Hyannis (MA)
December
Weather in Hyannis, Massachusetts for December 2026
Your guide to Hyannis weather in December - trends and predictions
With an average of 5 snowy days, Hyannis usually enjoys a light touch of snow in December.
In general, the average temperature in Hyannis at the beginning of December is 6 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 2.1 °C by the end of December.
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Snow Forecast ❄️
Temperatures
More
19
Dry days
7
Rainy days
5
Snow days
4°/-1°
Temperatures
37 km/h
Avg max wind
71 %
Avg humidity
Hyannis Weather December
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Temperatures trend during December in Hyannis
See the weather trend as well as the moving average line
December weather in Hyannis day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| Dec. 1 | Sunny | 9° /1° | 23.3 mm | 0 cm | |
| Dec. 2 | Heavy rain at times | 10° /1° | 79.4 mm | 0 cm | |
| Dec. 3 | Moderate snow | 7° /2° | 42.2 mm | 1.5 cm | |
| Dec. 4 | Overcast | 5° /-1° | 0 mm | 0 cm | |
| Dec. 5 | Partly cloudy | 2° /-6° | 0.4 mm | 0.3 cm | |
| Dec. 6 | Overcast | 5° /0° | 2 mm | 0 cm | |
| Dec. 7 | Mist | 4° /0° | 0 mm | 0 cm | |
| Dec. 8 | Partly cloudy | 2° /-3° | 0 mm | 0 cm | |
| Dec. 9 | Cloudy | 2° /-3° | 0 mm | 0 cm | |
| Dec. 10 | Moderate or heavy sleet | 9° /3° | 22.5 mm | 0 cm | |
| Dec. 11 | Partly cloudy | 6° /-2° | 0 mm | 0 cm | |
| Dec. 12 | Sunny | 2° /-2° | 0 mm | 0 cm | |
| Dec. 13 | Overcast | 2° /-1° | 0 mm | 0 cm | |
| Dec. 14 | Moderate snow | 2° /-2° | 3.8 mm | 2.8 cm | |
| Dec. 15 | Cloudy | 0° /-6° | 0 mm | 0 cm | |
| Dec. 16 | Sunny | 3° /-3° | 0 mm | 0 cm | |
| Dec. 17 | Overcast | 7° /2° | 0 mm | 0 cm | |
| Dec. 18 | Cloudy | 7° /1° | 0 mm | 0 cm | |
| Dec. 19 | Moderate or heavy rain shower | 10° /3° | 56.2 mm | 0 cm | |
| Dec. 20 | Cloudy | 2° /-1° | 0 mm | 0 cm | |
| Dec. 21 | Overcast | 7° /0° | 0 mm | 0 cm | |
| Dec. 22 | Partly cloudy | 1° /-2° | 0 mm | 0 cm | |
| Dec. 23 | Moderate snow | 2° /0° | 11.4 mm | 3.6 cm | |
| Dec. 24 | Overcast | 6° /1° | 4 mm | 0 cm | |
| Dec. 25 | Overcast | 3° /0° | 0 mm | 0 cm | |
| Dec. 26 | Overcast | -2° /-7° | 0 mm | 0 cm | |
| Dec. 27 | Moderate snow | 0° /-2° | 6 mm | 4.3 cm | |
| Dec. 28 | Sunny | 4° /-3° | 0 mm | 0 cm | |
| Dec. 29 | Heavy rain at times | 9° /3° | 21 mm | 0 cm | |
| Dec. 30 | Cloudy | 1° /-2° | 0 mm | 0 cm | |
| Dec. 31 | Cloudy | 0° /-2° | 0 mm | 0 cm | |
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Important Notice
Our weather forecast for Hyannis 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 Hyannis forecast closer to your planned date for the most up-to-date weather information.
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Hyannis in December - FAQ
What are the expected maximum and minimum temperatures in Hyannis during December?
Brace for cold days with temperatures not exceeding 4° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.
How much rainfall should be expected in Hyannis during December?
Significant rainfall exceeding 272.2 mm is expected in Hyannis during December, occurring over more than 7 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Hyannis in December 2026?
Hyannis experiences an average snowfall of 12.4 cm during December, occurring over 5 days.
What are the typical wind conditions in Hyannis during December?
The average wind speed in Hyannis during December is 37 km/h, suggesting breezy to windy conditions, depending on your activities.
Hyannis snow forecast December 2026
Track daily snowfall levels and discover Hyannis’s snowy potential this December ❄️
On average, Hyannis sees 5 snowy days during December, with approximately 12.4 cm of total snowfall.
December rainfall patterns in Hyannis
Explore the daily rainfall trends and prepare for Hyanniss December weather 💧
Typically, Hyannis has 7 rainy days in December with a total of 272.2 mm of rainfall.
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Get accurate weather forecasts for Hyannis, located at latitude 41.653 and longitude -70.283. Stay updated with localized weather information tailored for Hyannis.
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