Weather Comparison
Side-by-side weather comparison for December
| Metric | New York | Boston | Better |
|---|---|---|---|
| Average HighHigher is warmer | 6°C (43°F)▲ | 5°C (41°F) | New York |
| Average LowHigher is milder | -1°C (30°F)▲ | -3°C (27°F) | New York |
| Rain DaysFewer is drier | 10 days | 10 days | Tie |
| PrecipitationLess is drier | 101 mm▲ | 116 mm | New York |
| Sunshine HoursMore is sunnier | 6h/day | 6h/day | Tie |
| HumidityLower is more comfortable | 65% | 65% | Tie |
| UV IndexLower is safer | 1 | 1 | Tie |
| Wind SpeedCalmer is better | 19 km/h▲ | 23 km/h | New York |
New York and Boston are closely matched in December. Neither city has a clear advantage across all metrics. Your decision should come down to personal preference, cultural interests, and travel logistics rather than weather alone.
New York is on the cooler side at 6°C, requiring warmer clothing. Boston is cooler at 5°C.
For travelers who prioritize dry weather, both cities are equally dry in December.
New York reaches an average high of 6°C (43°F) and drops to -1°C (30°F) at night during December. The daily temperature range is 7°C, meaning relatively stable temperatures from day to night.
Boston averages 5°C (41°F) for the high and -3°C (27°F) for the low, with a daily range of 8°C. The two cities feel quite similar in terms of temperature.
Both cities are in the Northern Hemisphere, so they share the same seasonal pattern in December.
New York receives approximately 101 mm of rainfall across 10 rain days during December. You can expect rain roughly every other day.
Boston sees 116 mm over 10 rain days. Both cities are equally rainy this month.
Both cities share similar humidity levels at 65%.
Highs of 6°C, lows of -1°C, 10 rain days
Highs of 5°C, lows of -3°C, 10 rain days
Pack for both: heavy winter coat, thermal base layers, warm gloves and hat, insulated boots, waterproof jacket, compact umbrella, waterproof shoes, a warm scarf. These items are useful in either destination during December.
The table below shows average high temperatures and rain days for every month. December is highlighted for quick reference.
| Month | New York | Boston | ||
|---|---|---|---|---|
| High | Rain | High | Rain | |
| Jan | 4°C | 9d | 2°C | 10d |
| Feb | 5°C | 9d | 3°C | 9d |
| Mar | 9°C | 10d | 7°C | 11d |
| Apr | 15°C | 11d | 14°C | 11d |
| May | 21°C | 11d | 19°C | 11d |
| Jun | 26°C | 11d | 25°C | 10d |
| Jul | 29°C | 12d | 28°C | 10d |
| Aug | 28°C | 11d | 27°C | 9d |
| Sep | 24°C | 9d | 23°C | 8d |
| Oct | 18°C | 9d | 16°C | 10d |
| Nov | 12°C | 8d | 10°C | 10d |
| Dec | 6°C | 10d | 5°C | 10d |
New York Weather in December
Full forecast, packing tips, and activities
Boston Weather in December
Full forecast, packing tips, and activities