Weather in South Boston, Massachusetts, United States in December
In an average December, South Boston sees a daily high around 37°F and a low around 24°F, based on 1981–2026 of local climate records.
| Average high | 37°F |
|---|---|
| Typical high range | 27°F to 49°F |
| Average low | 24°F |
| Typical low range | 13°F to 34°F |
| Average daily precipitation | 0.10 in |
December records
The most extreme December on record for each metric, across 1981–2026. For rainfall, the wettest and driest are by total December accumulation.
High
Highest
67°F
2001-12-01
Lowest
5°F
1983-12-25
Low
Highest
57°F
2006-12-01
Lowest
-5°F
1983-12-25
Feels-like
Highest
57°F
2006-12-01
Lowest
-25°F
1983-12-25
Humidity
Highest
12.6 g/m³
2006-12-01
Lowest
1.2 g/m³
1983-12-25
Wind
Highest
22 mph
2010-12-27
Lowest
3 mph
1992-12-29
Precip
Wettest
7.54 in
2023
Driest
1.21 in
1988
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