Contents
- Weather in October
- Frequently asked questions
- Average temperature in October
- Average pressure in October
- Average wind speed in October
- Average humidity in October
- Average rainfall in October
- Average rainfall days in October
- Average snowfall in October
- Average snowfall days in October
- Average daylight in October
- Average sunshine in October
- Average sunshine days in October
- Average UV index in October
- Average cloud cover in October
- Average visibility in October
Weather in October
Temperature
The transition into October indicates a reduction in the average high-temperature, down to a moderate 55.9°F (13.3°C) from September's agreeable 69.1°F (20.6°C). Throughout the nights in October, Williamstown experiences an average low-temperature of 41°F (5°C).Humidity
The average relative humidity in October is 83%.Rainfall
October is the month with the most rainfall. Rain falls for 15.5 days and accumulates 3.62" (92mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. October is the first month it typically snows. Throughout October, in the average 0.9 snowfall days, it receives 0.87" (22mm) of snow. Throughout the year, there are 66.1 snowfall days, and 39.09" (993mm) of snow is accumulated.Daylight
In October, the average length of the day in Williamstown is 11h and 2min.On the first day of October, sunrise is at 6:50 am and sunset at 6:33 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 5:46 pm EDT.
Sunshine
In Williamstown, the average sunshine in October is 5.1h.UV index
In October, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the average person.Note: During October, 2 as the daily maximum UV index converts into the following advice:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. To protect against the Sun's most potent rays, avoid direct exposure around midday. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in October?
What is the average humidity in October in Williamstown?
What is the wettest month?
How much does it rain in October?
When does it start to snow?
What is the average length of the day in October?
When are sunrise and sunset in October?
How long on average sun shines in October in Williamstown?
How high is the UV index in October?
Average temperature in October
Williamstown, MA
- Average high temperature in October: 55.9°F
The warmest month (with the highest average high temperature) is July (78.6°F).
The month with the lowest average high temperature is January (27°F).
- Average low temperature in October: 41°F
The month with the highest average low temperature is July (57°F).
The coldest month (with the lowest average low temperature) is January (14.7°F).
Average pressure in October
Williamstown, MA
- Average pressure in October: 30.01"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in October
Williamstown, MA
- Average wind speed in October: 7mph
The windiest months (with the highest average wind speed) are January and February (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in October
Williamstown, MA
- Average humidity in October: 83%
The month with the highest relative humidity is February (86%).
The month with the lowest relative humidity is April (77%).
Average rainfall in October
Williamstown, MA
- Average rainfall in October: 3.62"
The wettest month (with the highest rainfall) is October (3.62").
The driest month (with the least rainfall) is March (2.6").
Average rainfall days in October
Williamstown, MA
- Average rainfall days in October: 15.5 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is February (7.8 days).
Average snowfall in October
Williamstown, MA
- Average snowfall in October: 0.87"
The month with the highest snowfall is February (10").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in October
Williamstown, MA
- Average snowfall days in October: 0.9 days
The month with the highest number of snowfall days is February (15.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in October /
Average sunshine in October
Williamstown, MA
- Average daylight in October: 11h and 0min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in October: 5h and 1min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 3h and 24min).
Average sunshine days in October
Williamstown, MA
- Average sunshine days in October: 11.8 days
The month with the most sunshine days is September (14.3 days).
The month with the least sunshine days is February (9 days).
Average UV index in October
Williamstown, MA
- Average UV index in October: 2
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are February and December (UV index 1).
Average cloud cover in October
Williamstown, MA
- Average cloud cover in October: 52
The month with the most cloud cover is February (Cloud cover 64).
The months with the least cloud cover are July and August (Cloud cover 38).
Average visibility in October
Williamstown, MA
- Average visibility in October: 5mi
The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (5mi).
The month with the lowest visibility is February (4mi).
Williamstown, Massachusetts, USA
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