Climate almanac

Arnprior

Ontario, Canada · 45.43°, -76.35°

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What is the climate like in Arnprior?

The best time to visit Arnprior is typically September, the year's most comfortable month (6.8/10). Arnprior is warmest in July, when daily highs average 80°F (27°C), and coolest in January, when lows fall to about 10°F (-12°C). The wettest month is typically April and the driest is September; the year sees roughly 43 in (1090 mm) of precipitation.

  • Best time to visitSeptember — the year's comfort peak (6.8/10)
  • Warmest monthJuly — average high 80°F (27°C)
  • Coolest monthJanuary — average low 10°F (-12°C)
  • Wettest monthApril (4.3 in (109 mm))
  • Driest monthSeptember (2.7 in (67 mm))
  • Annual precipitation43 in (1090 mm)
  • Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
  • Records fromLuskville, 26 km away (1980-2024)