Climate almanac

Stow

Massachusetts, United States · 42.44°, -71.51°

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What is the climate like in Stow?

The best time to visit Stow is typically August – September, with trip comfort peaking in June (6.9/10). Stow is warmest in July, when daily highs average 85°F (29°C), and coolest in January, when lows fall to about 24°F (-5°C). The wettest month is typically December and the driest is June; the year sees roughly 45 in (1133 mm) of precipitation.

  • Best time to visitAugust – September — comfort peaks in June (6.9/10)
  • Warmest monthJuly — average high 85°F (29°C)
  • Coolest monthJanuary — average low 24°F (-5°C)
  • Wettest monthDecember (4.7 in (120 mm))
  • Driest monthJune (3.1 in (80 mm))
  • Annual precipitation45 in (1133 mm)
  • Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
  • Records fromBedford Hanscom Fld, 18 km away (1949-2026)