Williamstown Weather History New Jersey, United States of America

Weather History Form

Past date: Past date must be from 1st Jan, 2009 onwards.

Buy Weather Data

Daily and hourly data from 1 Jan 2009 onwards.
Yearly Monthly Averages
Monthly Climate Data
CSV format

Find out more»

Sun 23 Aug, 2026 Weather in Williamstown

Sunrise: 06:19 AM Sunset: 07:45 PM	Moonrise: 05:41 PM Moonset: 01:50 AM	Max: 28.6 °c	Min: 20.2 °c	Avg: 22.9 °c	Precip: 8.27 mm	Max Wind: 15.8 kph

	Sun 23 0:00 am	Sun 23 3:00 am	Sun 23 6:00 am	Sun 23 9:00 am	Sun 23 12:00 pm	Sun 23 3:00 pm	Sun 23 6:00 pm	Sun 23 9:00 pm
Icon
Temp	20.2°c	20.6°c	20.3°c	22.4°c	24.5°c	26.5°c	27.0°c	21.4°c
Wind	9.7 kmph	5.8 kmph	6.1 kmph	7.2 kmph	13.3 kmph	15.8 kmph	10.4 kmph	6.1 kmph
Precip	0.00 mm	4.10 mm	0.00 mm	0.00 mm	0.30 mm	0.10 mm	0.00 mm	0.00 mm
Cloud	2%	100%	94%	75%	81%	75%	0%	81%
Humidity	89%	92%	94%	87%	73%	65%	63%	76%
Pressure	1012 mb	1010 mb	1009 mb	1010 mb	1011 mb	1010 mb	1010 mb	1012 mb

Williamstown Annual Weather Averages

Month	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
January	4°C / 39°F	-3°C / 27°F	1°C / 33°F	176 hours	93.53 mm / 3.68 In	7 days	1018 mb / 31 In
February	6°C / 43°F	-2°C / 29°F	2°C / 36°F	155 hours	122.32 mm / 4.82 In	7 days	1018 mb / 31 In
March	11°C / 52°F	3°C / 37°F	7°C / 44°F	164 hours	123.82 mm / 4.87 In	7 days	1018 mb / 31 In
April	17°C / 63°F	8°C / 46°F	12°C / 54°F	165 hours	108.36 mm / 4.27 In	7 days	1016 mb / 30 In
May	22°C / 72°F	13°C / 55°F	17°C / 63°F	164 hours	113.03 mm / 4.45 In	8 days	1016 mb / 30 In
June	27°C / 81°F	18°C / 64°F	22°C / 72°F	200 hours	133.27 mm / 5.25 In	9 days	1014 mb / 30 In
July	30°C / 87°F	21°C / 70°F	25°C / 78°F	212 hours	140.64 mm / 5.54 In	10 days	1014 mb / 30 In
August	29°C / 84°F	20°C / 69°F	24°C / 76°F	226 hours	147.11 mm / 5.79 In	9 days	1016 mb / 30 In
September	25°C / 78°F	17°C / 63°F	21°C / 70°F	202 hours	121.67 mm / 4.79 In	6 days	1018 mb / 31 In
October	19°C / 66°F	11°C / 52°F	15°C / 59°F	195 hours	127.73 mm / 5.03 In	6 days	1017 mb / 31 In
November	12°C / 54°F	5°C / 41°F	9°C / 47°F	208 hours	91.60 mm / 3.61 In	5 days	1020 mb / 31 In
December	7°C / 45°F	1°C / 34°F	4°C / 39°F	173 hours	140.79 mm / 5.54 In	7 days	1019 mb / 31 In

New Jersey

Hotels Near Williamstown

Cities Near Williamstown

Quick and Easy Signup for Weather API

WeatherAPI.com makes it super easy to integrate our realtime, daily, hourly and 15 min interval weather forecast data, historical weather, marine weather, bulk request, air quality data, pollen, evapotranspiration, autocomplete, time zone, astronomy and sports data into your new or existing project.

Get Started