Climate almanac
Merrimac
Massachusetts, US · 42.83°, -71.00°
What is the climate like in Merrimac?
The best time to visit Merrimac is typically August – September, with trip comfort peaking in August (6.9/10). Merrimac is warmest in July, when daily highs average 81°F (27°C), and coolest in January, when lows fall to about 24°F (-4°C). The wettest month is typically December and the driest is August; the year sees roughly 44 in of precipitation.
- Best time to visitAugust – September — comfort peaks in August (6.9/10)
- Warmest monthJuly — average high 81°F (27°C)
- Coolest monthJanuary — average low 24°F (-4°C)
- Wettest monthDecember (4.7 in)
- Driest monthAugust (3.0 in)
- Annual precipitation44 in