Monthly weather forecast and climate
Yaphank, NY

January, the same as December, is a wintry winter month in Yaphank, New York, with average temperature fluctuating between 30.6°F (-0.8°C) and 38.7°F (3.7°C). With an average high-temperature of 38.7°F (3.7°C) and an average low-temperature of 30.6°F (-0.8°C), January is the coldest month. Weather in January »

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

March, the first month of the spring, in Yaphank, is a frosty month, with average temperature ranging between min 36.3°F (2.4°C) and max 43.3°F (6.3°C). In March, the average high-temperature is relatively the same as in February - a chilly 43.3°F (6.3°C). Weather in March »

April in Yaphank, New York, is a fresh spring month, with average temperature ranging between max 51.4°F (10.8°C) and min 44.6°F (7°C). In April, the average high-temperature slightly increases, from a frosty 43.3°F (6.3°C) in March, to a cool 51.4°F (10.8°C). Weather in April »

The last month of the spring, May, is a mild month in Yaphank, New York, with average temperature ranging between min 54.1°F (12.3°C) and max 60.4°F (15.8°C). In May, the average high-temperature increases, from a cool 51.4°F (10.8°C) in April, to a mild 60.4°F (15.8°C). Weather in May »

The first month of the summer, June, is an agreeable month in Yaphank, New York, with temperature in the range of an average high of 69.3°F (20.7°C) and an average low of 63.1°F (17.3°C). In June, the average high-temperature marginally rises, from a moderate 60.4°F (15.8°C) in May, to a pleasant 69.3°F (20.7°C). Weather in June »

July is a warm summer month in Yaphank, New York, with average temperature varying between 76.8°F (24.9°C) and 71.4°F (21.9°C). In Yaphank, the average high-temperature slightly increases, from a pleasant 69.3°F (20.7°C) in June, to a warm 76.8°F (24.9°C). Weather in July »

The last month of the summer, August, is also a moderately hot month in Yaphank, New York, with average temperature ranging between min 71.4°F (21.9°C) and max 77.5°F (25.3°C). With an average high-temperature of 77.5°F (25.3°C) and an average low-temperature of 71.4°F (21.9°C), August is the warmest month. Weather in August »

The first month of the autumn, September, is still a pleasant month in Yaphank, New York, with average temperature fluctuating between 65.3°F (18.5°C) and 71.4°F (21.9°C). In September, the average high-temperature marginally drops, from a warm 77.5°F (25.3°C) in August, to a pleasant 71.4°F (21.9°C). Weather in September »

October, the same as September, is another enjoyable autumn month in Yaphank, New York, with average temperature ranging between max 62.6°F (17°C) and min 55.9°F (13.3°C). In October, the average high-temperature slightly decreases, from a pleasant 71.4°F (21.9°C) in September, to an enjoyable 62.6°F (17°C). Weather in October »

November, the last month of the autumn, in Yaphank, is also a fresh month, with average temperature fluctuating between 45.5°F (7.5°C) and 52.5°F (11.4°C). In Yaphank, the average high-temperature drops, from a comfortable 62.6°F (17°C) in October, to a cool 52.5°F (11.4°C). Weather in November »

December, the first month of the winter, in Yaphank, is also a frosty month, with average temperature ranging between max 44.8°F (7.1°C) and min 37°F (2.8°C). In December, the average high-temperature slightly decreases, from a cool 52.5°F (11.4°C) in November, to a frosty 44.8°F (7.1°C). Weather in December »

What is the coldest month in Yaphank?

The coldest month in Yaphank is January, with an average high-temperature of 38.7°F (3.7°C) and an average low-temperature of 30.6°F (-0.8°C).

How many days does it rain in Yaphank?

Throughout the year, there are 156.2 rainfall days, and 30.2" (767mm) of precipitation is accumulated.

What is the driest month in Yaphank?

January, February and September are months with the least rain in Yaphank, New York, when the rain falls for 10.1 days and typically aggregates up to 2.01" (51mm) of rain.

When does it snow in Yaphank?

Months with snowfall in Yaphank are January through April, November and December.

How much does it snow in Yaphank?

In Yaphank, New York, during the entire year, snow falls for 17.9 days, and aggregates up to 4.57" (116mm) of snow.

When does it snow the most in Yaphank?

The month with the most snowfall in Yaphank is January when snow falls for 5.3 days and typically aggregates up to 1.5" (38mm) of snow.

When is the lowest UV index in Yaphank?

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 Yaphank?

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

What is the most humid month in Yaphank?

May is the most humid month in Yaphank, with an average relative humidity of 80%.

When it does not snow in Yaphank?

In Yaphank snow does not fall in May through October.

When are the longest days in Yaphank?

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

When is the highest UV index in Yaphank?

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

What are the months with the most sunshine in Yaphank?

July and August, with an average of 10.8h of sunshine, are months with the most sunshine in Yaphank, New York.

What is the warmest month in Yaphank?

With an average high-temperature of 77.5°F (25.3°C) and an average low-temperature of 71.4°F (21.9°C), August is the warmest month in Yaphank, New York.

What is the least humid month in Yaphank?

With an average relative humidity of 71%, November is the least humid month.

What is the wettest month in Yaphank?

The month with the most rainfall in Yaphank is December when the rain falls for 12.8 days and typically aggregates up to 3.31" (84mm) of precipitation.

What is the month with the shortest days in Yaphank?

The month with the shortest days is December, with an average of 9.3h of daylight.
Average temperature - Yaphank, NY
Average pressure - Yaphank, NY

The month with the highest atmospheric pressure is November (30.09").
The month with the lowest atmospheric pressure is June (29.93").

Average wind speed - Yaphank, NY

The windiest month (with the highest average wind speed) is January (14.5mph).
The calmest months (with the lowest average wind speed) are July and August (9.6mph).

Average rainfall - Yaphank, NY

The wettest month (with the highest rainfall) is December (3.31").
The driest months (with the least rainfall) are January, February and September (2.01").

Average rainfall days - Yaphank, NY

The month with the highest number of rainy days is July (16 days).
The month with the least rainy days is February (9 days).

Average snowfall - Yaphank, NY
Average snowfall days - Yaphank, NY

The month with the highest number of snowfall days is February (5.4 days).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight / Average sunshine - Yaphank, 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: 10.8h).
The month with the least sunshine is February (Average sunshine: 4.8h).

Average sunshine days - Yaphank, NY

The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is February (12.8 days).

Average UV index - Yaphank, NY
Average visibility - Yaphank, 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).