December weather forecast
Dietrichtown, PA

Share

Weather in December

The first month of the winter, December, is also an icy month in Dietrichtown, Pennsylvania, with an average temperature fluctuating between 40.1°F (4.5°C) and 28.9°F (-1.7°C).

Temperature

The transition into December involves a decrease in the average high-temperature, falling from a frosty 49.8°F (9.9°C) in November to a wintry 40.1°F (4.5°C). Dietrichtown anticipates an average minimum temperature of 28.9°F (-1.7°C) in the month of December.

Humidity

February, October and December, with an average relative humidity of 81%, are the most humid months.

Rainfall

In Dietrichtown, in December, it is raining for 10.1 days, with typically 2.87" (73mm) of accumulated precipitation. In Dietrichtown, during the entire year, the rain falls for 156.5 days and collects up to 31.97" (812mm) of precipitation.

Snowfall

Months with snowfall in Dietrichtown are January through May, October through December. In Dietrichtown, in December, snow falls for 4.4 days, with typically accumulated 2.2" (56mm) of snow. In Dietrichtown, during the entire year, snow falls for 23.7 days and aggregates up to 13.39" (340mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 18min of daylight.
On the first day of December, sunrise is at 7:06 am and sunset at 4:34 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 4:43 pm EST.

Sunshine

The average sunshine in December is 4.8h.

UV index

The months with the lowest UV index 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 low threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: The daily high UV index of 2 during December translates into the following recommendations:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Updated: Aug 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it cold during December?

The high-temperature, in December, in Dietrichtown, records 40.1°F (4.5°C), while the low-temperature is 28.9°F (-1.7°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, in August is calculated to be 86°F (30°C).

What are the most humid months?

The months with the highest humidity are February, October and December, with an average relative humidity of 81%.

What is the average humidity in December?

In December, the average relative humidity is 81%.

How much does it rain in December?

In Dietrichtown, in December, it is raining for 10.1 days, with typically 2.87" (73mm) of accumulated precipitation.

How much does it snow in Dietrichtown in December?

In December, in Dietrichtown, it is snowing for 4.4 days. Throughout December, 2.2" (56mm) of snow is accumulated.

What is the month with the shortest days?

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

How many hours of daylight does Dietrichtown have in December?

In Dietrichtown, the average day length in December is 9h and 19min.

When is the sunrise / sunset in December?

In December, on the first day of the month, sunrise is at 7:06 am and sunset at 4:34 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 4:43 pm EST.

How many hours of sunshine does Dietrichtown have in December?

In December, the average sunshine duration is 4.8h.

When is the lowest UV index?

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

What is the UV index reading in December?

In Dietrichtown, the average daily maximum UV index in December is 2. 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
Dietrichtown, PA

Average temperature in December - Dietrichtown, PA
  • Average high temperature in December: 40.1°F

The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (34.2°F).

  • Average low temperature in December: 28.9°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

Average pressure in December
Dietrichtown, PA

Average pressure in December - Dietrichtown, 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
Dietrichtown, PA

Average wind speed in December - Dietrichtown, PA
  • Average wind speed in December: 7.5mph

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).

Average humidity in December
Dietrichtown, PA

Average humidity in December - Dietrichtown, PA
  • Average humidity in December: 81%

The months with the highest relative humidity are February, October and December (81%).
The months with the lowest relative humidity are April and July (76%).

Average rainfall in December
Dietrichtown, PA

Average rainfall in December - Dietrichtown, PA
  • Average rainfall in December: 2.87"

The wettest month (with the highest rainfall) is July (3.66").
The driest month (with the least rainfall) is September (1.97").

Average rainfall days in December
Dietrichtown, PA

Average rainfall days in December - Dietrichtown, PA
  • Average rainfall days in December: 10.1 days

The month with the highest number of rainy days is July (18.1 days).
The month with the least rainy days is January (8.1 days).

Average snowfall in December
Dietrichtown, PA

Average snowfall in December - Dietrichtown, PA
  • Average snowfall in December: 2.2"

The month with the highest snowfall is March (4.09").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Dietrichtown, PA

Average snowfall days in December - Dietrichtown, PA
  • Average snowfall days in December: 4.4 days

The month with the highest number of snowfall days is February (6.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Dietrichtown, 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 5min

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 30min).

Average sunshine days in December
Dietrichtown, PA

Average sunshine days in December - Dietrichtown, PA
  • Average sunshine days in December: 17.4 days

The month with the most sunshine days is November (19.9 days).
The month with the least sunshine days is July (10.6 days).

Average UV index in December
Dietrichtown, PA

Average UV index in December - Dietrichtown, 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).

Average cloud cover in December
Dietrichtown, PA

Average cloud cover in December - Dietrichtown, PA
  • Average cloud cover in December: 49

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 34).

Average visibility in December
Dietrichtown, PA

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

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

Dietrichtown, Pennsylvania, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location