Merrimack County (Concord)
December
Weather in Merrimack County, New Hampshire for December 2026
Your guide to Merrimack County weather in December - trends and predictions
With an average of 5 snowy days, Merrimack County usually enjoys a light touch of snow in December.
In general, the average temperature in Merrimack County at the beginning of December is 0 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of -1.1 °C by the end of December.
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Snow Forecast ❄️
Temperatures
More
24
Dry days
2
Rainy days
5
Snow days
0°/-7°
Temperatures
19 km/h
Avg max wind
65 %
Avg humidity
Merrimack County Weather December
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Temperatures trend during December in Merrimack County
See the weather trend as well as the moving average line
December weather in Merrimack County day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| Dec. 1 |  Cloudy | 3° /-3° | 0 mm | 0 cm | |
| Dec. 2 |  Moderate or heavy snow showers | -1° /-4° | 104.4 mm | 52 cm | |
| Dec. 3 |  Partly cloudy | 1° /-5° | 29.3 mm | 21.2 cm | |
| Dec. 4 |  Overcast | 1° /-8° | 0 mm | 0 cm | |
| Dec. 5 |  Sunny | -3° /-13° | 0 mm | 0 cm | |
| Dec. 6 | Overcast | -1° /-10° | 0 mm | 0 cm | |
| Dec. 7 |  Mist | 0° /-7° | 0 mm | 0 cm | |
| Dec. 8 | Sunny | -1° /-9° | 0 mm | 0 cm | |
| Dec. 9 | Partly cloudy | -3° /-11° | 0 mm | 0 cm | |
| Dec. 10 |  Moderate or heavy rain shower | 2° /-5° | 11 mm | 0 cm | |
| Dec. 11 | Overcast | 0° /-8° | 0 mm | 0 cm | |
| Dec. 12 | Sunny | -1° /-9° | 0 mm | 0 cm | |
| Dec. 13 | Overcast | 0° /-4° | 0 mm | 0 cm | |
| Dec. 14 | Overcast | -1° /-8° | 0 mm | 0 cm | |
| Dec. 15 | Overcast | -3° /-10° | 0 mm | 0 cm | |
| Dec. 16 | Overcast | 0° /-7° | 0 mm | 0 cm | |
| Dec. 17 | Overcast | 1° /-5° | 0 mm | 0 cm | |
| Dec. 18 | Overcast | 4° /-1° | 0 mm | 0 cm | |
| Dec. 19 | Moderate or heavy rain shower | 10° /0° | 46.1 mm | 0 cm | |
| Dec. 20 | Overcast | 0° /-6° | 0 mm | 0 cm | |
| Dec. 21 | Overcast | 2° /-4° | 0 mm | 0 cm | |
| Dec. 22 | Sunny | -1° /-9° | 0 mm | 0 cm | |
| Dec. 23 |  Moderate snow | -1° /-3° | 13.2 mm | 9.5 cm | |
| Dec. 24 | Partly cloudy | 2° /-4° | 3.2 mm | 2.3 cm | |
| Dec. 25 | Overcast | -1° /-7° | 0 mm | 0 cm | |
| Dec. 26 | Overcast | -8° /-14° | 0 mm | 0 cm | |
| Dec. 27 | Overcast | -1° /-8° | 0 mm | 0 cm | |
| Dec. 28 | Partly cloudy | 2° /-8° | 0 mm | 0 cm | |
| Dec. 29 |  Moderate rain | 5° /-1° | 38.3 mm | 3.9 cm | |
| Dec. 30 | Cloudy | -2° /-10° | 0 mm | 0 cm | |
| Dec. 31 | Overcast | -3° /-8° | 0 mm | 0 cm | |
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Important Notice
Our weather forecast for Merrimack County 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 Merrimack County forecast closer to your planned date for the most up-to-date weather information.
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Merrimack County in December - FAQ
What are the expected maximum and minimum temperatures in Merrimack County during December?
Brace for cold days with temperatures not exceeding 0° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.
How much rainfall should be expected in Merrimack County during December?
Significant rainfall exceeding 245.5 mm is expected in Merrimack County during December, occurring over more than 2 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Merrimack County in December 2026?
Merrimack County experiences an average snowfall of 88.9 cm during December, occurring over 5 days.
What are the typical wind conditions in Merrimack County during December?
The average wind speed in Merrimack County during December is 19 km/h, suggesting breezy to windy conditions, depending on your activities.
Merrimack County snow forecast December 2026
Track daily snowfall levels and discover Merrimack County’s snowy potential this December ❄️
On average, Merrimack County sees 5 snowy days during December, with approximately 88.9 cm of total snowfall.
December rainfall patterns in Merrimack County
Explore the daily rainfall trends and prepare for Merrimack Countys December weather 💧
Typically, Merrimack County has 2 rainy days in December with a total of 245.5 mm of rainfall.
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Where is Merrimack County?Get accurate weather forecasts for Merrimack County, located at latitude 43.208 and longitude -71.538. Stay updated with localized weather information tailored for Merrimack County.
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