December weather forecast
Trexlertown, PA

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Weather in December

December, the first month of the winter in Trexlertown, is also a wintry month, with an average temperature fluctuating between 28.9°F (-1.7°C) and 40.3°F (4.6°C).

Temperature

With December's onset, the average high-temperature recedes from November's cool 50°F (10°C) to an icy 40.3°F (4.6°C). During December, the nighttime temperature averages of 28.9°F (-1.7°C).

Humidity

In December, the average relative humidity in Trexlertown is 80%.

Rainfall

In Trexlertown, during December, the rain falls for 11.2 days and regularly aggregates up to 2.68" (68mm) of precipitation. Throughout the year, in Trexlertown, there are 155.8 rainfall days, and 30.75" (781mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Trexlertown are January through May, October through December. In Trexlertown, Pennsylvania, in December, snow falls for 5 days, with typically accumulated 2.36" (60mm) of snow. In Trexlertown, during the entire year, snow falls for 29.4 days and aggregates up to 15.87" (403mm) of snow.

Daylight

With an average of 9h and 18min of daylight, December has the shortest days of the year in Trexlertown.
On the first day of December in Trexlertown, sunrise is at 7:07 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 4:45 pm EST.

Sunshine

The average sunshine in December is 4.7h.

UV index

The months with the lowest UV index in Trexlertown are January through March, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the average person.
Note: The maximum daily UV index of 2 during December translates into the following directions:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
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Frequently asked questions

Is December cold in Trexlertown?

The high-temperature, in December, in Trexlertown, is 40.3°F (4.6°C), while the low-temperature averages to 28.9°F (-1.7°C). In August, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which factors the actual air temperature with the relative humidity, is estimated at 86°F (30°C).

What is the average humidity in December in Trexlertown?

The average relative humidity in December is 80%.

How much does it rain in Trexlertown in December?

In Trexlertown, Pennsylvania, during December, the rain falls for 11.2 days and regularly aggregates up to 2.68" (68mm) of precipitation.

How much does it snow in Trexlertown in December?

In Trexlertown, Pennsylvania, during December, snow falls for 5 days and regularly aggregates up to 2.36" (60mm) of snow.

What is the month with the shortest days in Trexlertown?

The month with the shortest days in Trexlertown, Pennsylvania, is December, with an average of 9h and 18min of daylight.

What is the average length of the day in December in Trexlertown?

In December, the average day length is 9h and 20min.

When are sunrise and sunset in December in Trexlertown?

On the first day of December in Trexlertown, Pennsylvania, sunrise is at 7:07 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 4:45 pm EST.

How many hours of sunshine does Trexlertown have in December?

The average sunshine duration in December is 4.7h.

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

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

How high is the UV index in December in Trexlertown?

In Trexlertown, Pennsylvania, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes 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
Trexlertown, PA

Average temperature in December - Trexlertown, PA
  • Average high temperature in December: 40.3°F

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (34.3°F).

  • Average low temperature in December: 28.9°F

The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

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Average pressure in December
Trexlertown, PA

Average pressure in December - Trexlertown, 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).

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Average wind speed in December
Trexlertown, PA

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

The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).

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Average humidity in December
Trexlertown, PA

Average humidity in December - Trexlertown, PA
  • Average humidity in December: 80%

The month with the highest relative humidity is February (82%).
The months with the lowest relative humidity are April and July (76%).

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Average rainfall in December
Trexlertown, PA

Average rainfall in December - Trexlertown, PA
  • Average rainfall in December: 2.68"

The wettest month (with the highest rainfall) is April (2.99").
The driest month (with the least rainfall) is September (1.77").

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Average rainfall days in December
Trexlertown, PA

Average rainfall days in December - Trexlertown, PA
  • Average rainfall days in December: 11.2 days

The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (8.5 days).

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Average snowfall in December
Trexlertown, PA

Average snowfall in December - Trexlertown, PA
  • Average snowfall in December: 2.36"

The month with the highest snowfall is March (4.29").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Trexlertown, PA

Average snowfall days in December - Trexlertown, PA
  • Average snowfall days in December: 5 days

The month with the highest number of snowfall days is January (8.8 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
Trexlertown, PA

Average daylight in December / Average sunshine in December - Trexlertown, 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 18min).

  • Average sunshine in December: 4h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).

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Average sunshine days in December
Trexlertown, PA

Average sunshine days in December - Trexlertown, PA
  • Average sunshine days in December: 16.6 days

The month with the most sunshine days is November (17.9 days).
The month with the least sunshine days is April (11.2 days).

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Average UV index in December
Trexlertown, PA

Average UV index in December - Trexlertown, PA
  • Average UV index in December: 2

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

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Average cloud cover in December
Trexlertown, PA

Average cloud cover in December - Trexlertown, PA
  • Average cloud cover in December: 51

The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 33).

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Average visibility in December
Trexlertown, PA

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

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

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Trexlertown, Pennsylvania, USA

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