Gaithersburg Weather in December

December in Gaithersburg brings low temperatures, with daytime highs of 8°C (46°F) and nights around -1°C (30°F). Quite a bit of snow/rainfall is expected, around 102 mm (4 in), so pack an umbrella.

Rainfall in Gaithersburg in December

On average, there are about 11 days with snow/rain during this month, averaging 102 mm (4 in). Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.

Temperature in Gaithersburg in December

December in Gaithersburg brings typical temperatures with highs around 8°C (46°F) and lows of -1°C (30°F). December is part of winter. Cold conditions persist throughout the day, so warm clothing is important from the moment you head outside. Nights drop below freezing to -1°C (30°F). An extra blanket is worth packing if you're unsure about the heating where you're staying.

Sunshine in Gaithersburg in December

The month brings about 130 hours of sunlight, offering a comfortable mix of sun and overcast.

If you're looking for dry conditions and comfortable temperatures, December may not be the ideal month to visit Gaithersburg. Our weather planner can help you explore destinations with more pleasant weather conditions.

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 Gaithersburg's climate page.

Gaithersburg Temperature in December

Min Temperature -1°C (30°F)  

Max Temperature 8°C (46°F)  

Chance of Rain 38%  

Precipitation 102 mm (4 in)  

Rainy days 11 days  

Humidity 64% *  

Sunshine 130 hours *  

Percentage Sunshine 45% *  

* Data from: Washington DC, the United States of America (35 KM, 22 Miles).

What to Wear in Gaithersburg in December

Cold weather calls for smart layering in December. A thermal base layer makes a huge difference in staying warm. Add a wool sweater or fleece, then a wind-resistant outer jacket. Prepare for significant rainfall with proper waterproof clothing and shoes. Bring sunglasses since you'll have some sunny periods throughout the month

What To Do in Gaithersburg 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 Gaithersburg's climate page.

More climate data for Gaithersburg

Temperature Rainfall Sunshine Humidity

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