Climate almanac
Charlestown
Massachusetts, US · 42.38°, -71.06°
What is the climate like in Charlestown?
The best time to visit Charlestown is typically August – September, with trip comfort peaking in August (6.9/10). Charlestown is warmest in July, when daily highs average 80°F (26°C), and coolest in January, when lows fall to about 26°F (-3°C). The wettest month is typically December and the driest is August; the year sees roughly 46 in of precipitation.
- Best time to visitAugust – September — comfort peaks in August (6.9/10)
- Warmest monthJuly — average high 80°F (26°C)
- Coolest monthJanuary — average low 26°F (-3°C)
- Wettest monthDecember (4.9 in)
- Driest monthAugust (2.9 in)
- Annual precipitation46 in