What is the weather like in Boston vs St. John's, Newfoundland in December?

In December, Boston averages 6°C high / -2°C low with about 109 mm of rain; St. John's, Newfoundland averages 3°C high / -3°C low with about 126 mm.

Boston vs St. John's, Newfoundland in December

Boston is the better pick in December — 46 vs 36 on SeasonMap's comfort score. Boston is cold, rainy, clean air, while St. John's, Newfoundland is freezing, rainy, clean air.

Boston vs St. John's, Newfoundland — December climate, side by side

	🇺🇸 Boston	🇨🇦 St. John's, Newfoundland
Comfort score	46/100 (F)	36/100 (F)
Feels-like high	1°C	-2°C
Avg high / low	6° / -2°	3° / -3°
Rainfall	109 mm	126 mm
Rainy days	9	16
Humidity	72%	79%
Air quality (AQI)	40	36

Monthly climate normals (ERA5 reanalysis). Comfort scores are SeasonMap estimates.

Month by month

Boston vs St. John's, Newfoundland in December — FAQ

Is December better in Boston or St. John's, Newfoundland?: Boston is the better pick in December — 46 vs 36 on SeasonMap's comfort score. Boston is cold, rainy, clean air, while St. John's, Newfoundland is freezing, rainy, clean air.
What is the weather like in Boston vs St. John's, Newfoundland in December?: In December, Boston averages 6°C high / -2°C low with about 109 mm of rain; St. John's, Newfoundland averages 3°C high / -3°C low with about 126 mm.