December weather forecast
Jenkintown, PA

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Weather in December

The first month of the winter, December, is also a frosty month in Jenkintown, Pennsylvania, with temperature in the range of an average low of 31.6°F (-0.2°C) and an average high of 42.8°F (6°C).

Temperature

The shift from November to December corresponds with a decrease in the average high-temperature, down to a frosty 42.8°F (6°C) from a cool 52.2°F (11.2°C). In December, Jenkintown records an average nighttime temperature of 31.6°F (-0.2°C).

Humidity

February, October and December, with an average relative humidity of 78%, are the most humid months.

Rainfall

In Jenkintown, in December, during 7.5 rainfall days, 1.14" (29mm) of precipitation is typically accumulated. Throughout the year, there are 122.4 rainfall days, and 12.68" (322mm) of precipitation is accumulated.

Snowfall

January through April, November and December are months with snowfall. In Jenkintown, in December, snow falls for 2.5 days, with typically accumulated 0.71" (18mm) of snow. Throughout the year, there are 16.3 snowfall days, and 4.72" (120mm) of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 9h and 24min of daylight.
On the first day of December, sunrise is at 7:04 am and sunset at 4:35 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 4:45 pm EST.

Sunshine

In December, the average sunshine is 5h.

UV index

The months with the lowest UV index in Jenkintown are January through March, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: A daily maximum UV index of 2 in December translates into the following instructions:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. During bright days, sunglasses that offer UVA and UVB defense are recommended. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.

Frequently asked questions

Is it cold during December?

During December, Jenkintown experiences an average high-temperature of 42.8°F (6°C) and a low-temperature of 31.6°F (-0.2°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in August is computed to be 89.6°F (32°C).

What is the most humid month?

February, October and December, with an average relative humidity of 78%, are most humid months.

What is the average humidity in December?

In Jenkintown, Pennsylvania, the average relative humidity in December is 78%.

How many days does it rain in December?

In December, the rain falls for 7.5 days. Throughout December, 1.14" (29mm) of precipitation is accumulated.

How many days does it snow in December?

In Jenkintown, in December, snow falls for 2.5 days, with typically accumulated 0.71" (18mm) of snow.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 24min of daylight.

How many hours of daylight does Jenkintown have in December?

In December, the average day length is 9h and 23min.

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:04 am and sunset at 4:35 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 4:45 pm EST.

How many hours of sunshine does Jenkintown have in December?

In December, the average sunshine duration is 5h.

What are the months with the lowest UV index in Jenkintown?

The months with the lowest UV index are January through March, 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 reading of 2, and below, represents a low health threat 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
Jenkintown, PA

Average temperature in December - Jenkintown, PA
  • Average high temperature in December: 42.8°F

The warmest month (with the highest average high temperature) is July (86.2°F).
The month with the lowest average high temperature is January (36.7°F).

  • Average low temperature in December: 31.6°F

The month with the highest average low temperature is July (68.2°F).
The coldest month (with the lowest average low temperature) is January (24.6°F).

Average pressure in December
Jenkintown, PA

Average pressure in December - Jenkintown, PA
  • Average pressure in December: 30.09"Hg

The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in December
Jenkintown, PA

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

The windiest month (with the highest average wind speed) is March (8.4mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).

Average humidity in December
Jenkintown, PA

Average humidity in December - Jenkintown, PA
  • Average humidity in December: 78%

The months with the highest relative humidity are February, October and December (78%).
The months with the lowest relative humidity are April, July and August (72%).

Average rainfall in December
Jenkintown, PA

Average rainfall in December - Jenkintown, PA
  • Average rainfall in December: 1.14"

The wettest month (with the highest rainfall) is August (1.54").
The driest month (with the least rainfall) is September (0.75").

Average rainfall days in December
Jenkintown, PA

Average rainfall days in December - Jenkintown, PA
  • Average rainfall days in December: 7.5 days

The month with the highest number of rainy days is May (14.1 days).
The month with the least rainy days is November (6.4 days).

Average snowfall in December
Jenkintown, PA

Average snowfall in December - Jenkintown, PA
  • Average snowfall in December: 0.71"

The month with the highest snowfall is February (1.46").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in December
Jenkintown, PA

Average snowfall days in December - Jenkintown, PA
  • Average snowfall days in December: 2.5 days

The month with the highest number of snowfall days is January (5.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

Average daylight in December / Average sunshine in December - Jenkintown, 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 42min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

Average sunshine days in December
Jenkintown, PA

Average sunshine days in December - Jenkintown, PA
  • Average sunshine days in December: 20.9 days

The month with the most sunshine days is November (21.3 days).
The month with the least sunshine days is May (14.4 days).

Average UV index in December
Jenkintown, PA

Average UV index in December - Jenkintown, 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, March, November and December (UV index 2).

Average cloud cover in December
Jenkintown, PA

Average cloud cover in December - Jenkintown, PA
  • Average cloud cover in December: 47

The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 31).

Average visibility in December
Jenkintown, PA

Average visibility in December - Jenkintown, PA
  • Average visibility in December: 6mi

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

Jenkintown, Pennsylvania, USA

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