Chelmsford 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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Fri 25 Apr, 2025 Weather in Chelmsford

Sunrise: 06:19 AM Sunset: 08:27 PM	Moonrise: 05:11 AM Moonset: 05:58 PM	Max: 10.9 °c	Min: 2.6 °c	Avg: 5.3 °c	Precip: 34.96 mm	Max Wind: 21.2 kph

	Fri 25 0:00 am	Fri 25 3:00 am	Fri 25 6:00 am	Fri 25 9:00 am	Fri 25 12:00 pm	Fri 25 3:00 pm	Fri 25 6:00 pm	Fri 25 9:00 pm
Icon
Temp	10.9°c	7.3°c	5.2°c	4.5°c	5.1°c	4.7°c	4.3°c	3.2°c
Wind	10.4 kmph	13.3 kmph	14.8 kmph	13.7 kmph	16.2 kmph	14.0 kmph	17.6 kmph	20.5 kmph
Precip	0.00 mm	0.00 mm	0.00 mm	0.00 mm	0.00 mm	0.00 mm	0.00 mm	6.49 mm
Cloud	100%	65%	100%	100%	100%	100%	100%	100%
Humidity	63%	83%	93%	90%	76%	94%	96%	95%
Pressure	1023 mb	1025 mb	1025 mb	1024 mb	1022 mb	1020 mb	1017 mb	1016 mb

Chelmsford Annual Weather Averages

Month	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
January	-7°C / 19°F	-16°C / 3°F	-11°C / 11°F	48 hours	48.43 mm / 1.91 In	11 days	1017 mb / 30 In
February	-6°C / 21°F	-15°C / 5°F	-10°C / 13°F	33 hours	51.34 mm / 2.02 In	10 days	1017 mb / 31 In
March	0°C / 32°F	-9°C / 16°F	-4°C / 24°F	76 hours	77.46 mm / 3.05 In	8 days	1018 mb / 31 In
April	7°C / 44°F	-2°C / 28°F	2°C / 36°F	100 hours	102.85 mm / 4.05 In	10 days	1015 mb / 30 In
May	17°C / 62°F	6°C / 42°F	11°C / 52°F	177 hours	76.47 mm / 3.01 In	8 days	1015 mb / 30 In
June	21°C / 71°F	11°C / 51°F	16°C / 61°F	170 hours	91.09 mm / 3.59 In	7 days	1012 mb / 30 In
July	24°C / 76°F	14°C / 57°F	19°C / 66°F	200 hours	91.95 mm / 3.62 In	9 days	1013 mb / 30 In
August	23°C / 74°F	13°C / 55°F	18°C / 64°F	190 hours	100.54 mm / 3.96 In	9 days	1014 mb / 30 In
September	19°C / 66°F	9°C / 49°F	14°C / 57°F	180 hours	97.07 mm / 3.82 In	8 days	1016 mb / 30 In
October	11°C / 51°F	3°C / 38°F	7°C / 44°F	118 hours	117.40 mm / 4.62 In	8 days	1015 mb / 30 In
November	3°C / 38°F	-3°C / 26°F	0°C / 32°F	91 hours	85.23 mm / 3.36 In	9 days	1016 mb / 30 In
December	-3°C / 26°F	-10°C / 14°F	-7°C / 20°F	63 hours	66.25 mm / 2.61 In	10 days	1017 mb / 31 In

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