Climate almanac
Marion
Massachusetts, United States · 41.70°, -70.76°
What is the climate like in Marion?
The best time to visit Marion is typically August, the year's most comfortable month (6.9/10). Marion is warmest in July, when daily highs average 80°F (27°C), and coolest in January, when lows fall to about 28°F (-2°C). The wettest month is typically December and the driest is August; the year sees roughly 45 in (1137 mm) of precipitation.
- Best time to visitAugust — the year's comfort peak (6.9/10)
- Warmest monthJuly — average high 80°F (27°C)
- Coolest monthJanuary — average low 28°F (-2°C)
- Wettest monthDecember (4.5 in (114 mm))
- Driest monthAugust (2.8 in (71 mm))
- Annual precipitation45 in (1137 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
- Records fromE Wareham, 11 km away (1912-2026)