Islip Terrace
New York, USA
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Islip Terrace, NY

January, like December, in Islip Terrace, New York, is a wintry winter month, with temperature in the range of an average low of 30°F (-1.1°C) and an average high of 37.9°F (3.3°C). With an average high-temperature of 37.9°F (3.3°C) and an average low-temperature of 30°F (-1.1°C), January is the coldest month. Weather in January »

February, the last month of the winter, in Islip Terrace, is another cold month, with average temperature ranging between max 39.7°F (4.3°C) and min 31.1°F (-0.5°C). In February, the average high-temperature is relatively the same as in January - a still wintry 39.7°F (4.3°C). Weather in February »

The first month of the spring, March, is a chilly month in Islip Terrace, New York, with temperature in the range of an average high of 44.2°F (6.8°C) and an average low of 36.1°F (2.3°C). In March, the average high-temperature is practically the same as in February - a frosty 44.2°F (6.8°C). Weather in March »

April is a cool spring month in Islip Terrace, New York, with average temperature ranging between min 45.1°F (7.3°C) and max 52.9°F (11.6°C). In April, the average high-temperature marginally rises, from a chilly 44.2°F (6.8°C) in March, to a fresh 52.9°F (11.6°C). Weather in April »

May, the last month of the spring, in Islip Terrace, is a comfortable month, with average temperature varying between 62.2°F (16.8°C) and 54.5°F (12.5°C). In May, the average high-temperature increases, from a cool 52.9°F (11.6°C) in April, to a comfortable 62.2°F (16.8°C). Weather in May »

The first month of the summer, June, is an agreeable month in Islip Terrace, New York, with average temperature fluctuating between 71.4°F (21.9°C) and 63.9°F (17.7°C). In Islip Terrace, the average high-temperature increases, from an enjoyable 62.2°F (16.8°C) in May, to a pleasant 71.4°F (21.9°C). Weather in June »

July is a warm summer month in Islip Terrace, New York, with average temperature ranging between max 79°F (26.1°C) and min 71.8°F (22.1°C). July is the warmest month, with an average high-temperature of 79°F (26.1°C) and an average low-temperature of 71.8°F (22.1°C). Weather in July »

August, the last month of the summer, in Islip Terrace, is also a moderately hot month, with average temperature varying between 78.4°F (25.8°C) and 72°F (22.2°C). In August, the average high-temperature is almost the same as in July - a still moderately hot 78.4°F (25.8°C). Weather in August »

The first month of the autumn, September, is also an agreeable month in Islip Terrace, New York, with average temperature fluctuating between 65.3°F (18.5°C) and 72.1°F (22.3°C). In September, the average high-temperature slightly decreases, from a warm 78.4°F (25.8°C) in August, to an agreeable 72.1°F (22.3°C). Weather in September »

October, the same as September, is another comfortable autumn month in Islip Terrace, New York, with average temperature varying between 62.4°F (16.9°C) and 55.8°F (13.2°C). In Islip Terrace, the average high-temperature drops, from a pleasant 72.1°F (22.3°C) in September, to a comfortable 62.4°F (16.9°C). Weather in October »

November, the last month of the autumn, in Islip Terrace, is another cool month, with average temperature fluctuating between 44.2°F (6.8°C) and 52°F (11.1°C). In Islip Terrace, the average high-temperature drops, from an enjoyable 62.4°F (16.9°C) in October, to a fresh 52°F (11.1°C). Weather in November »

The first month of the winter, December, is also a frosty month in Islip Terrace, New York, with temperature in the range of an average low of 36.9°F (2.7°C) and an average high of 43.9°F (6.6°C). In December, the average high-temperature slightly decreases, from a cool 52°F (11.1°C) in November, to a chilly 43.9°F (6.6°C). Weather in December »

What is the coldest month in Islip Terrace?

The coldest month is January, with an average high-temperature of 37.9°F (3.3°C) and an average low-temperature of 30°F (-1.1°C).

How much does it rain in Islip Terrace?

Throughout the year, there are 153.2 rainfall days, and 34.45" (875mm) of precipitation is accumulated.

What is the driest month in Islip Terrace?

January is the month with the least rainfall. Rain falls for 7.6 days and accumulates 2.05" (52mm) of precipitation.

When does it snow in Islip Terrace?

January through March, October through December are months with snowfall.

How many days does it snow in Islip Terrace?

Throughout the year, there are 13 snowfall days, and 5.87" (149mm) of snow is accumulated.

What is the month with the lowest UV index in Islip Terrace?

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

What is the month with the least sunshine in Islip Terrace?

With an average of 4.8h of sunshine, February has the least sunshine of the year.

What is the snowiest month in Islip Terrace?

March is the month with the most snowfall. Snow falls for 2.6 days and accumulates 1.97" (50mm) of snow.

When it does not snow in Islip Terrace?

April through September are months without snowfall in Islip Terrace, New York.

What are the most humid months in Islip Terrace?

May and June, with an average relative humidity of 77%, are most humid months.

When are the longest days in Islip Terrace?

With an average of 15.1h of daylight, June has the longest days of the year.

What are the months with the highest UV index in Islip Terrace?

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

What is the warmest month in Islip Terrace?

July is the warmest month, with an average high-temperature of 79°F (26.1°C) and an average low-temperature of 71.8°F (22.1°C).

What is the wettest month in Islip Terrace?

July is the month with the most rainfall in Islip Terrace, New York. Rain falls for 17.9 days and accumulates 3.86" (98mm) of precipitation.

What month has the most sunshine in Islip Terrace?

The month with the most sunshine in Islip Terrace, New York, is July, with an average of 10.8h of sunshine.

What is the least humid month in Islip Terrace?

With an average relative humidity of 71%, November is the least humid month in Islip Terrace, New York.

What is the month with the shortest days in Islip Terrace?

December has the shortest days of the year in Islip Terrace, with an average of 9.3h of daylight.
Average temperature - Islip Terrace, NY
Average humidity - Islip Terrace, NY
Average rainfall - Islip Terrace, NY
Average rainfall days - Islip Terrace, NY

The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is January (7.6 days).

Average snowfall - Islip Terrace, NY
Average snowfall days - Islip Terrace, NY

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

Average daylight / Average sunshine - Islip Terrace, 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).

The month with the most sunshine is July (Average sunshine: 10.8h).
The month with the least sunshine is February (Average sunshine: 4.8h).

Average UV index - Islip Terrace, NY