowansville, PA

Average visibility in December - Cowansville, PA
  • Average visibility in December: 5mi

The month with the highest visibility is April (6mi).
The months with the lowest visibility are January and February (4mi).

Cowansville, Pennsylvania, USA

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