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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Wed 18 Jun, 2025 Weather in Waltham

Sunrise: 05:08 AM Sunset: 08:25 PM	Moonrise: 12:36 AM Moonset: 12:37 PM	Max: 23.5 °c	Min: 16.6 °c	Avg: 20.3 °c	Precip: 19.59 mm	Max Wind: 14.0 kph

	Wed 18 0:00 am	Wed 18 3:00 am	Wed 18 6:00 am	Wed 18 9:00 am	Wed 18 12:00 pm	Wed 18 3:00 pm	Wed 18 6:00 pm	Wed 18 9:00 pm
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Temp	16.8°c	17.0°c	18.1°c	20.4°c	22.8°c	23.5°c	22.4°c	20.9°c
Wind	7.9 kmph	6.8 kmph	6.8 kmph	7.9 kmph	8.3 kmph	14.0 kmph	10.1 kmph	6.1 kmph
Precip	1.49 mm	2.86 mm	1.37 mm	0.00 mm	0.00 mm	0.00 mm	0.00 mm	0.97 mm
Cloud	100%	100%	82%	55%	36%	62%	97%	98%
Humidity	97%	98%	93%	83%	76%	77%	86%	94%
Pressure	1016 mb	1015 mb	1015 mb	1015 mb	1014 mb	1013 mb	1013 mb	1012 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	178 hours	90.58 mm / 3.57 In	7 days	1016 mb / 30 In
February	3°C / 37°F	-5°C / 23°F	-1°C / 30°F	149 hours	93.45 mm / 3.68 In	7 days	1016 mb / 30 In
March	7°C / 45°F	-1°C / 30°F	3°C / 37°F	153 hours	111.90 mm / 4.41 In	7 days	1016 mb / 30 In
April	13°C / 56°F	5°C / 40°F	9°C / 48°F	153 hours	101.47 mm / 3.99 In	8 days	1015 mb / 30 In
May	19°C / 67°F	10°C / 50°F	15°C / 58°F	186 hours	71.79 mm / 2.83 In	7 days	1016 mb / 30 In
June	24°C / 75°F	14°C / 58°F	19°C / 67°F	190 hours	95.66 mm / 3.77 In	9 days	1013 mb / 30 In
July	28°C / 82°F	18°C / 65°F	23°C / 73°F	216 hours	108.23 mm / 4.26 In	9 days	1014 mb / 30 In
August	27°C / 81°F	18°C / 64°F	22°C / 72°F	231 hours	94.79 mm / 3.73 In	8 days	1015 mb / 30 In
September	23°C / 73°F	14°C / 58°F	18°C / 65°F	210 hours	90.29 mm / 3.55 In	6 days	1018 mb / 31 In
October	16°C / 61°F	9°C / 48°F	13°C / 55°F	176 hours	105.83 mm / 4.17 In	7 days	1017 mb / 31 In
November	10°C / 50°F	3°C / 37°F	6°C / 43°F	201 hours	93.22 mm / 3.67 In	6 days	1018 mb / 31 In
December	4°C / 40°F	-1°C / 29°F	1°C / 35°F	173 hours	123.60 mm / 4.87 In	8 days	1017 mb / 31 In

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