Shelter Island
New York, USA
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Shelter Island, NY

January, like December, in Shelter Island, New York, is another cold winter month, with temperature in the range of an average low of 31.3°F (-0.4°C) and an average high of 38.8°F (3.8°C). With an average high-temperature of 38.8°F (3.8°C) and an average low-temperature of 31.3°F (-0.4°C), January is the coldest month. Weather in January »

The last month of the winter, February, is another cold month in Shelter Island, New York, with average temperature fluctuating between 31.5°F (-0.3°C) and 39.6°F (4.2°C). In Shelter Island, the average high-temperature is relatively the same as in January - a still cold 39.6°F (4.2°C). Weather in February »

The first month of the spring, March, is a frosty month in Shelter Island, New York, with temperature in the range of an average high of 43°F (6.1°C) and an average low of 36.1°F (2.3°C). In March, the average high-temperature is almost the same as in February - a frosty 43°F (6.1°C). Weather in March »

April is a cool spring month in Shelter Island, New York, with average temperature ranging between min 44.2°F (6.8°C) and max 50°F (10°C). In Shelter Island, New York, the average high-temperature in April marginally rises, from a chilly 43°F (6.1°C) in March, to a fresh 50°F (10°C). Weather in April »

May, the last month of the spring, in Shelter Island, is a mild month, with average temperature ranging between max 58.6°F (14.8°C) and min 52.7°F (11.5°C). In Shelter Island, the average high-temperature in May marginally rises, from a cool 50°F (10°C) in April, to a moderate 58.6°F (14.8°C). Weather in May »

June, the first month of the summer, in Shelter Island, is an enjoyable month, with temperature in the range of an average high of 67.6°F (19.8°C) and an average low of 62.6°F (17°C). In June, the average high-temperature increases, from a moderate 58.6°F (14.8°C) in May, to a comfortable 67.6°F (19.8°C). Weather in June »

July is a moderately hot summer month in Shelter Island, New York, with average temperature varying between 70.3°F (21.3°C) and 75.7°F (24.3°C). In July, the average high-temperature slightly increases, from an enjoyable 67.6°F (19.8°C) in June, to a moderately hot 75.7°F (24.3°C). Weather in July »

August, the last month of the summer, in Shelter Island, is also a moderately hot month, with average temperature varying between 75.9°F (24.4°C) and 71.2°F (21.8°C). August is the warmest month, with an average high-temperature of 75.9°F (24.4°C) and an average low-temperature of 71.2°F (21.8°C). Weather in August »

The first month of the autumn, September, is also an agreeable month in Shelter Island, New York, with average temperature varying between 65.1°F (18.4°C) and 70.7°F (21.5°C). In Shelter Island, the average high-temperature in September is essentially the same as in August - an agreeable 70.7°F (21.5°C). Weather in September »

October, like September, in Shelter Island, New York, is another enjoyable autumn month, with average temperature ranging between max 62.4°F (16.9°C) and min 56.3°F (13.5°C). In Shelter Island, New York, the average high-temperature in October slightly decreases, from an agreeable 70.7°F (21.5°C) in September, to an enjoyable 62.4°F (16.9°C). Weather in October »

November, the last month of the autumn, in Shelter Island, is another cool month, with average temperature fluctuating between 45.5°F (7.5°C) and 52.7°F (11.5°C). In Shelter Island, the average high-temperature in November drops, from a comfortable 62.4°F (16.9°C) in October, to a fresh 52.7°F (11.5°C). Weather in November »

The first month of the winter, December, is still a chilly month in Shelter Island, New York, with average temperature varying between 45°F (7.2°C) and 37.9°F (3.3°C). In December, the average high-temperature slightly decreases, from a cool 52.7°F (11.5°C) in November, to a chilly 45°F (7.2°C). Weather in December »

What is the coldest month in Shelter Island?

January is the coldest month, with an average high-temperature of 38.8°F (3.8°C) and an average low-temperature of 31.3°F (-0.4°C).

How much does it rain in Shelter Island?

In Shelter Island, New York, during the entire year, the rain falls for 154.1 days and collects up to 34.92" (887mm) of precipitation.

When does it snow in Shelter Island?

January through March, November and December are months with snowfall in Shelter Island.

How much does it snow in Shelter Island?

Throughout the year, there are 13.9 snowfall days, and 6.61" (168mm) of snow is accumulated.

What is the month with the lowest UV index in Shelter Island?

Months with the lowest UV index are January through March and December, with an average maximum UV index of 2.

What is the snowiest month in Shelter Island?

The month with the most snowfall in Shelter Island, New York, is March when snow falls for 3 days and typically aggregates up to 2.36" (60mm) of snow.

When it does not snow in Shelter Island?

In Shelter Island, New York, snow does not fall in April through October.

What are the most humid months in Shelter Island?

Months with the highest humidity in Shelter Island, New York, are May and June, with an average relative humidity of 81%.

When are the longest days in Shelter Island?

The month with the longest days is June, with an average of 15.1h of daylight.

When is the highest UV index in Shelter Island?

Months with the highest UV index are June through August, with an average maximum UV index of 6.

What is the month with the most sunshine in Shelter Island?

Months with the most sunshine in Shelter Island are July and August, with an average of 10.6h of sunshine.

What is the warmest month in Shelter Island?

The warmest month in Shelter Island is August, with an average high-temperature of 75.9°F (24.4°C) and an average low-temperature of 71.2°F (21.8°C).

What is the driest month in Shelter Island?

The month with the least rainfall is September when the rain falls for 12.6 days and typically collects 2.17" (55mm) of precipitation.

What is the least humid month in Shelter Island?

November is the least humid month in Shelter Island, with an average relative humidity of 72%.

What is the rainiest month in Shelter Island?

December is the month with the most rainfall in Shelter Island, New York. Rain falls for 12.8 days and accumulates 3.82" (97mm) of precipitation.

What is the month with the shortest days in Shelter Island?

The month with the shortest days in Shelter Island is December, with an average of 9.3h of daylight.

What is the month with the least sunshine in Shelter Island?

With an average of 4.6h of sunshine, December has the least sunshine of the year in Shelter Island, New York.
Average temperature - Shelter Island, NY
Average humidity - Shelter Island, NY
Average rainfall - Shelter Island, NY

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 - Shelter Island, NY

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 - Shelter Island, NY

The month with the highest snowfall is March (2.36").
Months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days - Shelter Island, NY

The month with the highest number of snowfall days is January (4.2 days).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight / Average sunshine - Shelter Island, NY

The month with the longest days is June (Average daylight: 15.1h).
The month with the shortest days is December (Average daylight: 9.3h).

Months with the most sunshine are July and August (Average sunshine: 10.6h).
The month with the least sunshine is December (Average sunshine: 4.6h).

Average UV index - Shelter Island, NY