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 start of October involves a temperature drop, moving from an enjoyable 63.5°F (17.5°C) in September to a frosty 49.5°F (9.7°C). Grand Isle, during the month of October, experiences an average low-temperature of 36°F (2.2°C).Humidity
The average relative humidity in October is 82%.Rainfall
In Grand Isle, in October, it is raining for 14.6 days, with typically 2.76" (70mm) of accumulated precipitation. In Grand Isle, during the entire year, the rain falls for 140.8 days and collects up to 30.12" (765mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. October is the first month it typically snows. Throughout October, in the average 3.3 snowfall days, it receives 1.14" (29mm) of snow. Throughout the year, there are 107.8 snowfall days, and 71.34" (1812mm) of snow is accumulated.Daylight
In October, the average length of the day is 10h and 51min.On the first day of October, sunrise is at 6:32 am and sunset at 6:11 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 5:16 pm EDT.
Sunshine
The average sunshine in October is 5.4h.UV index
The average daily maximum UV index in October is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: A daily high UV index of 2 in October leads to these guidelines:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Employ a wide-brim hat for potent defense against up to 50% of UV rays. 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 usual temperature for Grand Isle in October?
What is the average humidity in October?
How much does it rain in October?
When does it start to snow?
What is the average length of the day in October?
What time 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
Grand Isle, ME
- Average high temperature in October: 49.5°F
The warmest month (with the highest average high temperature) is July (74.3°F).
The month with the lowest average high temperature is January (18°F).
- Average low temperature in October: 36°F
The month with the highest average low temperature is July (53.6°F).
The coldest month (with the lowest average low temperature) is January (2.8°F).
Average pressure in October
Grand Isle, ME
- Average pressure in October: 29.97"Hg
The months with the highest atmospheric pressure are March, September and November (30.01"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in October
Grand Isle, ME
- Average wind speed in October: 7.5mph
The windiest months (with the highest average wind speed) are January and February (8.2mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).
Average humidity in October
Grand Isle, ME
- Average humidity in October: 82%
The month with the highest relative humidity is March (94%).
The month with the lowest relative humidity is May (76%).
Average rainfall in October
Grand Isle, ME
- Average rainfall in October: 2.76"
The wettest month (with the highest rainfall) is April (2.95").
The driest month (with the least rainfall) is February (1.97").
Average rainfall days in October
Grand Isle, ME
- Average rainfall days in October: 14.6 days
The month with the highest number of rainy days is July (17.1 days).
The months with the least rainy days are January and February (4.3 days).
Average snowfall in October
Grand Isle, ME
- Average snowfall in October: 1.14"
The month with the highest snowfall is January (14.92").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in October
Grand Isle, ME
- Average snowfall days in October: 3.3 days
The month with the highest number of snowfall days is January (21.3 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, ME
- Average daylight in October: 10h and 5min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in October: 5h and 2min
The month with the most sunshine is August (Average sunshine: 9h and 30min).
The month with the least sunshine is February (Average sunshine: 2h and 6min).
Average sunshine days in October
Grand Isle, ME
- Average sunshine days in October: 12.5 days
The month with the most sunshine days is September (14.5 days).
The month with the least sunshine days is April (7.9 days).
Average UV index in October
Grand Isle, ME
- Average UV index in October: 2
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in October
Grand Isle, ME
- Average cloud cover in October: 52
The month with the most cloud cover is February (Cloud cover 75).
The month with the least cloud cover is July (Cloud cover 42).
Average visibility in October
Grand Isle, ME
- Average visibility in October: 5mi
The months with the highest visibility are May, June, July, August, September, October and November (5mi).
The months with the lowest visibility are January, February, March, April and December (4mi).
Grand Isle, Maine, USA
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