Hummelstown Weather in December

December in Hummelstown brings low temperatures, with highs of 6°C (43°F) and nights dropping to -2°C (28°F). Rainfall is on the higher side this month, averaging around 105 mm (4.1 in), so keep a rain jacket handy.

Rainfall in Hummelstown in December

Historically, the month has about 12 days of snow/rain, averaging 105 mm (4.1 in) in total. When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.

Temperature in Hummelstown in December

Hummelstown in December gets highs of 6°C (43°F) during the day and drops to -2°C (28°F) at night. The month of December belongs to the winter season. 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 Hummelstown in December

The area enjoys a balanced 126 hours of sunlight, ensuring it's neither too overcast nor too sunny.

If you prefer dry days with pleasant temperatures, December may not be the ideal month to visit Hummelstown. 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 Hummelstown's climate page.

Hummelstown Temperature in December

Min Temperature -2°C (28°F)  

Max Temperature 6°C (43°F)  

Chance of Rain 39%  

Precipitation 105 mm (4.1 in)  

Rainy days 12 days  

Humidity 66% *  

Sunshine 126 hours *  

Percentage Sunshine 43% *  

* Data from: Harrisburg, the United States of America (15 KM, 9 Miles).

What to Wear in Hummelstown in December

Dress warmly and in layers for your trip to Hummelstown in December. A good base layer system works wonders. Start with good thermal underwear, add something warm like a fleece sweater, then finish with a waterproof jacket on top. Expect heavy rainfall, so bring good rain protection and waterproof bags. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.

What To Do in Hummelstown 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 Hummelstown's climate page.

More climate data for Hummelstown

Temperature Rainfall Sunshine Humidity

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