December weather forecast
La Trappe, PA

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Weather in December

The first month of the winter, December, is also a frosty month in La Trappe, Pennsylvania, with an average temperature ranging between max 43.7°F (6.5°C) and min 32.5°F (0.3°C).

Temperature

December indicates a shift in the average high-temperature, from November's fresh 52.7°F (11.5°C) to a chilly 43.7°F (6.5°C). La Trappe records an average low of 32.5°F (0.3°C) throughout the nights in December.

Humidity

In La Trappe, the average relative humidity in December is 76%.

Rainfall

In December, the rain falls for 9.8 days. Throughout December, 3.03" (77mm) of precipitation is accumulated. In La Trappe, during the entire year, the rain falls for 153.8 days and collects up to 30.94" (786mm) of precipitation.

Snowfall

Months with snowfall are January through May, November and December. In December, it is snowing for 2.7 days. Throughout December, 1.18" (30mm) of snow is accumulated. Throughout the year, in La Trappe, there are 16.8 snowfall days, and 8.5" (216mm) of snow is accumulated.

Daylight

The month with the shortest days in La Trappe is December, 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 4:44 pm EST.

Sunshine

In December, the average sunshine is 5h.

UV index

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the average person.
Note: During December, 2 as the daily maximum UV index converts into the following advice:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Updated: Jul 23, 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 during December is 43.7°F (6.5°C) and the low-temperature is 32.5°F (0.3°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines relative humidity and air temperature, in August is appraised at 91.4°F (33°C).

What is the average humidity in December?

In La Trappe, the average relative humidity in December is 76%.

How many days does it rain in December?

In La Trappe, during December, the rain falls for 9.8 days and regularly aggregates up to 3.03" (77mm) of precipitation.

How much does it snow in December?

In December, it is snowing for 2.7 days. Throughout December, 1.18" (30mm) of snow is accumulated.

What is the month with the shortest days in La Trappe?

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

What is the average length of the day in December?

The average day length in December is 9h and 22min.

When is the sunrise / 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 4:44 pm EST.

How many hours of sunshine does La Trappe have in December?

The average sunshine duration in December is 5h.

What are the months with the lowest UV index?

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

What is the UV index reading in December?

In December, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability 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
La Trappe, PA

Average temperature in December - La Trappe, PA
  • Average high temperature in December: 43.7°F

The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (37.4°F).

  • Average low temperature in December: 32.5°F

The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).

Average pressure in December
La Trappe, PA

Average pressure in December - La Trappe, 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 (29.93"Hg).

Average wind speed in December
La Trappe, PA

Average wind speed in December - La Trappe, PA
  • Average wind speed in December: 7.7mph

The windiest months (with the highest average wind speed) are March and April (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).

Average humidity in December
La Trappe, PA

Average humidity in December - La Trappe, PA
  • Average humidity in December: 76%

The months with the highest relative humidity are February and October (77%).
The months with the lowest relative humidity are April, July and August (71%).

Average rainfall in December
La Trappe, PA

Average rainfall in December - La Trappe, PA
  • Average rainfall in December: 3.03"

The wettest month (with the highest rainfall) is July (3.39").
The driest month (with the least rainfall) is January (1.89").

Average rainfall days in December
La Trappe, PA

Average rainfall days in December - La Trappe, PA
  • Average rainfall days in December: 9.8 days

The month with the highest number of rainy days is July (18.5 days).
The month with the least rainy days is November (7.5 days).

Average snowfall in December
La Trappe, PA

Average snowfall in December - La Trappe, PA
  • Average snowfall in December: 1.18"

The month with the highest snowfall is March (2.76").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in December
La Trappe, PA

Average snowfall days in December - La Trappe, PA
  • Average snowfall days in December: 2.7 days

The month with the highest number of snowfall days is January (5.2 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
La Trappe, PA

Average daylight in December / Average sunshine in December - La Trappe, 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 30min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

Average sunshine days in December
La Trappe, PA

Average sunshine days in December - La Trappe, PA
  • Average sunshine days in December: 19 days

The month with the most sunshine days is November (21.2 days).
The month with the least sunshine days is July (10.4 days).

Average UV index in December
La Trappe, PA

Average UV index in December - La Trappe, 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
La Trappe, PA

Average cloud cover in December - La Trappe, 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 33).

Average visibility in December
La Trappe, PA

Average visibility in December - La Trappe, 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).

La Trappe, Pennsylvania, USA

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