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Weather in Connecticut for December 2025

Your guide to Connecticut weather in December - trends and predictions

    Snow Forecast ❄️

  • With an average of 3 snowy days, Connecticut usually enjoys a light touch of snow in December.
    According to Connecticut snow forecast for December 2025, 3 snowy days are expected until the end of the month. The closest date with snow is Friday, December 19.

    • Temperatures

  • Until now, December 2025 in Connecticut is slightly cooler than the historical average by -1.9 °F.

  • The forecast for the next days in Connecticut predicts temperatures to be around 3 °F, close to the historical average.

  • In general, the average temperature in Connecticut at the beginning of December is 1.9 °F. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 4.7 °F by the end of December.

    • Rain 🌧️

  • Connecticut experiences moderate rainfall in December, with an average of 9 rainy days and a total precipitation of 350.7 mm.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
19
Dry days
Average rainy days
9
Rainy days
Average snowy days
3
Snow days
Average temperatures
3°/-2°
Temperatures
Average wind speed
15 km/h
Avg max wind
Average humidity
77 %
Avg humidity

Connecticut Weather December

Move between months or click on a day
November
January
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Cloudy
3°
2
Sunny
2°
3
Partly cloudy
3°
4
Overcast
2°
5
Heavy snow
1°
6
Overcast
0°
7
Sunny
2°
8
Light sleet
4°
9
Moderate or heavy rain shower
2°
10
Fog
6°
11
Heavy rain
9°
12
Overcast
5°
13
Sunny
1°
14
Sunny
0°
15
Overcast
-0°
16
Light rain
5°
17
Sunny
4°
18
Fog
4°
19
Heavy rain
12°
20
Cloudy
2°
21
Patchy rain possible
7°
22
Sunny
-2°
23
Light freezing rain
-1°
24
Partly cloudy
4°
25
Partly cloudy
1°
26
Light rain
1°
27
Patchy rain possible
6°
28
Patchy rain possible
7°
29
Overcast
-1°
30
Moderate or heavy rain with thunder
11°
31
Overcast
8°

What’s the Weather Like in Connecticut This December?

Discover the average temperatures and weather trends across Connecticut’s cities this December.
CloudyHartford3 °F / -2 °FCloudyBridgeport7 °F / 2 °FCloudyNew Haven5 °F / -1 °FMore Locations

Temperatures trend during December in Connecticut

See the weather trend as well as the moving average line

December weather in Connecticut day by day

Click on a date for more information
November January
Date Weather Temperatures Rain Snow More
Dec. 1 Cloudy
Cloudy
 3° /-2° 0.9 mm 0 cm
Dec. 2 Sunny
Sunny
 2° /-2° 55.7 mm 0 cm
Dec. 3 Partly cloudy
Partly cloudy
 3° /-2° 2 mm 0 cm
Dec. 4 Overcast
Overcast
 2° /-3° 0 mm 0 cm
Dec. 5 Heavy snow
Heavy snow
 1° /-4° 25.7 mm 4.3 cm
Dec. 6 Overcast
Overcast
 0° /-4° 0 mm 0 cm
Dec. 7 Sunny
Sunny
 2° /-4° 0 mm 0 cm
Dec. 8 Light sleet
Light sleet
 4° /-3° 2.6 mm 0.8 cm
Dec. 9 Moderate or heavy rain shower
Moderate or heavy rain shower
 2° /-4° 14.8 mm 0 cm
Dec. 10 Fog
Fog
 6° /0° 4.7 mm 0 cm
Dec. 11 Heavy rain
Heavy rain
 9° /2° 48.4 mm 1.7 cm
Dec. 12 Overcast
Overcast
 5° /-4° 14.2 mm 0 cm
Dec. 13 Sunny
Sunny
 1° /-5° 0 mm 0 cm
Dec. 14 Sunny
Sunny
 0° /-6° 0 mm 0 cm
Dec. 15 Overcast
Overcast
 0° /-7° 0 mm 0 cm
Dec. 16 Light rain
Light rain
 5° /-1° 7.2 mm 0 cm
Dec. 17 Sunny
Sunny
 4° /-3° 0 mm 0 cm
Dec. 18 Fog
Fog
 4° /-4° 0 mm 0 cm
Dec. 19 Heavy rain
Heavy rain
 12° /3° 75.8 mm 0 cm
Dec. 20 Cloudy
Cloudy
 2° /-3° 0 mm 0 cm
Dec. 21 Patchy rain possible
Patchy rain possible
 7° /-1° 0.3 mm 0 cm
Dec. 22 Sunny
Sunny
 -2° /-5° 0 mm 0 cm
Dec. 23 Light freezing rain
Light freezing rain
 -1° /-7° 0.3 mm 0.2 cm
Dec. 24 Partly cloudy
Partly cloudy
 4° /-2° 0 mm 0 cm
Dec. 25 Partly cloudy
Partly cloudy
 1° /-2° 0 mm 0 cm
Dec. 26 Light rain
Light rain
 1° /0° 4.5 mm 0 cm
Dec. 27 Patchy rain possible
Patchy rain possible
 6° /2° 1.1 mm 0 cm
Dec. 28 Patchy rain possible
Patchy rain possible
 7° /-1° 2.3 mm 0 cm
Dec. 29 Overcast
Overcast
 -1° /-4° 0 mm 0 cm
Dec. 30 Moderate or heavy rain with thunder
Moderate or heavy rain with thunder
 11° /5° 69.9 mm 0 cm
Dec. 31 Overcast
Overcast
 8° /3° 0 mm 0 cm
Next
Important Notice
Our weather forecast for Connecticut in December is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Connecticut forecast closer to your planned date for the most up-to-date weather information.
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Connecticut in December - FAQ

What are the expected maximum and minimum temperatures in Connecticut during December?
Brace for cold days with temperatures not exceeding 3° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.
How much rainfall should be expected in Connecticut during December?
Significant rainfall exceeding 350.7 mm is expected in Connecticut during December, occurring over more than 9 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Connecticut in December 2025?
Connecticut experiences an average snowfall of 11.17 cm during December, occurring over 3 days.
What are the typical wind conditions in Connecticut during December?
The average wind speed in Connecticut during December is 15 km/h, suggesting breezy to windy conditions, depending on your activities.

Connecticut snow forecast December 2025

Track daily snowfall levels and discover Connecticut’s snowy potential this December ❄️
On average, Connecticut sees 3 snowy days during December, with approximately 11.2 cm of total snowfall.

December rainfall patterns in Connecticut

Explore the daily rainfall trends and prepare for Connecticuts December weather 💧
Typically, Connecticut has 9 rainy days in December with a total of 350.7 mm of rainfall.
Counties in Connecticut
Select a county for an accurate weather forecast
Fairfield CountyHartford CountyNew Haven County
Top locations in Connecticut
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BridgeportHartfordNew Haven
More Locations

Quick links

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Location coordinates Where is Connecticut?

Get accurate weather forecasts for Connecticut, located at latitude 41.764 and longitude -72.685. Stay updated with localized weather information tailored for Connecticut.

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