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 sea temperature 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
A minor decrease in the average high-temperature is observed during October, shifting from an agreeable 68.9°F (20.5°C) in September to a mild 60.1°F (15.6°C). During October, Onset's nights hold steady with an average temperature of 52.3°F (11.3°C), barely dropping from the daytime highs.Humidity
In Onset, the average relative humidity in October is 77%.Rainfall
In October, the rain falls for 14.4 days. Throughout October, 3.43" (87mm) of precipitation is accumulated. In Onset, during the entire year, the rain falls for 157.4 days and collects up to 32.2" (818mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. October is the first month it typically snows. Throughout October, in the average 0.1 snowfall days, it receives 0.16" (4mm) of snow. In Onset, during the entire year, snow falls for 21.7 days and aggregates up to 8.43" (214mm) of snow.Ocean temperature
In Onset, the average seawater temperature in October is 60.4°F (15.8°C).Note: The enjoyment of swimming decreases for most when the surface water temperature is 60.4°F (15.8°C). Breathing control becomes increasingly challenging as temperatures descend below 69.8°F (21°C).
Daylight
The average length of the day in October in Onset is 11h and 4min.On the first day of the month, sunrise is at 6:40 am and sunset at 6:23 pm. On the last day of October, sunrise is at 7:14 am and sunset at 5:38 pm EDT.
Sunshine
The average sunshine in October in Onset, Massachusetts, is 6.5h.UV index
The average daily maximum UV index in October is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: In October, the maximum UV index of 3 suggests these recommendations:
Act with care - Obligation to protect against skin and eye damage is highlighted. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
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?
How many days does it rain in October?
When does it start snowing?
What is the ocean temperature in October?
How many hours of daylight does Onset have in October?
When are sunrise and sunset in October?
How long on average sun shines in October?
What is the UV index intensity in October?
Average temperature in October
Onset, MA
- Average high temperature in October: 60.1°F
The warmest month (with the highest average high temperature) is July (75.6°F).
The month with the lowest average high temperature is January (36.9°F).
- Average low temperature in October: 52.3°F
The month with the highest average low temperature is August (66.7°F).
The coldest month (with the lowest average low temperature) is January (27.7°F).
Average pressure in October
Onset, MA
- Average pressure in October: 30.01"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in October
Onset, MA
- Average wind speed in October: 11.8mph
The windiest month (with the highest average wind speed) is January (13.7mph).
The calmest month (with the lowest average wind speed) is August (8.7mph).
Average humidity in October
Onset, MA
- Average humidity in October: 77%
The months with the highest relative humidity are June and July (81%).
The months with the lowest relative humidity are March and November (74%).
Average rainfall in October
Onset, MA
- Average rainfall in October: 3.43"
The wettest month (with the highest rainfall) is December (3.58").
The driest month (with the least rainfall) is September (1.81").
Average rainfall days in October
Onset, MA
- Average rainfall days in October: 14.4 days
The month with the highest number of rainy days is July (16 days).
The month with the least rainy days is January (9 days).
Average snowfall in October
Onset, MA
- Average snowfall in October: 0.16"
The months with the highest snowfall are February and March (2.28").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in October
Onset, MA
- Average snowfall days in October: 0.1 days
The month with the highest number of snowfall days is January (6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average sea temperature in October
Onset, MA
- Average sea temperature in October: 60.4°F
The best month for swimming (with the highest average sea temperature) is August (68.4°F).
The coldest month (with the lowest average sea temperature) is February (38.2°F).
Average daylight in October /
Average sunshine in October
Onset, MA
- Average daylight in October: 11h and 1min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in October: 6h and 3min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).
Average sunshine days in October
Onset, MA
- Average sunshine days in October: 14.6 days
The month with the most sunshine days is November (16.3 days).
The month with the least sunshine days is April (12.5 days).
Average UV index in October
Onset, MA
- Average UV index in October: 3
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in October
Onset, MA
- Average cloud cover in October: 40
The month with the most cloud cover is March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in October
Onset, MA
- Average visibility in October: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Onset, Massachusetts, USA
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