Chelsea Weather History Massachusetts, United States of America

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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.
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Mon 20 Oct, 2025 Weather in Chelsea

Sunrise: 07:03 AM Sunset: 05:54 PM	Moonrise: 06:11 AM Moonset: 05:18 PM	Max: 17.2 °c	Min: 13.2 °c	Avg: 15.0 °c	Precip: 39.10 mm	Max Wind: 28.8 kph

	Mon 20 0:00 am	Mon 20 3:00 am	Mon 20 6:00 am	Mon 20 9:00 am	Mon 20 12:00 pm	Mon 20 3:00 pm	Mon 20 6:00 pm	Mon 20 9:00 pm
Icon
Temp	14.1°c	14.4°c	14.8°c	15.3°c	15.9°c	16.9°c	15.5°c	13.6°c
Wind	13.3 kmph	15.5 kmph	19.1 kmph	23.8 kmph	28.8 kmph	18.4 kmph	15.8 kmph	11.2 kmph
Precip	0.00 mm	0.00 mm	0.00 mm	0.00 mm	6.50 mm	6.50 mm	0.00 mm	0.00 mm
Cloud	79%	96%	96%	100%	100%	60%	19%	36%
Humidity	94%	95%	96%	97%	97%	89%	86%	91%
Pressure	1015 mb	1014 mb	1012 mb	1010 mb	1007 mb	1006 mb	1006 mb	1008 mb

Chelsea Annual Weather Averages

Month	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
January	2°C / 35°F	-4°C / 24°F	-1°C / 30°F	171 hours	100.53 mm / 3.96 In	7 days	1016 mb / 30 In
February	3°C / 38°F	-4°C / 25°F	0°C / 31°F	138 hours	105.71 mm / 4.16 In	8 days	1016 mb / 30 In
March	7°C / 45°F	0°C / 32°F	3°C / 38°F	147 hours	132.07 mm / 5.20 In	7 days	1016 mb / 30 In
April	13°C / 55°F	5°C / 41°F	9°C / 48°F	154 hours	115.07 mm / 4.53 In	8 days	1015 mb / 30 In
May	19°C / 66°F	10°C / 51°F	15°C / 58°F	179 hours	103.12 mm / 4.06 In	8 days	1016 mb / 30 In
June	24°C / 75°F	15°C / 59°F	19°C / 67°F	189 hours	108.45 mm / 4.27 In	9 days	1013 mb / 30 In
July	28°C / 82°F	19°C / 66°F	23°C / 74°F	212 hours	115.80 mm / 4.56 In	8 days	1014 mb / 30 In
August	27°C / 81°F	18°C / 65°F	22°C / 72°F	224 hours	95.42 mm / 3.76 In	7 days	1015 mb / 30 In
September	23°C / 73°F	15°C / 59°F	19°C / 66°F	203 hours	98.18 mm / 3.87 In	6 days	1018 mb / 31 In
October	17°C / 63°F	10°C / 49°F	13°C / 56°F	177 hours	128.52 mm / 5.06 In	8 days	1016 mb / 30 In
November	11°C / 51°F	4°C / 38°F	7°C / 45°F	196 hours	109.03 mm / 4.29 In	6 days	1018 mb / 31 In
December	5°C / 42°F	-1°C / 31°F	2°C / 36°F	164 hours	141.98 mm / 5.59 In	8 days	1017 mb / 31 In

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