Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
With the onset of May, Shelter Island experiences a subtle temperature shift, with the average high-temperature moving from a cool 50°F (10°C) in April to a mild 58.6°F (14.8°C). During the nights of May, Shelter Island records an average low-temperature of 52.7°F (11.5°C), reflecting a modest decrease from daytime highs.Humidity
The months with the highest humidity in Shelter Island are May and June, with an average relative humidity of 81%.Rainfall
In May, in Shelter Island, New York, the rain falls for 15.3 days. Throughout May, 2.91" (74mm) of precipitation is accumulated. In Shelter Island, during the entire year, the rain falls for 154.1 days and collects up to 34.92" (887mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
In Shelter Island, the average length of the day in May is 14h and 30min.On the first day of the month, sunrise is at 5:46 am and sunset at 7:46 pm. On the last day of May, in Shelter Island, sunrise is at 5:19 am and sunset at 8:15 pm EDT.
Sunshine
The average sunshine in May in Shelter Island, New York, is 8.6h.UV index
In Shelter Island, the average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: In May, a regular UV index of 5 translates into these guidelines:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Shelter Island in May?
What is the most humid month in Shelter Island?
What is the average humidity in May in Shelter Island?
How much does it rain in Shelter Island in May?
When it does not snow in Shelter Island?
What is the average length of the day in May in Shelter Island?
What time are sunrise and sunset in May in Shelter Island?
How long on average sun shines in May in Shelter Island?
What is the UV index intensity in May in Shelter Island?
Average temperature in May
Shelter Island, NY
- Average high temperature in May: 58.6°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 May: 52.7°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 May
Shelter Island, NY
- Average pressure in May: 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 May
Shelter Island, NY
- Average wind speed in May: 12mph
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 May
Shelter Island, NY
- Average humidity in May: 81%
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 May
Shelter Island, NY
- Average rainfall in May: 2.91"
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 May
Shelter Island, NY
- Average rainfall days in May: 15.3 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 May
Shelter Island, NY
- Average snowfall in May: 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 May
Shelter Island, NY
- Average snowfall days in May: 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 daylight in May /
Average sunshine in May
Shelter Island, NY
- Average daylight in May: 14h and 3min
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 May: 8h and 4min
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 May
Shelter Island, NY
- Average sunshine days in May: 14.8 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 May
Shelter Island, NY
- Average UV index in May: 5
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 May
Shelter Island, NY
- Average cloud cover in May: 43
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 May
Shelter Island, NY
- Average visibility in May: 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).
Shelter Island, New York, USA
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