Discover the best time of year, based on historical climate, temperature, and precipitation.
The best time to visit Alliston is May, June, September, when the weather, flight prices, and crowds align. — variable climate
🌨Cold
Contains affiliate links.
Contains affiliate links.
Contains affiliate links.
| Score | 10 | 12 | 15 | 36 | 83 | 80 | 79 | 79 | 84 | 56 | 18 | 9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Climate | Polar | Polar | Cold | Cold | Mild | Humid | Humid | Humid | Mild | Cold | Cold | Polar |
| Temperature | -8–0°C | -9–1°C | -3–7°C | 2–13°C | 7–19°C | 14–25°C | 16–27°C | 16–26°C | 12–22°C | 7–16°C | 1–9°C | -4–3°C |
| Feels like | -13–-5°C | -14–-4°C | -8–3°C | -2–9°C | 5–18°C | 13–25°C | 16–28°C | 16–27°C | 11–22°C | 4–13°C | -3–5°C | -8–-2°C |
| Precipitation | 75mm 10 days | 59mm 10 days | 63mm 10 days | 77mm 11 days | 63mm 11 days | 92mm 12 days | 91mm 12 days | 91mm 10 days | 69mm 10 days | 68mm 12 days | 50mm 11 days | 75mm 12 days |
| Sunshine | 2.4h ☀︎ 25% | 5.0h ☀︎ 48% | 6.1h ☀︎ 51% | 7.9h ☀︎ 58% | 11.0h ☀︎ 74% | 12.1h ☀︎ 78% | 12.3h ☀︎ 81% | 11.0h ☀︎ 79% | 9.8h ☀︎ 78% | 6.3h ☀︎ 58% | 4.8h ☀︎ 50% | 2.3h ☀︎ 25% |
| Wind | W · 17 km/h | W · 20 km/h | W · 21 km/h | W · 20 km/h | W · 18 km/h | W · 18 km/h | W · 16 km/h | W · 16 km/h | SW · 17 km/h | SW · 18 km/h | SW · 20 km/h | SW · 19 km/h |
| Humidity (%) | 79% | 73% | 69% | 67% | 65% | 67% | 72% | 75% | 75% | 76% | 74% | 79% |
| Perfect days | 0% | 0% | 1% | 6% | 28% | 38% | 38% | 45% | 39% | 13% | 1% | 0% |
| Dry streak | 7d | 7d | 7d | 7d | 8d | 6d | 6d | 7d | 9d | 6d | 7d | 6d |
| Sunny streak | 4d | 6d | 8d | 9d | 15d | 18d | 21d | 18d | 12d | 8d | 5d | 3d |
| Extreme heat | — | — | — | — | — | — | 0% | — | — | — | — | — |
| Extreme cold | 94% | 96% | 82% | 41% | 2% | — | — | — | — | 6% | 49% | 84% |
| Temperature | +1.1° | +2.9° | +3.8° | +0.3° | +1.3° | +0.7° | +1.0° | +0.8° | +0.9° | +1.9° | +1.2° | +2.6° |
| Rainfall | Stable | Stable | Stable | Stable | Stable | Stable | Stable | Getting wetter | Stable | Stable | Stable | Stable |
| Ideal warm days | 0% | 0% | 0% | 1% | 10% | 15% | 34% | 29% | 15% | 2% | 0% | 0% |
| Outdoor comfort | 0% | 0% | 1% | 7% | 29% | 37% | 31% | 40% | 39% | 13% | 1% | 0% |
| Dry week odds | 7% | 8% | 8% | 9% | 10% | 4% | 4% | 5% | 13% | 4% | 8% | 5% |
| Heavy rain | 1% | 1% | 1% | 1% | 2% | 2% | 2% | 1% | 2% | 1% | 1% | 1% |
| Snow days | 61% | 57% | 37% | 21% | 1% | — | — | — | — | 3% | 26% | 55% |
| Muggy days | — | — | — | — | — | 2% | 6% | 5% | 2% | — | — | — |
| Day length | 9.3h | 10.5h | 12.0h | 13.5h | 14.8h | 15.4h | 15.1h | 14.0h | 12.5h | 11.0h | 9.6h | 8.9h |
| Tourist Crowds | Low season | Low season | Low season | Shoulder season | Shoulder season | High season | High season | High season | High season | Shoulder season | Shoulder season | Shoulder season |