Alliston Weather History Ontario, Canada

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Past date: Past date must be from 1st Jan, 2009 onwards.

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Daily and hourly data from 1 Jan 2009 onwards.
Yearly Monthly Averages
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Wed 18 Jun, 2025 Weather in Alliston

Sunrise: 05:36 AM Sunset: 09:06 PM	Moonrise: 01:13 AM Moonset: 01:13 PM	Max: 23.3 °c	Min: 17.0 °c	Avg: 19.6 °c	Precip: 20.09 mm	Max Wind: 13.7 kph

	Wed 18 0:00 am	Wed 18 3:00 am	Wed 18 6:00 am	Wed 18 9:00 am	Wed 18 12:00 pm	Wed 18 3:00 pm	Wed 18 6:00 pm	Wed 18 9:00 pm
Icon
Temp	20.5°c	18.8°c	17.3°c	17.8°c	21.7°c	21.9°c	19.4°c	19.0°c
Wind	9.7 kmph	5.8 kmph	6.5 kmph	1.4 kmph	5.0 kmph	7.6 kmph	2.2 kmph	7.9 kmph
Precip	0.00 mm	0.00 mm	0.00 mm	0.00 mm	0.00 mm	3.35 mm	3.35 mm	0.00 mm
Cloud	58%	100%	100%	100%	79%	79%	100%	99%
Humidity	95%	98%	98%	97%	87%	88%	96%	97%
Pressure	1009 mb	1010 mb	1011 mb	1011 mb	1011 mb	1010 mb	1009 mb	1007 mb

Alliston Annual Weather Averages

Month	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
January	-4°C / 25°F	-10°C / 13°F	-7°C / 20°F	50 hours	60.52 mm / 2.38 In	12 days	1017 mb / 30 In
February	-3°C / 27°F	-10°C / 14°F	-6°C / 21°F	55 hours	65.39 mm / 2.57 In	11 days	1017 mb / 31 In
March	3°C / 37°F	-5°C / 23°F	-1°C / 30°F	98 hours	74.97 mm / 2.95 In	9 days	1017 mb / 31 In
April	9°C / 49°F	1°C / 34°F	5°C / 41°F	123 hours	105.79 mm / 4.16 In	10 days	1015 mb / 30 In
May	17°C / 63°F	7°C / 45°F	12°C / 54°F	189 hours	79.69 mm / 3.14 In	7 days	1016 mb / 30 In
June	21°C / 70°F	12°C / 54°F	17°C / 62°F	197 hours	109.19 mm / 4.30 In	9 days	1013 mb / 30 In
July	24°C / 76°F	16°C / 60°F	20°C / 68°F	223 hours	101.54 mm / 4.00 In	8 days	1014 mb / 30 In
August	24°C / 75°F	15°C / 60°F	20°C / 67°F	219 hours	99.39 mm / 3.91 In	9 days	1014 mb / 30 In
September	21°C / 69°F	12°C / 53°F	16°C / 61°F	197 hours	87.15 mm / 3.43 In	7 days	1017 mb / 31 In
October	13°C / 56°F	6°C / 43°F	9°C / 49°F	127 hours	96.91 mm / 3.82 In	9 days	1016 mb / 30 In
November	6°C / 43°F	0°C / 32°F	3°C / 37°F	113 hours	66.70 mm / 2.63 In	9 days	1017 mb / 31 In
December	0°C / 32°F	-5°C / 23°F	-2°C / 28°F	53 hours	79.88 mm / 3.14 In	13 days	1017 mb / 31 In

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