Climate almanac

Peterborough

Ontario, Canada · 44.30°, -78.32°

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What is the climate like in Peterborough?

The best time to visit Peterborough is typically June – September, with trip comfort peaking in September (6.9/10). Peterborough is warmest in July, when daily highs average 80°F (27°C), and coolest in January, when lows fall to about 15°F (-9°C). The wettest month is typically April and the driest is November; the year sees roughly 40 in (1019 mm) of precipitation.

  • Best time to visitJune – September — comfort peaks in September (6.9/10)
  • Warmest monthJuly — average high 80°F (27°C)
  • Coolest monthJanuary — average low 15°F (-9°C)
  • Wettest monthApril (4.2 in (106 mm))
  • Driest monthNovember (2.7 in (68 mm))
  • Annual precipitation40 in (1019 mm)
  • Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
  • Records fromPeterborough Trent U, 6 km away (2005-2023)