South Boston weather records
Record high and low temperatures for South Boston, by month, by season, and all-time, with the dates they occurred, across 1980–2026 of daily climate history. Its hottest day on record reached 98°F on 2011-07-22; its coldest fell to -9°F on 2016-02-14.
Records by month
The warmest (▲) and coldest (▼) both the daytime high and the overnight low have ever been in each calendar month, so each column shows its record high and its record low. Tap a month for its full averages and typical range.
| Month | Daytime high | Overnight low |
|---|---|---|
| January | 67°F2020-01-12
6°F2004-01-15
|
56°F1995-01-16
-8°F1981-01-12
|
| February | 67°F2017-02-24
11°F2016-02-14
|
52°F1997-02-22
-9°F2016-02-14
|
| March | 79°F1998-03-31
23°F2005-03-09
|
59°F2012-03-23
6°F1980-03-01
|
| April | 84°F2002-04-17
25°F1982-04-07
|
63°F2009-04-26
18°F1982-04-07
|
| May | 89°F1987-05-31
45°F1987-05-05
|
70°F1991-05-25
36°F2008-05-01
|
| June | 96°F2025-06-24
50°F2015-06-02
|
76°F2025-06-25
45°F1986-06-03
|
| July | 98°F2011-07-22
60°F2021-07-03
|
79°F2019-07-21
51°F1988-07-01
|
| August | 95°F1993-08-28
61°F1987-08-29
|
79°F2006-08-02
48°F1986-08-30
|
| September | 92°F2018-09-06
52°F2000-09-29
|
75°F2018-09-04
40°F2000-09-29
|
| October | 82°F2011-10-09
40°F2000-10-29
|
69°F2017-10-09
28°F2020-10-31
|
| November | 77°F2024-11-01
27°F2002-11-28
|
66°F2022-11-07
13°F1989-11-24
|
| December | 69°F1998-12-07
15°F2017-12-29
|
59°F2006-12-01
-3°F1980-12-25
|
Records by season
The warmest (▲) and coldest (▼) both the daytime high and the overnight low have reached in each meteorological season (Northern Hemisphere, each a three-month span).
| Season | Daytime high | Overnight low |
|---|---|---|
| Winter (Dec–Feb) | 69°F1998-12-07
6°F2004-01-15
|
59°F2006-12-01
-9°F2016-02-14
|
| Spring (Mar–May) | 89°F1987-05-31
23°F2005-03-09
|
70°F1991-05-25
6°F1980-03-01
|
| Summer (Jun–Aug) | 98°F2011-07-22
50°F2015-06-02
|
79°F2006-08-02
45°F1986-06-03
|
| Autumn (Sep–Nov) | 92°F2018-09-06
27°F2002-11-28
|
75°F2018-09-04
13°F1989-11-24
|
All-time records
The most extreme value South Boston has recorded for each metric across its entire history.
High
Low
Feels-like
Humidity
Wind
Gust
Precip
For rainfall, the “driest” figure is the longest run of consecutive days without measurable rain, dated to when that dry spell began.