Monthly weather forecast and climate
Shelter Island Heights, NY

Weather in January

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

Weather in February

February, the last month of the winter, in Shelter Island Heights, is another cold month, with average temperature ranging between max 39.6°F (4.2°C) and min 31.5°F (-0.3°C). In February, the average high-temperature is practically the same as in January - a still cold 39.6°F (4.2°C). Weather in February »

Weather in March

March, the first month of the spring, in Shelter Island Heights, is a frosty month, with average temperature fluctuating between 43°F (6.1°C) and 36.1°F (2.3°C). In March, the average high-temperature is essentially the same as in February - a frosty 43°F (6.1°C). Weather in March »

Weather in April

April is a cool spring month in Shelter Island Heights, New York, with temperature in the range of an average low of 44.2°F (6.8°C) and an average high of 50°F (10°C). In Shelter Island Heights, the average high-temperature marginally rises, from a frosty 43°F (6.1°C) in March, to a cool 50°F (10°C). Weather in April »

Weather in May

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

Weather in June

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

Weather in July

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

Weather in August

August, the last month of the summer, in Shelter Island Heights, is another warm month, with average temperature ranging between max 75.9°F (24.4°C) and min 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 »

Weather in September

September, the first month of the autumn, in Shelter Island Heights, is still a pleasant month, with average temperature varying between 70.7°F (21.5°C) and 65.1°F (18.4°C). In September, the average high-temperature is almost the same as in August - a pleasant 70.7°F (21.5°C). Weather in September »

Weather in October

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

Weather in November

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

Weather in December

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

What is the coldest month in Shelter Island Heights?

The coldest month is January, 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 many days does it rain in Shelter Island Heights?

Throughout the year, there are 154.1 rainfall days, and 34.92" (887mm) of precipitation is accumulated.

When does it snow in Shelter Island Heights?

Months with snowfall in Shelter Island Heights, New York, are January through March, November and December.

How much does it snow in Shelter Island Heights?

In Shelter Island Heights, New York, during the entire year, snow falls for 13.9 days, and aggregates up to 6.61" (168mm) of snow.

What are the months with the lowest UV index in Shelter Island Heights?

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

What month is the ocean coldest in Shelter Island Heights?

The month with the coldest seawater is February, with an average ocean temperature of 38.8°F (3.8°C).

What is the snowiest month in Shelter Island Heights?

The month with the most snowfall in Shelter Island Heights 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 Heights?

In Shelter Island Heights snow does not fall in April through October.

What are the most humid months in Shelter Island Heights?

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

When are the longest days in Shelter Island Heights?

With an average of 15.1h of daylight, June has the longest days of the year in Shelter Island Heights.

What is the month with the highest UV index in Shelter Island Heights?

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

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

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

What is the warmest month in Shelter Island Heights?

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

When is the ocean warmest in Shelter Island Heights?

The month with the warmest seawater is August, with an average ocean temperature of 72.1°F (22.3°C).

What is the driest month in Shelter Island Heights?

September is the month with the least rainfall in Shelter Island Heights, New York. Rain falls for 12.6 days and accumulates 2.17" (55mm) of precipitation.

What is the least humid month in Shelter Island Heights?

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

What is the wettest month in Shelter Island Heights?

The month with the most rainfall is December when the rain falls for 12.8 days and typically aggregates up to 3.82" (97mm) of precipitation.

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

With an average of 9.3h of daylight, December has the shortest days of the year in Shelter Island Heights, New York.

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

With an average of 4.6h of sunshine, December has the least sunshine of the year.

Average temperature
Shelter Island Heights, NY

Average temperature - Shelter Island Heights, NY

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).

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).

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Average pressure
Shelter Island Heights, NY

Average pressure - Shelter Island Heights, NY

The month with the highest atmospheric pressure is November (30.08").
The month with the lowest atmospheric pressure is June (29.93").

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Average wind speed
Shelter Island Heights, NY

Average wind speed - Shelter Island Heights, NY

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).

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Average humidity
Shelter Island Heights, NY

Average humidity - Shelter Island Heights, NY

Months with the highest relative humidity are May and June (81%).
The month with the lowest relative humidity is November (72%).

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Average rainfall
Shelter Island Heights, NY

Average rainfall - Shelter Island Heights, NY

The wettest month (with the highest rainfall) is December (3.82").
The driest month (with the least rainfall) is September (2.17").

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Average rainfall days
Shelter Island Heights, NY

Average rainfall days - Shelter Island Heights, 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).

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Average snowfall
Shelter Island Heights, NY

Average snowfall - Shelter Island Heights, 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").

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Average snowfall days
Shelter Island Heights, NY

Average snowfall days - Shelter Island Heights, 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).

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Average sea temperature
Shelter Island Heights, NY

Average sea temperature - Shelter Island Heights, NY

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).

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Average daylight / Average sunshine
Shelter Island Heights, NY

Average daylight / Average sunshine - Shelter Island Heights, 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).

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Average sunshine days
Shelter Island Heights, NY

Average sunshine days - Shelter Island Heights, NY

The month with the most sunshine days is November (16.8 days).
The month with the least sunshine days is February (12.8 days).

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Average UV index
Shelter Island Heights, NY

Average UV index - Shelter Island Heights, NY

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February, March and December (UV index 2).

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Average visibility
Shelter Island Heights, NY

Average visibility - Shelter Island Heights, NY

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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