Thunder Bay vs Peterborough, Canada Climate
75%matchThunder Bay and Peterborough are a 75% climate match. Compared with Thunder Bay, Peterborough has 11°F (6°C) milder winter nights and twice the winter rain.
Thunder Bay gets 28 in (718 mm) of rain a year and Peterborough 36 in (919 mm). July is the warmest month in both, with highs of 78°F (26°C) in Thunder Bay and 80°F (27°C) in Peterborough.
Climate fingerprints: ring color = average temperature, thickness = rain. January at the top.
Month by month
Highs and lows (°F)
Thunder BayPeterboroughsolid = high, dashed = low
Rain (in per month)
Thunder BayPeterborough
Monthly averages
| Month | High | Low | Rain | |||
|---|---|---|---|---|---|---|
| Thunder Bay | Peterborough | Thunder Bay | Peterborough | Thunder Bay | Peterborough | |
| Jan | 19°F(-7°C) | 27°F(-3°C) | -1°F(-18°C) | 10°F(-12°C) | 1.3 in(33 mm) | 2.8 in(71 mm) |
| Feb | 23°F(-5°C) | 29°F(-1°C) | 0°F(-18°C) | 11°F(-12°C) | 1.0 in(26 mm) | 2.2 in(56 mm) |
| Mar | 35°F(1°C) | 39°F(4°C) | 13°F(-11°C) | 21°F(-6°C) | 1.5 in(37 mm) | 2.3 in(58 mm) |
| Apr | 48°F(9°C) | 53°F(12°C) | 26°F(-3°C) | 33°F(1°C) | 2.2 in(55 mm) | 3.1 in(79 mm) |
| May | 62°F(17°C) | 66°F(19°C) | 39°F(4°C) | 44°F(7°C) | 3.1 in(80 mm) | 3.5 in(89 mm) |
| Jun | 72°F(22°C) | 75°F(24°C) | 48°F(9°C) | 54°F(12°C) | 3.1 in(79 mm) | 3.5 in(90 mm) |
| Jul | 78°F(26°C) | 80°F(27°C) | 54°F(12°C) | 58°F(15°C) | 3.6 in(91 mm) | 3.0 in(76 mm) |
| Aug | 76°F(25°C) | 78°F(26°C) | 53°F(12°C) | 57°F(14°C) | 3.0 in(77 mm) | 3.3 in(85 mm) |
| Sep | 66°F(19°C) | 71°F(22°C) | 45°F(7°C) | 50°F(10°C) | 3.1 in(80 mm) | 3.1 in(80 mm) |
| Oct | 52°F(11°C) | 57°F(14°C) | 35°F(2°C) | 39°F(4°C) | 2.6 in(67 mm) | 3.3 in(83 mm) |
| Nov | 37°F(3°C) | 44°F(7°C) | 22°F(-6°C) | 29°F(-2°C) | 2.0 in(50 mm) | 3.2 in(82 mm) |
| Dec | 24°F(-4°C) | 33°F(0°C) | 7°F(-14°C) | 19°F(-7°C) | 1.7 in(43 mm) | 2.8 in(70 mm) |
1991–2020 averages, by calendar month.