Willow Grove Weather in December

December in Willow Grove sees daytime temperatures around 8°C (46°F) and lows of -1°C (30°F) at night. With around 124 mm (4.9 in) of snow/rainfall expected, it's worth packing a rain jacket.

Rainfall in Willow Grove in December

You can expect snow/rain on around 11 days based on historical patterns, with 124 mm (4.9 in) average for the month. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.

Temperature in Willow Grove in December

Daytime highs in Willow Grove in December reach 8°C (46°F), with nights around -1°C (30°F). The winter season takes place during December. Even at the warmest part of the day, temperatures stay low. Dressing warmly from the start is the sensible approach. With lows of -1°C (30°F), nights are freezing. Packing a spare blanket is worth considering if you're staying somewhere that might not be fully heated.

Sunshine in Willow Grove in December

With about 140 hours of sunshine, the area enjoys a nice balance of sun and overcast, creating a pleasant environment.

Average water temperature in December

At 9°C (48°F), the water is very cold. Most people find it too uncomfortable for anything beyond a brief wade.

December in Willow Grove can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.

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 Willow Grove's climate page.

Willow Grove Temperature in December

Min Temperature -1°C (30°F)  

Max Temperature 8°C (46°F)  

Water Temperature 9°C (48°F) *  

Chance of Rain 38%  

Precipitation 124 mm (4.9 in)  

Rainy days 11 days  

Humidity 67% *  

Sunshine 140 hours *  

Percentage Sunshine 48% *  

* Data from: Philadelphia, the United States of America (21 KM, 13 Miles).

What to Wear in Willow Grove in December

We recommend to layer up for chilly conditions in Willow Grove 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. With water temperatures around 9°C (48°F), the water is quite cold for swimming. You can skip the swimwear unless you're particularly tough. Bring sunglasses since you'll have some sunny periods throughout the month

What To Do in Willow Grove 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 Willow Grove's climate page.

More climate data for Willow Grove

Temperature Rainfall Sunshine Humidity Water Temp

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