Alliston, Canada Climate
Canada
Pop. 18,809 Elev. 223 m / 732 ft
TZ: America/Toronto (UTC-4) ·
Dry and warm, Alliston sees July highs of 83°F (28°C) and cold January lows of 13°F (-11°C). Wind chill can push winter lows to 4°F (-16°C). Expect around 38 rainy days annually (23.4 in / 595 mm total), with snow on 11 days and 91 in (2315 mm) of annual accumulation. Overcast skies are common, with only 81 sunny days per year. Ocean water temperatures reach 71°F (22°C) in summer.
| Temperature | 28°C (83°F) high | -11°C (13°F) low |
| Feels like | 31°C (87°F) high | -16°C (4°F) low |
| Rain | 38 days | 595 mm (23.4 in) /yr |
| Snow | 11 days | 2315 mm (91.1 in) /yr |
| Sky | 81 sunny | 17 stormy |
| Wind | 1.4 m/s (3.0 mph) avg |
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Explore on the MapMonthly Climate Chart
Best months to visit: Jul, Aug, Sep
Sky & Air by Month
Cloud cover (%)
78
Jan 84
Feb 75
Mar 70
Apr 67
May 55
Jun 51
Jul 48
Aug 42
Sep 46
Oct 76
Nov 83
Dec Humidity (%)
78
Jan 76
Feb 68
Mar 62
Apr 67
May 66
Jun 68
Jul 68
Aug 72
Sep 74
Oct 78
Nov 78
Dec Weather Days by Month
Water Temperatures
Cities with Similar Climate
Find similar cities on the map →Nearby Cities
Nearby
Commercial airport 45 km Barrie-Lake Simcoe Regional Airport (YLK)
Ski resort 16 km Mansfield Ski Club
National park 3 km Beattie Pinery Provincial Park
Hospital 2 km Stevenson Memorial Hospital
Hiking trail 14 km Thornton-Cookstown Trans Canada Trail (hiking)
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Monthly Weather Data
↑ See chart| Month | Avg High | Avg Low | Rainfall | Snowfall | Sunny Days |
|---|---|---|---|---|---|
| January | -4°C 25°F | -11°C 13°F | 1 mm 0.1 in | 478 mm18.8 in | 1 |
| February | -3°C 27°F | -10°C 13°F | 2 mm 0.1 in | 784 mm30.9 in | 0 |
| March | 7°C 44°F | -4°C 25°F | 60 mm 2.4 in | 118 mm4.6 in | 4 |
| April | 12°C 53°F | 1°C 34°F | 47 mm 1.9 in | 139 mm5.5 in | 6 |
| May | 18°C 64°F | 8°C 46°F | 89 mm 3.5 in | — | 6 |
| June | 25°C 78°F | 14°C 58°F | 86 mm 3.4 in | — | 7 |
| July | 28°C 83°F | 16°C 61°F | 54 mm 2.1 in | — | 12 |
| August | 25°C 78°F | 14°C 58°F | 51 mm 2.0 in | — | 13 |
| September | 22°C 72°F | 11°C 51°F | 63 mm 2.5 in | — | 17 |
| October | 16°C 60°F | 5°C 42°F | 65 mm 2.6 in | — | 13 |
| November | 5°C 42°F | -1°C 30°F | 41 mm 1.6 in | 256 mm10.1 in | 2 |
| December | -1°C 30°F | -9°C 15°F | 36 mm 1.4 in | 541 mm21.3 in | 0 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 1 | 0 |
| February | 0 | 0 |
| March | 4 | 1 |
| April | 6 | 2 |
| May | 6 | 2 |
| June | 7 | 3 |
| July | 12 | 1 |
| August | 13 | 2 |
| September | 17 | 3 |
| October | 13 | 1 |
| November | 2 | 1 |
| December | 0 | 1 |
Water Temperatures Data
↑ See chart| Month | Ocean Avg High | Lake Avg High |
|---|---|---|
| January | 3°C 38°F | 0°C 32°F |
| February | 1°C 34°F | 0°C 32°F |
| March | 1°C 33°F | 0°C 33°F |
| April | 2°C 36°F | 4°C 40°F |
| May | 6°C 43°F | 12°C 54°F |
| June | 15°C 58°F | 18°C 65°F |
| July | 21°C 69°F | 23°C 73°F |
| August | 22°C 71°F | 21°C 70°F |
| September | 18°C 65°F | 17°C 62°F |
| October | 17°C 62°F | 12°C 54°F |
| November | 11°C 51°F | 3°C 37°F |
| December | 6°C 43°F | 0°C 32°F |