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Weather in December in Pennsylvania

Considering a trip to Pennsylvania this December and wondering about the expected weather conditions? Find all the crucial information you need right here, addressing your question:

What is the weather like in Pennsylvania in December?

Pennsylvania is a region in the United States of America. December in Pennsylvania generally has cold temperatures, with precipitation levels ranging from moderate to high. During December, winter is in full swing.

Temperatures

The average maximum temperatures are cold and range from 3°C in Bradford to 9°C in Essington. Nighttime temperatures generally drop to 1°C in Essington and -5°C in Bradford.

Precipitation

In December, precipitation varies across different areas. From moderate snow/rainfall in Mansfield with an average of 69 mm to high snow/rainfall in Mount Pocono with 144 mm.

Average sunshine

Most areas experience a moderate amount of sunshine, with approximately 140 hours of sunlight expected in Philadelphia. This makes it neither too gloomy nor overly bright.

For a closer look at December's conditions in Pennsylvania, see the map below. For a more detailed look at Pennsylvania's yearly weather, check out our Pennsylvania climate page.

Where to go in Pennsylvania in December

Find more information for the most popular destinations in the Pennsylvania on the map below. Click on a destination dot for more detailes.

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Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

Popular destinations

What is the weather like in December for the 5 most popular destinations in Pennsylvania?

Philadelphia

In December Philadelphia generally has low temperatures with maximum daytime temperatures around 9°C, minimum nighttime temperatures around 1°C and high monthly rainfall. So on average the conditions are poor that month.

Philadelphia
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
13°C 
5°C 
155 hours 
78 mm 
10 days 
9°C 
1°C 
140 hours 
123 mm 
12 days 
poor 
January   >> January
>>  
5°C 
-3°C 
153 hours 
85 mm 
10 days 
poor 
Climate in Philadelphia

Pittsburgh

In December Pittsburgh generally has low temperatures with maximum daytime temperatures around 6°C, minimum nighttime temperatures around -2°C and moderate monthly snow/rainfall. So on average the conditions are poor that month.

Pittsburgh
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly snow/rainfall precipitationSnow/rainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
11°C 
1°C 
101 hours 
58 mm 
11 days 
6°C 
-2°C 
73 hours 
91 mm 
16 days 
poor 
January   >> January
>>  
2°C 
-6°C 
96 hours 
72 mm 
17 days 
poor 
Climate in Pittsburgh

Gettysburg

In December Gettysburg generally has low temperatures with maximum daytime temperatures around 7°C, minimum nighttime temperatures around -2°C and high monthly snow/rainfall. So on average the conditions are poor that month.

Gettysburg
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly snow/rainfall precipitationSnow/rainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
12°C 
1°C 
140 hours 
70 mm 
9 days 
7°C 
-2°C 
126 hours 
102 mm 
12 days 
poor 
January   >> January
>>  
4°C 
-6°C 
154 hours 
73 mm 
9 days 
poor 
Climate in Gettysburg

York

In December York generally has low temperatures with maximum daytime temperatures around 8°C, minimum nighttime temperatures around -2°C and high monthly snow/rainfall. So on average the conditions are poor that month.

York
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly snow/rainfall precipitationSnow/rainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
12°C 
2°C 
140 hours 
66 mm 
9 days 
8°C 
-2°C 
126 hours 
104 mm 
12 days 
poor 
January   >> January
>>  
4°C 
-6°C 
154 hours 
69 mm 
10 days 
poor 
Climate in York

Washington

In December Washington generally has low temperatures with maximum daytime temperatures around 6°C, minimum nighttime temperatures around -3°C and high monthly snow/rainfall. So on average the conditions are poor that month.

Washington
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly snow/rainfall precipitationSnow/rainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
11°C 
-0°C 
101 hours 
63 mm 
12 days 
6°C 
-3°C 
73 hours 
102 mm 
16 days 
poor 
January   >> January
>>  
2°C 
-8°C 
96 hours 
76 mm 
17 days 
poor 
Climate in Washington

Is your destination not in the list? Have a look at other destinations in Pennsylvania, in the United States of America.

Is December the best time to visit Pennsylvania?

In our opinion, December may not be the ideal time to visit Pennsylvania due to the typically poor weather in Philadelphia.

On average, the best time to visit Pennsylvania is in May with generally perfect weather in Philadelphia. On the other hand, the months of January, February and December tend to have poor weather conditions.

Interested in more climate information?

We have much more information about the climate in Pennsylvania. Interested in the weather conditions in a specific month? Select the month below.

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  • November      
  • December      
  • Weather and climate has detailed information for every country in the world. Are you going to the United States of America? Get detailed historical weather averages for many cities in the United States of America.

    Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.