Sarnia 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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Sat 26 Apr, 2025 Weather in Sarnia

Sunrise: 06:30 AM Sunset: 08:25 PM	Moonrise: 05:39 AM Moonset: 07:23 PM	Max: 8.8 °c	Min: 4.5 °c	Avg: 6.4 °c	Precip: 10.86 mm	Max Wind: 32.0 kph

	Sat 26 0:00 am	Sat 26 3:00 am	Sat 26 6:00 am	Sat 26 9:00 am	Sat 26 12:00 pm	Sat 26 3:00 pm	Sat 26 6:00 pm	Sat 26 9:00 pm
Icon
Temp	8.6°c	5.7°c	4.8°c	5.2°c	7.1°c	8.4°c	6.8°c	4.5°c
Wind	27.4 kmph	27.4 kmph	25.6 kmph	26.6 kmph	31.7 kmph	31.0 kmph	26.3 kmph	13.3 kmph
Precip	2.71 mm	0.55 mm	0.00 mm	0.00 mm	0.00 mm	0.00 mm	0.00 mm	0.00 mm
Cloud	96%	100%	100%	77%	38%	16%	5%	0%
Humidity	97%	95%	93%	88%	78%	73%	77%	86%
Pressure	1012 mb	1014 mb	1017 mb	1019 mb	1021 mb	1023 mb	1024 mb	1026 mb

Sarnia Annual Weather Averages

Month	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
January	-2°C / 29°F	-7°C / 20°F	-4°C / 24°F	70 hours	67.92 mm / 2.67 In	11 days	1018 mb / 31 In
February	-1°C / 31°F	-7°C / 20°F	-4°C / 25°F	78 hours	73.59 mm / 2.90 In	9 days	1018 mb / 31 In
March	5°C / 41°F	-2°C / 28°F	1°C / 34°F	113 hours	91.56 mm / 3.60 In	8 days	1018 mb / 31 In
April	11°C / 52°F	3°C / 37°F	7°C / 44°F	131 hours	115.23 mm / 4.54 In	9 days	1015 mb / 30 In
May	18°C / 64°F	9°C / 49°F	14°C / 56°F	183 hours	96.20 mm / 3.79 In	8 days	1016 mb / 30 In
June	23°C / 73°F	14°C / 58°F	18°C / 65°F	202 hours	103.11 mm / 4.06 In	8 days	1013 mb / 30 In
July	26°C / 78°F	17°C / 63°F	22°C / 71°F	230 hours	91.56 mm / 3.60 In	8 days	1014 mb / 30 In
August	25°C / 77°F	17°C / 63°F	21°C / 70°F	223 hours	89.42 mm / 3.52 In	7 days	1015 mb / 30 In
September	22°C / 72°F	14°C / 57°F	18°C / 64°F	206 hours	78.45 mm / 3.09 In	7 days	1017 mb / 31 In
October	15°C / 59°F	8°C / 47°F	11°C / 53°F	148 hours	105.25 mm / 4.14 In	8 days	1016 mb / 30 In
November	8°C / 46°F	2°C / 35°F	5°C / 41°F	137 hours	76.49 mm / 3.01 In	8 days	1019 mb / 31 In
December	2°C / 36°F	-2°C / 28°F	0°C / 32°F	79 hours	75.52 mm / 2.97 In	11 days	1018 mb / 31 In

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