King of Prussia Weather in December

December in King of Prussia brings low temperatures around 8°C (46°F) during the day, dropping to -2°C (28°F) at night, with quite a bit of snow/rainfall expected, averaging around 122 mm (4.8 in) for the month.

Rainfall in King of Prussia in December

Historically, the month has about 12 days of snow/rain, averaging 122 mm (4.8 in) in total. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.

Temperature in King of Prussia in December

Temperatures in King of Prussia in December top out at 8°C (46°F) and drop to -2°C (28°F) overnight. The winter season takes place during December. It stays cool throughout the day, so warm layers are a good idea from morning to evening. At -2°C (28°F) overnight, frost and ice are likely outside. Indoors, consider packing an extra blanket if you're unsure about the heating.

Sunshine in King of Prussia in December

The area enjoys a moderate level of sunlight, with around 140 hours. It's a good balance between sunny and cloudy days.

Average water temperature in December

At 9°C (48°F), the water is too cold for most people to swim comfortably. A wetsuit is pretty much essential if you plan to go in.

If you prefer dry days with pleasant temperatures, December may not be the ideal month to visit King of Prussia. Our weather planner can help you explore destinations with more pleasant weather conditions.

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For a detailed overview over the year and the best time to visit the United States of America, check out our King of Prussia's climate page.

King of Prussia Temperature in December

Min Temperature -2°C (28°F)  

Max Temperature 8°C (46°F)  

Water Temperature 9°C (48°F) *  

Chance of Rain 40%  

Precipitation 122 mm (4.8 in)  

Rainy days 12 days  

Humidity 67% *  

Sunshine 140 hours *  

Percentage Sunshine 48% *  

* Data from: Philadelphia, the United States of America (24 KM, 15 Miles).

What to Wear in King of Prussia in December

We recommend to layer up for chilly conditions in King of Prussia in December. You could start with thermal underwear or a good base layer to keep your core warm on the cooler days this month. Maybe also add a sweater or fleece, and top it off with a windproof jacket. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. The water temperature sits at about 9°C (48°F), which is too chilly for most people to enjoy swimming. Leave the swimsuit at home unless you love cold water. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.

What To Do in King of Prussia in December

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

5/10

Cycling

4/10

Walking

4/10

Camping

1/10

Outdoor sports

4/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our King of Prussia's climate page.

More climate data for King of Prussia

Temperature Rainfall Sunshine Humidity Water Temp

See the full King of Prussia climate overview or explore weather in the United States of America.