Climate almanac

Smiths Falls

Ontario, Canada · 44.90°, -76.02°

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What is the climate like in Smiths Falls?

The best time to visit Smiths Falls is typically September, the year's most comfortable month (7.2/10). Smiths Falls is warmest in July, when daily highs average 80°F (27°C), and coolest in January, when lows fall to about 13°F (-11°C). The wettest month is typically October and the driest is September; the year sees roughly 42 in (1063 mm) of precipitation.

  • Best time to visitSeptember — the year's comfort peak (7.2/10)
  • Warmest monthJuly — average high 80°F (27°C)
  • Coolest monthJanuary — average low 13°F (-11°C)
  • Wettest monthOctober (4.4 in (111 mm))
  • Driest monthSeptember (2.1 in (53 mm))
  • Annual precipitation42 in (1063 mm)
  • Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
  • Records fromDrummond Centre, 23 km away (1984-2024)