inland destination · city of 72,125 · warmest in Jul · mid-range
Open Sarnia on the live value map →| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg °C | -5 | -5 | 1 | 7 | 13 | 19 | 22 | 21 | 17 | 11 | 4 | -2 |
| High °C | -2 | -1 | 5 | 12 | 19 | 25 | 27 | 26 | 23 | 16 | 8 | 2 |
| Low °C | -9 | -9 | -4 | 2 | 7 | 13 | 16 | 16 | 12 | 6 | 1 | -5 |
| Rain (days) | 52 | 50 | 59 | 74 | 76 | 84 | 72 | 79 | 99 | 71 | 80 | 66 |
Warmest month: Jul. Driest: Feb.