Climate and monthly weather forecast
Smithtown, NY

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Weather in January

January, the same as December, is another cold winter month in Smithtown, New York, with an average temperature fluctuating between 37.6°F (3.1°C) and 28.9°F (-1.7°C). The coldest time of the year is January, with temperatures averaging a high of 37.6°F (3.1°C) and a low of 28.9°F (-1.7°C). Weather in January »

Weather in February

February, the last month of the winter in Smithtown, is also an icy month, with temperature in the range of an average low of 30.2°F (-1°C) and an average high of 39°F (3.9°C). Smithtown, New York, marks the onset of February with an average high-temperature of a still cold 39°F (3.9°C), a subtle shift from January's 37.6°F (3.1°C). Weather in February »

Weather in March

The first month of the spring, March, is a frosty month in Smithtown, New York, with temperature in the range of an average low of 36.1°F (2.3°C) and an average high of 44.2°F (6.8°C). Transitioning from February to March, Smithtown observes an average high-temperature of a chilly 44.2°F (6.8°C), differing subtly from the previous month. Weather in March »

Weather in April

April is a cool spring month in Smithtown, New York, with an average temperature varying between 53.1°F (11.7°C) and 45°F (7.2°C). The shift from March to April is marked by a slight increase in the average high-temperature, moving from a chilly 44.2°F (6.8°C) to a cool 53.1°F (11.7°C). Weather in April »

Weather in May

May, the last month of the spring in Smithtown, is a refreshing month, with an average temperature fluctuating between 54°F (12.2°C) and 62.6°F (17°C). Noticing a change, the average high-temperature during May moves from April's fresh 53.1°F (11.7°C) to an enjoyable 62.6°F (17°C). Weather in May »

Weather in June

June, the first month of the summer in Smithtown, is an agreeable month, with an average temperature ranging between max 71.8°F (22.1°C) and min 63.5°F (17.5°C). The start of June brings a shift in the average high-temperature, increasing from May's enjoyable 62.6°F (17°C) to a pleasant 71.8°F (22.1°C). Weather in June »

Weather in July

July in Smithtown, New York, is a moderately hot summer month, with an average temperature varying between 79.3°F (26.3°C) and 71.2°F (21.8°C). The month of July, characterized by an average high of 79.3°F (26.3°C) and a low of 71.2°F (21.8°C), is recognized as the warmest. Weather in July »

Weather in August

August, the last month of the summer in Smithtown, is another warm month, with temperature in the range of an average low of 71.6°F (22°C) and an average high of 78.6°F (25.9°C). The average high-temperature for August is a still warm 78.6°F (25.9°C), closely aligning with the temperature of the preceding month. Weather in August »

Weather in September

The first month of the autumn, September, is still a pleasant month in Smithtown, New York, with an average temperature varying between 64.8°F (18.2°C) and 72.3°F (22.4°C). September ushers in a minute temperature change, with average high-temperatures reducing from August's moderately hot 78.6°F (25.9°C) to a pleasant 72.3°F (22.4°C). Weather in September »

Weather in October

October, the same as September, is another comfortable autumn month in Smithtown, New York, with an average temperature fluctuating between 54.7°F (12.6°C) and 62.2°F (16.8°C). The beginning of October marks a decrease in the average high-temperature, transitioning from a pleasant 72.3°F (22.4°C) in September to a comfortable 62.2°F (16.8°C). Weather in October »

Weather in November

November, the last month of the autumn in Smithtown, is another cool month, with an average temperature fluctuating between 51.4°F (10.8°C) and 43.7°F (6.5°C). The arrival of November corresponds with a shift in temperature, down from an enjoyable 62.2°F (16.8°C) in October to a cool 51.4°F (10.8°C). Weather in November »

Weather in December

December, the first month of the winter in Smithtown, is still a chilly month, with an average temperature varying between 43.3°F (6.3°C) and 36°F (2.2°C). December's onset introduces a mild reduction in the average high-temperature, from a fresh 51.4°F (10.8°C) in November to a frosty 43.3°F (6.3°C). Weather in December »
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Frequently asked questions

What time of the year is the coldest in Smithtown?

With an average high-temperature of 37.6°F (3.1°C) and an average low-temperature of 28.9°F (-1.7°C), January is the coldest month in Smithtown, New York.

What is the driest month in Smithtown?

The month with the least rainfall is January, when the rain falls for 7.8 days and typically collects 2.2" (56mm) of precipitation.

How much does it rain in Smithtown?

Throughout the year, in Smithtown, New York, there are 155.9 rainfall days, and 35.94" (913mm) of precipitation is accumulated.

When does it snow in Smithtown?

January through March, November and December are months with snowfall in Smithtown, New York.

How much does it snow in Smithtown?

Throughout the year, in Smithtown, New York, there are 15.4 snowfall days, and 5.71" (145mm) of snow is accumulated.

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

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

What is the month with the least sunshine in Smithtown?

The month with the least sunshine in Smithtown is February, with an average of 4.8h of sunshine.

When does it snow the most in Smithtown?

March is the month with the most snowfall. Snow falls for 3.2 days and accumulates 1.85" (47mm) of snow.

When is Daylight Saving Time (DST) in Smithtown?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Smithtown, New York, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.

When it does not snow in Smithtown?

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

What is the most humid month in Smithtown?

May is the most humid month in Smithtown, with an average relative humidity of 77%.

When are the longest days in Smithtown?

With an average of 15h and 6min of daylight, June has the longest days of the year in Smithtown, New York.

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

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

What time of the year is the hottest in Smithtown?

With average high temperatures of 79.3°F (26.3°C) and lows of 71.2°F (21.8°C), July is the warmest month in Smithtown, New York.

What is the wettest month in Smithtown?

July is the month with the most rainfall. Rain falls for 17.4 days and accumulates 3.94" (100mm) of precipitation.

What month has the most sunshine in Smithtown?

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

What is the least humid month in Smithtown?

November is the least humid month in Smithtown, New York, with an average relative humidity of 71%.

What is the month with the shortest days in Smithtown?

December has the shortest days of the year, with an average of 9h and 18min of daylight.

Average temperature
Smithtown, NY

Average temperature - Smithtown, NY

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (37.6°F).

The month with the highest average low temperature is August (71.6°F).
The coldest month (with the lowest average low temperature) is January (28.9°F).

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Average pressure
Smithtown, NY

Average pressure - Smithtown, NY

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

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Average wind speed
Smithtown, NY

Average wind speed - Smithtown, NY

The windiest month (with the highest average wind speed) is January (12.8mph).
The calmest month (with the lowest average wind speed) is July (8.3mph).

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Average rainfall
Smithtown, NY

Average rainfall - Smithtown, NY

The wettest month (with the highest rainfall) is July (3.94").
The driest month (with the least rainfall) is January (2.2").

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Average rainfall days
Smithtown, NY

Average rainfall days - Smithtown, NY

The month with the highest number of rainy days is July (17.4 days).
The month with the least rainy days is January (7.8 days).

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Average snowfall
Smithtown, NY

Average snowfall - Smithtown, NY

The month with the highest snowfall is March (1.85").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days
Smithtown, NY

Average snowfall days - Smithtown, NY

The month with the highest number of snowfall days is February (4.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight / Average sunshine
Smithtown, NY

Average daylight / Average sunshine - Smithtown, NY

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

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Average sunshine days
Smithtown, NY

Average sunshine days - Smithtown, NY

The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is July (11.4 days).

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Average UV index
Smithtown, NY

Average UV index - Smithtown, NY

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

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Average visibility
Smithtown, NY

Average visibility - Smithtown, NY

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

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Smithtown, New York, USA

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