Climate and monthly weather forecast
Brookhaven, NY

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Weather in January

January, the same as December, is another cold winter month in Brookhaven, New York, with temperature in the range of an average high of 38.7°F (3.7°C) and an average low of 30.6°F (-0.8°C). The coldest temperatures occur during January, when averages reach a peak of 38.7°F (3.7°C) and a low of 30.6°F (-0.8°C). Weather in January »

Weather in February

The last month of the winter, February, is another cold month in Brookhaven, New York, with an average temperature fluctuating between 39.6°F (4.2°C) and 31.5°F (-0.3°C). With the onset of February, the average high-temperature stands at a still icy 39.6°F (4.2°C), closely aligned with January's 38.7°F (3.7°C). Weather in February »

Weather in March

The first month of the spring, March, is a chilly month in Brookhaven, New York, with an average temperature fluctuating between 43.3°F (6.3°C) and 36.3°F (2.4°C). March's onset brings an average high-temperature of a chilly 43.3°F (6.3°C), showing a minute difference from February's 39.6°F (4.2°C). Weather in March »

Weather in April

April in Brookhaven, New York, is a fresh spring month, with temperature in the range of an average low of 44.6°F (7°C) and an average high of 51.4°F (10.8°C). As Brookhaven, New York, transitions into April, the average high-temperature is observed to slightly rise from a chilly 43.3°F (6.3°C) in March to a cool 51.4°F (10.8°C). Weather in April »

Weather in May

May, the last month of the spring in Brookhaven, is a mild month, with an average temperature fluctuating between 60.4°F (15.8°C) and 54.1°F (12.3°C). The beginning of May marks a shift in the average high-temperature, moving from April's fresh 51.4°F (10.8°C) to a moderate 60.4°F (15.8°C). Weather in May »

Weather in June

June, the first month of the summer in Brookhaven, is a pleasant month, with an average temperature ranging between min 63.1°F (17.3°C) and max 69.3°F (20.7°C). The embrace of June brings a minor uplift in the average high-temperature, shifting from a mild 60.4°F (15.8°C) in May to an agreeable 69.3°F (20.7°C). Weather in June »

Weather in July

July is a moderately hot summer month in Brookhaven, New York, with temperature in the range of an average low of 71.4°F (21.9°C) and an average high of 76.8°F (24.9°C). In July, the average high-temperature marginally rises from an agreeable 69.3°F (20.7°C) in June to a warm 76.8°F (24.9°C). Weather in July »

Weather in August

August, the last month of the summer in Brookhaven, is also a moderately hot month, with an average temperature fluctuating between 77.5°F (25.3°C) and 71.4°F (21.9°C). August proves to be the warmest month, recording an average peak temperature of 77.5°F (25.3°C) and a minimum temperature of 71.4°F (21.9°C). Weather in August »

Weather in September

The first month of the autumn, September, is also an agreeable month in Brookhaven, New York, with an average temperature varying between 71.4°F (21.9°C) and 65.3°F (18.5°C). During the shift to September, Brookhaven records a mild decrease in average high-temperature, moving from a moderately hot 77.5°F (25.3°C) in August to an agreeable 71.4°F (21.9°C). Weather in September »

Weather in October

October, the same as September, is another comfortable autumn month in Brookhaven, New York, with an average temperature ranging between min 55.9°F (13.3°C) and max 62.6°F (17°C). October signifies a gentle decline in Brookhaven's average high-temperature, easing from a pleasant 71.4°F (21.9°C) in September to a refreshing 62.6°F (17°C). Weather in October »

Weather in November

November, the last month of the autumn in Brookhaven, is also a fresh month, with an average temperature varying between 45.5°F (7.5°C) and 52.5°F (11.4°C). In Brookhaven, entering November brings a temperature decrement, reducing from October's enjoyable 62.6°F (17°C) to a fresh 52.5°F (11.4°C). Weather in November »

Weather in December

December, the first month of the winter in Brookhaven, is still a chilly month, with temperature in the range of an average high of 44.8°F (7.1°C) and an average low of 37°F (2.8°C). December's arrival comes with a mild decrease in the average high-temperature, moving subtly from a cool 52.5°F (11.4°C) in November to a chilly 44.8°F (7.1°C). Weather in December »
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Frequently asked questions

What is the coldest month in Brookhaven?

With its average high temperature of 38.7°F (3.7°C) and a low of 30.6°F (-0.8°C), January is regarded as the coldest month in Brookhaven, New York.

What is the driest month in Brookhaven?

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

How much does it rain in Brookhaven?

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

When does it snow in Brookhaven?

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

When does it snow the most in Brookhaven?

January is the month with the most snowfall. Snow falls for 5.3 days and accumulates 1.5" (38mm) of snow.

How much does it snow in Brookhaven?

Throughout the year, in Brookhaven, there are 17.9 snowfall days, and 4.57" (116mm) of snow is accumulated.

What is the month with the lowest UV index in Brookhaven?

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

What is the month with the least sunshine in Brookhaven?

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

When is Daylight Saving Time (DST) in Brookhaven?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, 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.

What is the most humid month in Brookhaven?

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

When it does not snow in Brookhaven?

In Brookhaven, snow does not fall in May through October.

When are the longest days in Brookhaven?

June has the longest days of the year, with an average of 15h and 6min of daylight.

What are the months with the highest UV index in Brookhaven?

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

What are the months with the most sunshine in Brookhaven?

The months with the most sunshine in Brookhaven are July and August, with an average of 10.8h of sunshine.

What is the hottest time of year in Brookhaven?

In Brookhaven, the peak temperatures are generally noted in August, averaging a high of 77.5°F (25.3°C) and a low of 71.4°F (21.9°C).

What is the least humid month in Brookhaven?

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

What is the rainiest month in Brookhaven?

The month with the most rainfall 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 Brookhaven?

The month with the shortest days in Brookhaven is December, with an average of 9h and 18min of daylight.

Average temperature
Brookhaven, NY

Average temperature - Brookhaven, NY

The warmest month (with the highest average high temperature) is August (77.5°F).
The month with the lowest average high temperature is January (38.7°F).

The months with the highest average low temperature are July and August (71.4°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).

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Average pressure
Brookhaven, NY

Average pressure - Brookhaven, 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
Brookhaven, NY

Average wind speed - Brookhaven, 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).

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Average rainfall
Brookhaven, NY

Average rainfall - Brookhaven, 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").

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Average rainfall days
Brookhaven, NY

Average rainfall days - Brookhaven, 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).

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Average snowfall
Brookhaven, NY

Average snowfall - Brookhaven, NY

The month with the highest snowfall is January (1.5").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days
Brookhaven, NY

Average snowfall days - Brookhaven, NY

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

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Average daylight / Average sunshine
Brookhaven, NY

Average daylight / Average sunshine - Brookhaven, 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 months with the most sunshine are July and August (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
Brookhaven, NY

Average sunshine days - Brookhaven, 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).

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Average UV index
Brookhaven, NY

Average UV index - Brookhaven, 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
Brookhaven, NY

Average visibility - Brookhaven, 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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Brookhaven, New York, USA

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