Old Lyme Weather in December

Old Lyme in December averages 7°C (45°F) during the day and -1°C (30°F) at night. This is part of the winter season, and quite a bit of snow/rainfall is expected this month.

Rainfall in Old Lyme in December

Based on our climate data of the past 30 years, about 12 days of snow/rain are anticipated, with 129 mm (5.1 in) on average. When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.

Temperature in Old Lyme in December

If you're visiting Old Lyme in December, expect highs of 7°C (45°F) and overnight lows around -1°C (30°F). Winter occurs in December. Even at the warmest part of the day, temperatures stay low. Dressing warmly from the start is the sensible approach. 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 Old Lyme in December

You can expect a moderate amount of sunlight, with approximately 139 hours. This means a pleasant mix of sun and overcast.

December in Old Lyme has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.

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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 Old Lyme's climate page.

Old Lyme Temperature in December

Min Temperature -1°C (30°F)  

Max Temperature 7°C (45°F)  

Chance of Rain 40%  

Precipitation 129 mm (5.1 in)  

Rainy days 12 days  

Humidity 68% *  

Sunshine 139 hours *  

Percentage Sunshine 49% *  

* Data from: Hartford, the United States of America (57 KM, 36 Miles).

What to Wear in Old Lyme in December

Dress warmly and in layers for your trip to Old Lyme 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 Old Lyme 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 Old Lyme's climate page.

More climate data for Old Lyme

Temperature Rainfall Sunshine Humidity

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