Full Climatology For St Lawrence
Long Term Averages
| JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANNUAL | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mean Max (°C) | 31.9 | 31.8 | 31.1 | 29.4 | 26.8 | 24.4 | 24.1 | 25.3 | 27.4 | 29.3 | 30.5 | 31.7 | 28.6 |
| Mean Min (°C) | 23.0 | 22.9 | 21.9 | 18.6 | 14.8 | 12.3 | 10.9 | 11.4 | 14.7 | 18.1 | 20.4 | 22.2 | 17.6 |
| Mean Rain (mm) | 189.5 | 164.4 | 136.0 | 44.9 | 35.6 | 33.0 | 44.6 | 24.1 | 19.7 | 39.7 | 65.2 | 116.2 | 906.3 |
| Rain Days | 13.0 | 13.0 | 12.0 | 6.0 | 7.0 | 7.0 | 7.0 | 5.0 | 3.0 | 5.0 | 8.0 | 9.0 | 99.0 |
Daily Records
| JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANNUAL | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High Max (°C) | 42.2 | 39.6 | 38.8 | 37.4 | 35.5 | 32.0 | 30.5 | 30.9 | 35.9 | 37.7 | 43.5 | 38.9 | 43.5 |
| Low Max (°C) | 22.8 | 23.7 | 22.4 | 20.1 | 14.9 | 12.0 | 12.9 | 15.2 | 20.7 | 21.5 | 22.5 | 21.3 | 12.0 |
| High Min (°C) | 28.6 | 27.4 | 27.5 | 26.3 | 21.8 | 20.5 | 20.5 | 21.5 | 23.6 | 25.6 | 26.4 | 27.0 | 28.6 |
| Low Min (°C) | 17.7 | 16.7 | 14.3 | 8.4 | 5.6 | 2.3 | 1.1 | 1.4 | 4.8 | 7.6 | 12.9 | 15.3 | 1.1 |
| High Rain (mm) | 212.8 | 209.6 | 175.8 | 107.6 | 65.8 | 65.2 | 180.4 | 53.4 | 44.8 | 73.6 | 111.2 | 96.0 | 212.8 |
Monthly Records
| JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANNUAL | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High Mean Max (°C) | 33.9 | 33.9 | 32.8 | 30.7 | 29.4 | 27.0 | 25.5 | 26.6 | 29.1 | 31.2 | 32.7 | 33.6 | 29.2 |
| Low Mean Max (°C) | 30.3 | 29.9 | 29.8 | 27.9 | 24.8 | 20.5 | 21.5 | 23.3 | 25.8 | 28.0 | 27.9 | 29.6 | 27.8 |
| High Mean Min (°C) | 24.8 | 24.1 | 23.2 | 20.2 | 18.2 | 14.5 | 13.8 | 13.5 | 18.4 | 20.4 | 22.0 | 24.1 | 18.4 |
| Low Mean Min (°C) | 22.1 | 21.9 | 19.7 | 15.7 | 12.0 | 9.9 | 7.6 | 8.7 | 11.6 | 15.2 | 18.9 | 19.9 | 16.6 |
| High Rain (mm) | 363.4 | 549.6 | 680.0 | 133.2 | 207.6 | 146.6 | 252.2 | 141.0 | 81.8 | 171.6 | 181.4 | 548.8 | 1907.6 |
| Low Rain (mm) | 8.2 | 4.2 | 0.2 | 0.2 | 2.2 | 0.8 | 0.0 | 0.0 | 0.0 | 0.4 | 0.4 | 7.6 | 523.2 |
Average Number of Days with Temperatures
| JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANNUAL | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ≥ 40.0°C | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 0.0 | 0.2 |
| ≥ 35.0°C | 0.9 | 1.0 | 0.7 | 0.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.3 | 0.7 | 0.9 | 4.4 |
| ≥ 30.0°C | 27.7 | 23.6 | 24.3 | 12.0 | 1.0 | 0.1 | 0.0 | 0.1 | 2.8 | 9.4 | 20.2 | 26.3 | 146.6 |
| ≤ 2.0°C | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 0.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.2 |
| ≤ 0.0°C | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |