Rochester, Minnesota vs Sarnia Climate
83%matchRochester vs Sarnia: a 83% climate match. Compared with Rochester, Sarnia has the same summer highs, 10°F (5°C) milder winter nights and twice the winter rain.
Rochester gets 33 in (849 mm) of rain a year and Sarnia 34 in (857 mm). July is the warmest month in both, with highs of 82°F (28°C) in Rochester and 81°F (27°C) in Sarnia.
Climate fingerprints: ring color = average temperature, thickness = rain. January at the top.
Month by month
Highs and lows (°F)
RochesterSarniasolid = high, dashed = low
Rain (in per month)
RochesterSarnia
Monthly averages
| Month | High | Low | Rain | |||
|---|---|---|---|---|---|---|
| Rochester | Sarnia | Rochester | Sarnia | Rochester | Sarnia | |
| Jan | 24°F(-4°C) | 31°F(0°C) | 7°F(-14°C) | 18°F(-8°C) | 0.9 in(23 mm) | 2.3 in(58 mm) |
| Feb | 29°F(-1°C) | 33°F(1°C) | 11°F(-11°C) | 18°F(-8°C) | 0.9 in(23 mm) | 2.2 in(56 mm) |
| Mar | 42°F(6°C) | 42°F(5°C) | 25°F(-4°C) | 26°F(-3°C) | 1.9 in(48 mm) | 2.1 in(53 mm) |
| Apr | 57°F(14°C) | 53°F(12°C) | 36°F(2°C) | 36°F(2°C) | 3.1 in(78 mm) | 3.1 in(78 mm) |
| May | 70°F(21°C) | 66°F(19°C) | 47°F(9°C) | 46°F(8°C) | 4.4 in(111 mm) | 3.2 in(81 mm) |
| Jun | 79°F(26°C) | 76°F(25°C) | 57°F(14°C) | 56°F(13°C) | 4.8 in(122 mm) | 3.6 in(91 mm) |
| Jul | 82°F(28°C) | 81°F(27°C) | 61°F(16°C) | 62°F(17°C) | 4.2 in(106 mm) | 2.7 in(69 mm) |
| Aug | 80°F(27°C) | 80°F(27°C) | 59°F(15°C) | 62°F(16°C) | 4.3 in(109 mm) | 2.8 in(72 mm) |
| Sep | 73°F(23°C) | 74°F(23°C) | 51°F(11°C) | 55°F(13°C) | 3.4 in(86 mm) | 3.5 in(89 mm) |
| Oct | 60°F(15°C) | 62°F(16°C) | 39°F(4°C) | 45°F(7°C) | 2.7 in(69 mm) | 3.1 in(78 mm) |
| Nov | 43°F(6°C) | 48°F(9°C) | 27°F(-3°C) | 34°F(1°C) | 1.7 in(42 mm) | 2.8 in(72 mm) |
| Dec | 29°F(-2°C) | 37°F(3°C) | 14°F(-10°C) | 25°F(-4°C) | 1.3 in(32 mm) | 2.4 in(60 mm) |
1991–2020 averages, by calendar month.