Roslyn
New York, USA
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Roslyn, NY

January, like December, in Roslyn, New York, is a wintry winter month, with average temperature varying between 27.3°F (-2.6°C) and 36.5°F (2.5°C). January is the coldest month, with an average high-temperature of 36.5°F (2.5°C) and an average low-temperature of 27.3°F (-2.6°C). Weather in January »

The last month of the winter, February, is also a wintry month in Roslyn, New York, with average temperature varying between 39°F (3.9°C) and 28.8°F (-1.8°C). In February, the average high-temperature is practically the same as in January - a still cold 39°F (3.9°C). Weather in February »

The first month of the spring, March, is a chilly month in Roslyn, New York, with temperature in the range of an average high of 45.1°F (7.3°C) and an average low of 35.2°F (1.8°C). In March, the average high-temperature slightly increases, from a cold 39°F (3.9°C) in February, to a frosty 45.1°F (7.3°C). Weather in March »

April is a fresh spring month in Roslyn, New York, with average temperature ranging between max 55°F (12.8°C) and min 44.2°F (6.8°C). In Roslyn, the average high-temperature in April rises, from a frosty 45.1°F (7.3°C) in March, to a fresh 55°F (12.8°C). Weather in April »

May, the last month of the spring, in Roslyn, is an enjoyable month, with average temperature ranging between min 54.1°F (12.3°C) and max 65.3°F (18.5°C). In Roslyn, the average high-temperature increases, from a fresh 55°F (12.8°C) in April, to a comfortable 65.3°F (18.5°C). Weather in May »

June, the first month of the summer, in Roslyn, is a moderately hot month, with average temperature varying between 74.5°F (23.6°C) and 63.1°F (17.3°C). In June, the average high-temperature rises, from a comfortable 65.3°F (18.5°C) in May, to a warm 74.5°F (23.6°C). Weather in June »

July, like June, in Roslyn, New York, is a moderately hot summer month, with average temperature varying between 70.3°F (21.3°C) and 81.5°F (27.5°C). With an average high-temperature of 81.5°F (27.5°C) and an average low-temperature of 70.3°F (21.3°C), July is the warmest month. The average heat index is calculated to a tropical 86.2°F (30.1°C). Weather in July »

The last month of the summer, August, is also a moderately hot month in Roslyn, New York, with average temperature ranging between min 70.3°F (21.3°C) and max 80.4°F (26.9°C). In Roslyn, the average high-temperature is relatively the same as in July - a still warm 80.4°F (26.9°C). Weather in August »

The first month of the autumn, September, is also a moderately hot month in Roslyn, New York, with average temperature fluctuating between 63.5°F (17.5°C) and 73.4°F (23°C). In September, the average high-temperature slightly decreases, from a moderately hot 80.4°F (26.9°C) in August, to a still warm 73.4°F (23°C). Weather in September »

October, the same as September, is another enjoyable autumn month in Roslyn, New York, with average temperature ranging between max 63°F (17.2°C) and min 53.4°F (11.9°C). In Roslyn, the average high-temperature decreases, from a moderately hot 73.4°F (23°C) in September, to a comfortable 63°F (17.2°C). Weather in October »

November, the last month of the autumn, in Roslyn, is also a fresh month, with average temperature varying between 42.3°F (5.7°C) and 51.1°F (10.6°C). In November, the average high-temperature drops, from an enjoyable 63°F (17.2°C) in October, to a cool 51.1°F (10.6°C). Weather in November »

The first month of the winter, December, is still a cold month in Roslyn, New York, with average temperature varying between 34.7°F (1.5°C) and 42.4°F (5.8°C). In December, the average high-temperature marginally drops, from a fresh 51.1°F (10.6°C) in November, to a cold 42.4°F (5.8°C). Weather in December »

What is the coldest month in Roslyn?

The coldest month is January, with an average high-temperature of 36.5°F (2.5°C) and an average low-temperature of 27.3°F (-2.6°C).

How much does it rain in Roslyn?

In Roslyn, during the entire year, the rain falls for 165.9 days and collects up to 37.56" (954mm) of precipitation.

When does it snow in Roslyn?

January through April, November and December are months with snowfall.

How many days does it snow in Roslyn?

In Roslyn, New York, during the entire year, snow falls for 22.2 days, and aggregates up to 7.24" (184mm) of snow.

What are the months with the lowest UV index in Roslyn?

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

What is the most humid month in Roslyn?

February, May and December, with an average relative humidity of 75%, are most humid months in Roslyn.

What is the month with the coldest ocean in Roslyn?

February is the month with the coldest seawater in Roslyn, New York, with an average ocean temperature of 39.9°F (4.4°C).

What is the month with the least sunshine in Roslyn?

February has the least sunshine of the year in Roslyn, with an average of 4.8h of sunshine.

What is the snowiest month in Roslyn?

The month with the most snowfall in Roslyn, New York, is March when snow falls for 4.7 days and typically aggregates up to 2.01" (51mm) of snow.

When it does not snow in Roslyn?

May through October are months without snowfall in Roslyn, New York.

When are the longest days in Roslyn?

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

What is the month with the highest UV index in Roslyn?

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

What is the warmest month in Roslyn?

July is the warmest month in Roslyn, with an average high-temperature of 81.5°F (27.5°C) and an average low-temperature of 70.3°F (21.3°C).

What month has the most sunshine in Roslyn?

The month with the most sunshine in Roslyn is July, with an average of 10.7h of sunshine.

What are the least humid months in Roslyn?

August and November, with an average relative humidity of 71%, are the least humid months in Roslyn.

What is the month with the warmest ocean in Roslyn?

August is the month with the warmest seawater in Roslyn, New York, with an average ocean temperature of 74.1°F (23.4°C).

What is the driest month in Roslyn?

September is the month with the least rainfall in Roslyn. Rain falls for 12.9 days and accumulates 2.4" (61mm) of precipitation.

What is the rainiest month in Roslyn?

The month with the most rainfall in Roslyn is December when the rain falls for 12.9 days and typically aggregates up to 4.06" (103mm) of precipitation.

What is the month with the shortest days in Roslyn?

With an average of 9.3h of daylight, December has the shortest days of the year in Roslyn, New York.
Average temperature - Roslyn, NY
Average humidity - Roslyn, NY

Months with the highest relative humidity are February, May and December (75%).
Months with the lowest relative humidity are August and November (71%).

Average rainfall - Roslyn, NY

The wettest month (with the highest rainfall) is December (4.06").
The driest month (with the lowest rainfall) is September (2.4").

Average rainfall days - Roslyn, NY

The month with the highest number of rainy days is July (17.9 days).
The month with the lowest number of rainy days is January (9.3 days).

Average snowfall - Roslyn, NY
Average snowfall days - Roslyn, NY

The month with the highest number of snowfall days is January (6.8 days).
Months with the lowest number of snowfall days are June, July, August, September and October (0 days).

Average sea temperature - Roslyn, NY

The best month for swimming (with the highest average sea temperature) is August (74.1°F).
The coldest month (with the lowest average sea temperature) is February (39.9°F).

Average daylight / Average sunshine - Roslyn, NY
Average UV index - Roslyn, NY