October weather forecastShelter Island Heights, NY
October
Weather in October
October, like September, in Shelter Island Heights, New York, is another refreshing autumn month, with an average temperature fluctuating between 56.3°F (13.5°C) and 62.4°F (16.9°C).Temperature
October brings a slight decrease in temperature, down from a pleasant 70.7°F (21.5°C) in September to a comfortable 62.4°F (16.9°C). A steady low-temperature average of 56.3°F (13.5°C) is logged during October, reflecting a modest dip from daytime readings.Humidity
In Shelter Island Heights, the average relative humidity in October is 73%.Rainfall
In Shelter Island Heights, during October, the rain falls for 13.5 days and regularly aggregates up to 3.5" (89mm) of precipitation. In Shelter Island Heights, during the entire year, the rain falls for 154.1 days and collects up to 34.92" (887mm) of precipitation.Snowfall
In Shelter Island Heights, snow does not fall in April through October.Ocean temperature
In Shelter Island Heights, in October, the average water temperature is 62.8°F (17.1°C).Note: Most people do not find pleasure in swimming when the water temperature is 62.8°F (17.1°C). Breathing becomes increasingly difficult to manage as the water temperature drops from 69.8°F (21°C) to 59°F (15°C).
Daylight
In Shelter Island Heights, the average length of the day in October is 11h and 5min.On the first day of the month, sunrise is at 6:46 am and sunset at 6:30 pm. On the last day of October, sunrise is at 7:20 am and sunset at 5:45 pm EDT.
Sunshine
In October, the average sunshine is 6.1h.UV index
In October, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: In October, the maximum UV index of 4 translates into these guidelines:
Exercise prevention - Warding off sunburn is urged. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Shelter Island Heights, NY
- Average high temperature in October: 62.4°F
The warmest month (with the highest average high temperature) is August (75.9°F).
The month with the lowest average high temperature is January (38.8°F).
- Average low temperature in October: 56.3°F
The month with the highest average low temperature is August (71.2°F).
The coldest month (with the lowest average low temperature) is January (31.3°F).
Average pressure in October
Shelter Island Heights, NY
- Average pressure in October: 30.01"Hg
The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in October
Shelter Island Heights, NY
- Average wind speed in October: 14.5mph
The windiest month (with the highest average wind speed) is January (16mph).
The calmest month (with the lowest average wind speed) is July (10.4mph).
Average humidity in October
Shelter Island Heights, NY
- Average humidity in October: 73%
The months with the highest relative humidity are May and June (81%).
The month with the lowest relative humidity is November (72%).
Average rainfall in October
Shelter Island Heights, NY
- Average rainfall in October: 3.5"
The wettest month (with the highest rainfall) is December (3.82").
The driest month (with the least rainfall) is September (2.17").
Average rainfall days in October
Shelter Island Heights, NY
- Average rainfall days in October: 13.5 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (9.1 days).
Average snowfall in October
Shelter Island Heights, NY
- Average snowfall in October: 0"
The month with the highest snowfall is March (2.36").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in October
Shelter Island Heights, NY
- Average snowfall days in October: 0 days
The month with the highest number of snowfall days is January (4.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in October
Shelter Island Heights, NY
- Average sea temperature in October: 62.8°F
The best month for swimming (with the highest average sea temperature) is August (72.1°F).
The coldest month (with the lowest average sea temperature) is February (38.8°F).
Average daylight in October /
Average sunshine in October
Shelter Island Heights, NY
- Average daylight in October: 11h and 6min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in October: 6h and 6min
The months with the most sunshine are July and August (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 4h and 36min).
Average sunshine days in October
Shelter Island Heights, NY
- Average sunshine days in October: 15.3 days
The month with the most sunshine days is November (16.8 days).
The month with the least sunshine days is February (12.8 days).
Average UV index in October
Shelter Island Heights, NY
- Average UV index in October: 4
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March and December (UV index 2).
Average cloud cover in October
Shelter Island Heights, NY
- Average cloud cover in October: 41
The month with the most cloud cover is December (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in October
Shelter Island Heights, NY
- 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).
