Philadelphia

Pennsylvania Weather in December

Average temperatures, rainfall, sunshine and the best places to visit in Pennsylvania, the United States of America in December.

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Philadelphia Pittsburgh Gettysburg York

Planning a journey to Pennsylvania, the United States of America this December and curious over the weather conditions to await? Your essential details are found on this page, answering your query:

What to Expect in Pennsylvania in December

Pennsylvania, the United States of America 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 (37°F) in Bradford to 9°C (48°F) in Essington. Nighttime temperatures generally drop to 1°C (34°F) in Essington and -5°C (23°F) in Bradford.

To learn more about the conditions in specific areas of Pennsylvania, the United States of America, check out the map below.

Precipitation

In December, precipitation varies across different areas. From moderate snow/rainfall in Mansfield with an average of 69 mm (2.7 in) to high snow/rainfall in Mount Pocono with 144 mm (5.7 in).

Average sunshine

Sunshine levels are moderate in most locations. Philadelphia typically sees 140 hours of sunlight, creating comfortable conditions that aren't too bright or too dim. Looking for something sunnier? Our weather planner helps you discover destinations with more reliable sunshine.

Explore Pennsylvania by month

Pick a month to see the average temperature, rainfall and sunshine in Pennsylvania — and find the best time to visit. (based on Philadelphia)

January5°C (41°F) February6°C (43°F) March12°C (54°F) April19°C (66°F) May24°C (75°F) June29°C (84°F) This monthJuly31°C (88°F) August30°C (86°F) September26°C (79°F) October20°C (68°F) November13°C (55°F) December9°C (48°F)
Best Time to Visit Pennsylvania →

Best Places to Visit in Pennsylvania in December

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Pennsylvania.

Conditions Temperatures Precipitation
perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in Pennsylvania

What is the weather like in December for some of the most popular destinations in Pennsylvania, the United States of America?

Temperature range in Pennsylvania (December)

Precipitation variation in Pennsylvania (December)

Philadelphia

In December Philadelphia generally has low temperatures with maximum daytime temperatures around 9°C (48°F), minimum nighttime temperatures around 1°C (34°F) and high monthly rainfall. So on average the conditions are poor that month.

« November
December
January »
November
December
January
Max temperature
13°C (55°F)
9°C (48°F)
5°C (41°F)
Min temperature
5°C (41°F)
1°C (34°F)
-3°C (27°F)
Monthly sun hours
155 hours
140 hours
153 hours
Monthly rainfall
78 mm (3.1 in)
123 mm (4.8 in)
85 mm (3.3 in)
Monthly rainy days
10 days
12 days
10 days
Weather conditions
unpleasant
poor
poor
Climate in Philadelphia →

Pittsburgh

In December Pittsburgh generally has low temperatures with maximum daytime temperatures around 6°C (43°F), minimum nighttime temperatures around -2°C (28°F) and moderate monthly snow/rainfall. So on average the conditions are poor that month.

« November
December
January »
November
December
January
Max temperature
11°C (52°F)
6°C (43°F)
2°C (36°F)
Min temperature
1°C (34°F)
-2°C (28°F)
-6°C (21°F)
Monthly sun hours
101 hours
73 hours
96 hours
Monthly snow/rainfall
58 mm (2.3 in)
91 mm (3.6 in)
72 mm (2.8 in)
Monthly rainy days
11 days
16 days
17 days
Weather conditions
unpleasant
poor
poor
Climate in Pittsburgh →

Gettysburg

In December Gettysburg generally has low temperatures with maximum daytime temperatures around 7°C (45°F), minimum nighttime temperatures around -2°C (28°F) and high monthly snow/rainfall. So on average the conditions are poor that month.

« November
December
January »
November
December
January
Max temperature
12°C (54°F)
7°C (45°F)
4°C (39°F)
Min temperature
1°C (34°F)
-2°C (28°F)
-6°C (21°F)
Monthly sun hours
140 hours
126 hours
154 hours
Monthly snow/rainfall
70 mm (2.8 in)
102 mm (4 in)
73 mm (2.9 in)
Monthly rainy days
9 days
12 days
9 days
Weather conditions
unpleasant
poor
poor
Climate in Gettysburg →

York

In December York generally has low temperatures with maximum daytime temperatures around 8°C (46°F), minimum nighttime temperatures around -2°C (28°F) and high monthly snow/rainfall. So on average the conditions are poor that month.

« November
December
January »
November
December
January
Max temperature
12°C (54°F)
8°C (46°F)
4°C (39°F)
Min temperature
2°C (36°F)
-2°C (28°F)
-6°C (21°F)
Monthly sun hours
140 hours
126 hours
154 hours
Monthly snow/rainfall
66 mm (2.6 in)
104 mm (4.1 in)
69 mm (2.7 in)
Monthly rainy days
9 days
12 days
10 days
Weather conditions
unpleasant
poor
poor
Climate in York →

Washington

In December Washington generally has low temperatures with maximum daytime temperatures around 6°C (43°F), minimum nighttime temperatures around -3°C (27°F) and high monthly snow/rainfall. So on average the conditions are poor that month.

« November
December
January »
November
December
January
Max temperature
11°C (52°F)
6°C (43°F)
2°C (36°F)
Min temperature
0°C (32°F)
-3°C (27°F)
-8°C (18°F)
Monthly sun hours
101 hours
73 hours
96 hours
Monthly snow/rainfall
63 mm (2.5 in)
102 mm (4 in)
76 mm (3 in)
Monthly rainy days
12 days
16 days
17 days
Weather conditions
unpleasant
poor
poor
Climate in Washington →

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

Popular cities in December

Day & night temperatures, rainfall and average weather in Pennsylvania in December.

City Weather Day temp Night temp Rainfall
Philadelphia 9°C (48°F) 1°C (34°F) 123 mm (4.8 in)
Pittsburgh 6°C (43°F) -2°C (28°F) 91 mm (3.6 in)
Gettysburg 7°C (45°F) -2°C (28°F) 102 mm (4 in)
York 8°C (46°F) -2°C (28°F) 104 mm (4.1 in)
Washington 6°C (43°F) -3°C (27°F) 102 mm (4 in)
Bethlehem 6°C (43°F) -2°C (28°F) 121 mm (4.8 in)

Pennsylvania weather in December: frequently asked questions

What is the weather like in Pennsylvania, the United States of America in December?

December in Pennsylvania, the United States of America brings poor weather. In Philadelphia, daytime temperatures are typically around 9°C (48°F) and nighttime lows hover near 1°C (34°F).

What is the average temperature in Pennsylvania, the United States of America in December?

Average temperatures in Pennsylvania, the United States of America during December range from a nighttime low near 1°C (34°F) to a daytime high around 9°C (48°F) in Philadelphia.

Does Pennsylvania, the United States of America get a lot of rain in December?

Pennsylvania, the United States of America sees substantial rainfall in December. Philadelphia typically averages about 123 mm (4.8 in), a mix of wet and dry days, but bring an umbrella.

Is December a Good Time to Visit Pennsylvania, the United States of America?

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

On average, the best time to visit Pennsylvania, the United States of America 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.

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.

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