Waltham 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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Fri 07 Aug, 2026 Weather in Waltham

Sunrise: 05:43 AM Sunset: 07:57 PM	Moonrise: Does not rise today Moonset: 03:29 PM	Max: 35.5 °c	Min: 23.7 °c	Avg: 29.1 °c	Precip: 2.60 mm	Max Wind: 14.1 kph

	Fri 07 0:00 am	Fri 07 3:00 am	Fri 07 6:00 am	Fri 07 9:00 am	Fri 07 12:00 pm	Fri 07 3:00 pm	Fri 07 6:00 pm	Fri 07 9:00 pm
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Temp	25.6°c	24.6°c	23.7°c	27.0°c	34.0°c	35.0°c	34.2°c	27.7°c
Wind	7.6 kmph	6.5 kmph	6.8 kmph	6.8 kmph	8.6 kmph	12.6 kmph	9.0 kmph	6.1 kmph
Precip	0.00 mm	0.00 mm	0.00 mm	0.00 mm	0.00 mm	0.70 mm	0.00 mm	0.00 mm
Cloud	46%	0%	0%	0%	0%	73%	0%	0%
Humidity	87%	91%	91%	82%	51%	32%	43%	75%
Pressure	1018 mb	1018 mb	1018 mb	1018 mb	1017 mb	1016 mb	1015 mb	1016 mb

Waltham Annual Weather Averages

Month	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
January	1°C / 34°F	-5°C / 22°F	-2°C / 28°F	179 hours	93.02 mm / 3.66 In	7 days	1016 mb / 30 In
February	3°C / 37°F	-5°C / 23°F	-1°C / 30°F	149 hours	99.99 mm / 3.94 In	7 days	1016 mb / 30 In
March	7°C / 45°F	-1°C / 30°F	3°C / 37°F	152 hours	121.36 mm / 4.78 In	7 days	1017 mb / 30 In
April	13°C / 56°F	4°C / 40°F	9°C / 48°F	153 hours	102.24 mm / 4.03 In	8 days	1015 mb / 30 In
May	19°C / 67°F	10°C / 50°F	15°C / 58°F	170 hours	92.37 mm / 3.64 In	7 days	1016 mb / 30 In
June	24°C / 76°F	15°C / 59°F	19°C / 67°F	177 hours	102.23 mm / 4.02 In	8 days	1013 mb / 30 In
July	28°C / 83°F	19°C / 65°F	23°C / 74°F	201 hours	116.10 mm / 4.57 In	9 days	1014 mb / 30 In
August	27°C / 81°F	18°C / 64°F	22°C / 72°F	229 hours	93.62 mm / 3.69 In	7 days	1015 mb / 30 In
September	23°C / 73°F	14°C / 58°F	18°C / 65°F	208 hours	88.98 mm / 3.50 In	6 days	1018 mb / 31 In
October	16°C / 61°F	9°C / 48°F	13°C / 55°F	177 hours	117.73 mm / 4.63 In	7 days	1017 mb / 31 In
November	10°C / 50°F	3°C / 37°F	6°C / 43°F	200 hours	93.04 mm / 3.66 In	6 days	1018 mb / 31 In
December	4°C / 40°F	-2°C / 29°F	1°C / 34°F	173 hours	131.39 mm / 5.17 In	8 days	1017 mb / 31 In

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