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
During the transition into October, Grand Isle observes a decrease in the average high-temperature, falling from an agreeable 68.9°F (20.5°C) in September to a mild 55.4°F (13°C). In October, Grand Isle's temperature tends to fall to an average low of 41.9°F (5.5°C) during the night.Humidity
In October, the average relative humidity in Grand Isle is 80%.Rainfall
In Grand Isle, during October, the rain falls for 16.4 days and regularly aggregates up to 2.68" (68mm) of precipitation. In Grand Isle, during the entire year, the rain falls for 176.9 days and collects up to 29.88" (759mm) 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 1.5 snowfall days, it receives 0.16" (4mm) of snow. In Grand Isle, during the entire year, snow falls for 81.9 days and aggregates up to 36.77" (934mm) of snow.Daylight
The average length of the day in October is 10h and 58min.On the first day of October in Grand Isle, sunrise is at 6:51 am and sunset at 6:33 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 5:42 pm EDT.
Sunshine
The average sunshine in October is 5.4h.UV index
In October, the average daily maximum UV index in Grand Isle, Vermont, is 2. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for the average person.Note: In October, the UV index of 2 transforms into the following advice:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average October temperature in Grand Isle?
What is the average humidity in October in Grand Isle?
How many days does it rain in October in Grand Isle?
When does it start snowing in Grand Isle?
How many hours of daylight does Grand Isle have in October?
What time are sunrise and sunset in October in Grand Isle?
How long on average sun shines in October in Grand Isle?
How high is the UV index in October in Grand Isle?
Average temperature in October
Grand Isle, VT
- Average high temperature in October: 55.4°F
The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (24.3°F).
- Average low temperature in October: 41.9°F
The month with the highest average low temperature is July (59.4°F).
The coldest month (with the lowest average low temperature) is January (12°F).
Average pressure in October
Grand Isle, VT
- Average pressure in October: 30"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in October
Grand Isle, VT
- Average wind speed in October: 7.1mph
The windiest month (with the highest average wind speed) is April (8mph).
The calmest months (with the lowest average wind speed) are July and August (6.1mph).
Average humidity in October
Grand Isle, VT
- Average humidity in October: 80%
The months with the highest relative humidity are January and February (87%).
The months with the lowest relative humidity are April and May (76%).
Average rainfall in October
Grand Isle, VT
- Average rainfall in October: 2.68"
The wettest month (with the highest rainfall) is June (3.23").
The driest month (with the least rainfall) is September (1.81").
Average rainfall days in October
Grand Isle, VT
- Average rainfall days in October: 16.4 days
The month with the highest number of rainy days is June (18.8 days).
The month with the least rainy days is January (9.4 days).
Average snowfall in October
Grand Isle, VT
- Average snowfall in October: 0.16"
The month with the highest snowfall is February (9.49").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in October
Grand Isle, VT
- Average snowfall days in October: 1.5 days
The month with the highest number of snowfall days is January (19.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in October /
Average sunshine in October
Grand Isle, VT
- Average daylight in October: 11h and 0min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in October: 5h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 3h and 24min).
Average sunshine days in October
Grand Isle, VT
- Average sunshine days in October: 11.8 days
The month with the most sunshine days is September (15.3 days).
The month with the least sunshine days is February (6.5 days).
Average UV index in October
Grand Isle, VT
- Average UV index in October: 2
The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in October
Grand Isle, VT
- Average cloud cover in October: 48
The month with the most cloud cover is February (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in October
Grand Isle, VT
- Average visibility in October: 6mi
The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January and February (4mi).
Grand Isle, Vermont, USA
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