Weather in St. Catharines, Canada
Historical monthly conditions · 2021–2025
Monthly averages
Average daily air-temperature lows/highs and peak wind gusts. Rain is the average monthly total.
| Month | Avg low | Avg high | Rain | Cloud cover | Avg peak gust |
|---|---|---|---|---|---|
| January | -4°C | 0°C | 76.7 mm | 83% | 43.1 km/h |
| February | -4°C | 1°C | 76.3 mm | 71% | 46.8 km/h |
| March | 0°C | 6°C | 80.3 mm | 66% | 45.3 km/h |
| April | 4°C | 10°C | 103.8 mm | 64% | 39.3 km/h |
| May | 10°C | 16°C | 71.4 mm | 57% | 32.3 km/h |
| June | 16°C | 22°C | 77.2 mm | 55% | 34.2 km/h |
| July | 20°C | 25°C | 124.5 mm | 50% | 31.7 km/h |
| August | 19°C | 24°C | 72.1 mm | 52% | 31.2 km/h |
| September | 16°C | 21°C | 65.1 mm | 50% | 32.1 km/h |
| October | 11°C | 16°C | 86.6 mm | 57% | 38.4 km/h |
| November | 4°C | 9°C | 69.6 mm | 64% | 44.4 km/h |
| December | 0°C | 4°C | 94.1 mm | 79% | 46.1 km/h |
Weather match by month
Feels like 15°C–30°C · cloud ≤60% · rain ≤0.1 mm/h · gust ≤50 km/h
Feels-like temperature accounts for humidity and wind in shade. Percentages cover 08:00–20:00 local solar time.
| Month | Match rate | |
|---|---|---|
| January | 0.0% | |
| February | 0.0% | |
| March | 0.0% | |
| April | 0.3% | |
| May | 10.5% | |
| June | 36.6% | |
| July | 50.9% | |
| August | 45.6% | |
| September | 42.4% | |
| October | 10.7% | |
| November | 0.2% | |
| December | 0.0% |
About this location and data
- Urban-centre population
- 145,332
- Elevation
- 123 m
- Coordinates
- 43.17°N, 79.24°W
- Urban area
- 67 km²
Weather averages use 2 ERA5 grid cells, weighted by the area of the urban centre in each cell.
2021-2025 recent-weather sample (not a 30-year normal).
How the weather scores are calculatedNearby places with higher scores
Annual results for the default weather criteria: