Peterborough, Canada Climate by Month
Peterborough, Ontario, Canada
Warm summers and freezing winters, with rain spread through the year.
Peterborough has warm summers and freezing winters, with rain spread through the year. July is the warmest month, with highs around 80°F (27°C); January is the coolest at 27°F (-3°C), and nights dip to 10°F (-12°C). About 36 in (919 mm) of rain falls in a typical year, with no clear rainy season.
- Warmest month
- 80°F(27°C)
- Average high, July
- Coldest nights
- 10°F(-12°C)
- Average low, January
- Rain per year
- 36 in(919 mm)
- No clear rainy season
- Humidity
- 76%
- Sunniest: June
Best and worst months in Peterborough
Best for weatherThe most comfortable weather comes in June, with highs around 75°F (24°C) and about 3.5 in (90 mm) of rain a month.
Least pleasantJanuary is the least pleasant month: it's the coldest, with highs of only 27°F (-3°C).
Comfort combines how close the afternoon high is to 75°F (24°C) with how much rain falls and how humid it is. See where the weather is best in June.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Peterborough weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 27°F(-3°C) | 10°F(-12°C) | 2.8 in(71 mm) | 88% | 1.4 |
| FebFebruary | 29°F(-1°C) | 11°F(-12°C) | 2.2 in(56 mm) | 80% | 2.3 |
| MarMarch | 39°F(4°C) | 21°F(-6°C) | 2.3 in(58 mm) | 71% | 3.4 |
| AprApril | 53°F(12°C) | 33°F(1°C) | 3.1 in(79 mm) | 64% | 4.4 |
| MayMay | 66°F(19°C) | 44°F(7°C) | 3.5 in(89 mm) | 67% | 5.4 |
| JunJuneBest | 75°F(24°C) | 54°F(12°C) | 3.5 in(90 mm) | 72% | 5.9 |
| JulJuly | 80°F(27°C) | 58°F(15°C) | 3.0 in(76 mm) | 75% | 5.8 |
| AugAugust | 78°F(26°C) | 57°F(14°C) | 3.3 in(85 mm) | 74% | 5.1 |
| SepSeptember | 71°F(22°C) | 50°F(10°C) | 3.1 in(80 mm) | 78% | 4.0 |
| OctOctober | 57°F(14°C) | 39°F(4°C) | 3.3 in(83 mm) | 79% | 2.3 |
| NovNovember | 44°F(7°C) | 29°F(-2°C) | 3.2 in(82 mm) | 82% | 1.4 |
| DecDecember | 33°F(0°C) | 19°F(-7°C) | 2.8 in(70 mm) | 85% | 1.1 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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