Grafton Weather History Massachusetts, United States of America

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Daily and hourly data from 1 Jan 2009 onwards.
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Thu 15 Jan, 2026 Weather in Grafton

Sunrise: 07:13 AM Sunset: 04:40 PM	Moonrise: 05:05 AM Moonset: 01:30 PM	Max: 4.7 °c	Min: -5.6 °c	Avg: 1.0 °c	Precip: 3.20 mm	Max Wind: 20.9 kph

	Thu 15 0:00 am	Thu 15 3:00 am	Thu 15 6:00 am	Thu 15 9:00 am	Thu 15 12:00 pm	Thu 15 3:00 pm	Thu 15 6:00 pm	Thu 15 9:00 pm
Icon
Temp	4.6°c	4.6°c	4.5°c	2.6°c	1.6°c	-0.3°c	-3.1°c	-5.6°c
Wind	7.6 kmph	7.6 kmph	6.8 kmph	11.9 kmph	16.6 kmph	20.2 kmph	17.6 kmph	17.6 kmph
Precip	0.00 mm	0.00 mm	0.50 mm	0.50 mm	0.00 mm	0.00 mm	0.00 mm	0.00 mm
Cloud	99%	100%	100%	82%	33%	18%	67%	52%
Humidity	93%	97%	97%	83%	63%	57%	55%	49%
Pressure	998 mb	995 mb	993 mb	994 mb	996 mb	998 mb	1000 mb	1003 mb

Grafton Annual Weather Averages

Month	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
January	1°C / 34°F	-6°C / 21°F	-2°C / 28°F	172 hours	103.51 mm / 4.08 In	8 days	1016 mb / 30 In
February	3°C / 37°F	-6°C / 22°F	-1°C / 29°F	142 hours	107.38 mm / 4.23 In	8 days	1016 mb / 30 In
March	7°C / 45°F	-2°C / 29°F	3°C / 37°F	151 hours	127.66 mm / 5.03 In	8 days	1017 mb / 30 In
April	14°C / 57°F	4°C / 39°F	9°C / 47°F	153 hours	114.49 mm / 4.51 In	8 days	1015 mb / 30 In
May	20°C / 68°F	9°C / 49°F	14°C / 58°F	174 hours	118.49 mm / 4.66 In	8 days	1016 mb / 30 In
June	25°C / 76°F	14°C / 57°F	19°C / 66°F	181 hours	123.52 mm / 4.86 In	9 days	1013 mb / 30 In
July	28°C / 83°F	18°C / 64°F	23°C / 73°F	204 hours	128.53 mm / 5.06 In	10 days	1014 mb / 30 In
August	27°C / 81°F	17°C / 62°F	22°C / 71°F	218 hours	112.70 mm / 4.44 In	8 days	1015 mb / 30 In
September	23°C / 74°F	13°C / 56°F	18°C / 64°F	200 hours	108.85 mm / 4.29 In	6 days	1018 mb / 31 In
October	16°C / 62°F	8°C / 46°F	12°C / 53°F	172 hours	134.89 mm / 5.31 In	8 days	1017 mb / 31 In
November	10°C / 50°F	2°C / 35°F	6°C / 42°F	199 hours	106.68 mm / 4.20 In	6 days	1018 mb / 31 In
December	4°C / 40°F	-2°C / 28°F	1°C / 34°F	170 hours	150.28 mm / 5.92 In	8 days	1017 mb / 31 In

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