Average annual temperature is 15.3 °C
Absolute maximum temperature: 39.6 °C
Absolute minimum temperature: -10.4 °C
Number of sunny days: 215 days
Number of rainy days: 148 days
Number of snow days: 2 days
Look at detailed online map of Petrolia
* Weather data for Petrolia United States is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 18.7 | 20.0 | 25.7 | 27.2 | 32.9 | 39.3 | 37.6 | 39.6 | 36.5 | 31.7 | 24.6 | 16.2 |
| Average daytime temperature (°C) | 9.1 | 11.3 | 13.7 | 21.1 | 26.5 | 31.1 | 33.6 | 33.7 | 30.1 | 21.5 | 14.6 | 10.4 |
| Average temperature (°C) | 3.0 | 4.4 | 7.6 | 14.1 | 20.0 | 24.7 | 27.1 | 27.5 | 23.4 | 15.9 | 8.8 | 5.8 |
| Average night temperature (°C) | -1.0 | -0.6 | 2.6 | 8.1 | 14.5 | 19.0 | 22.1 | 22.2 | 18.0 | 11.6 | 4.4 | 2.4 |
| Absolute minimum temperature (°C) | -10.4 | -8.9 | -6.9 | 0.4 | 5.5 | 13.0 | 16.7 | 16.1 | 12.3 | -2.2 | -5.2 | -2.9 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.9 | 10.8 | 12.0 | 13.2 | 14.2 | 14.7 | 14.5 | 13.6 | 12.4 | 11.2 | 10.2 | 9.6 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 6.3 | 7.7 | 7.6 | 10.1 | 10.2 | 12.8 | 11.5 | 12.0 | 10.5 | 8.0 | 7.4 | 5.3 |
| Precipitation (mm) | 60 | 50 | 67 | 40 | 79 | 45 | 67 | 93 | 33 | 75 | 49 | 72 |
| Sunny days | 19 | 16 | 14 | 18 | 13 | 18 | 16 | 22 | 19 | 19 | 22 | 19 |
| Rainy days | 11 | 11 | 17 | 12 | 18 | 12 | 15 | 9 | 11 | 12 | 8 | 12 |
| Snow days | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Petrolia during the most sunny months:
The largest precipitation sum in Petrolia is at