October weather forecastDeer Isle, ME
October
Weather in October
October establishes fall in its entire splendor in Deer Isle, Maine. Average temperatures take a dip to the fifties, about 54.9°F (12.7°C), confirming fall's firm grip. October is characterized by its colorful foliage, thus offering a fantastic destination for leaf-peeping. It's also a period when the fluctuating weather conditions necessitate layering of clothes. Furthermore, shorter days signal the incoming winter.Temperature
The beginning of October marks a decrease in the average high-temperature, transitioning from an enjoyable 63.9°F (17.7°C) in September to a fresh 54.9°F (12.7°C). A minor drop in temperature is observed from daytime highs during the nights of October, averaging a frosty 47.1°F (8.4°C).Humidity
In Deer Isle, Maine, the average relative humidity in October is 79%.Rainfall
October is the month with the most rainfall in Deer Isle. Rain falls for 10.6 days and accumulates 2.09" (53mm) 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 0.08" (2mm) of snow. Throughout the year, there are 29.2 snowfall days, and 9.65" (245mm) of snow is accumulated.Ocean temperature
In October, the average ocean temperature is 53.8°F (12.1°C).Note: Navigating the 53.8°F (12.1°C) at 55.4°F (13°C) is no joy, and temperatures less than 50°F (10°C) can threaten breathing and cause a chilling shock, gauging personal stamina.
Daylight
In Deer Isle, the average length of the day in October is 10h and 59min.On the first day of the month, sunrise is at 6:33 am and sunset at 6:14 pm. On the last day of October, sunrise is at 7:11 am and sunset at 5:25 pm EDT.
Sunshine
In Deer Isle, the average sunshine in October is 6.4h.UV index
In October, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for average individuals.Note: In October, a daily maximum UV index of 3 leads to the following instructions:
Take necessary precautions - Protection from skin and eye injury is mandatory. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Deer Isle, ME
- Average high temperature in October: 54.9°F
The warmest month (with the highest average high temperature) is August (68.9°F).
The month with the lowest average high temperature is January (31.5°F).
- Average low temperature in October: 47.1°F
The month with the highest average low temperature is August (59.9°F).
The coldest month (with the lowest average low temperature) is January (21°F).
Average pressure in October
Deer Isle, ME
- Average pressure in October: 29.99"Hg
The month with the highest atmospheric pressure is September (30.04"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in October
Deer Isle, ME
- Average wind speed in October: 11.8mph
The windiest month (with the highest average wind speed) is January (14.4mph).
The calmest months (with the lowest average wind speed) are July and August (7.8mph).
Average humidity in October
Deer Isle, ME
- Average humidity in October: 79%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is November (76%).
Average rainfall in October
Deer Isle, ME
- Average rainfall in October: 2.09"
The wettest month (with the highest rainfall) is October (2.09").
The driest month (with the least rainfall) is September (0.91").
Average rainfall days in October
Deer Isle, ME
- Average rainfall days in October: 10.6 days
The month with the highest number of rainy days is July (12.8 days).
The month with the least rainy days is February (5.3 days).
Average snowfall in October
Deer Isle, ME
- Average snowfall in October: 0.08"
The month with the highest snowfall is February (2.32").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in October
Deer Isle, ME
- Average snowfall days in October: 0.1 days
The month with the highest number of snowfall days is January (7.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average sea temperature in October
Deer Isle, ME
- Average sea temperature in October: 53.8°F
The best month for swimming (with the highest average sea temperature) is August (58.6°F).
The coldest month (with the lowest average sea temperature) is March (38.2°F).
Average daylight in October /
Average sunshine in October
Deer Isle, ME
- 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: 6h and 24min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 4h and 30min).
Average sunshine days in October
Deer Isle, ME
- Average sunshine days in October: 17.8 days
The month with the most sunshine days is September (19.9 days).
The month with the least sunshine days is July (15.4 days).
Average UV index in October
Deer Isle, ME
- Average UV index in October: 3
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in October
Deer Isle, ME
- Average cloud cover in October: 43
The months with the most cloud cover are February and March (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in October
Deer Isle, ME
- 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).





