Climate and monthly weather forecast
South Valley Stream, NY

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Weather in January

January, like December, in South Valley Stream, New York, is another cold winter month, with an average temperature fluctuating between 37°F (2.8°C) and 28.2°F (-2.1°C). In South Valley Stream, the lowest average temperatures are observed in January, with a high of 37°F (2.8°C) and a low of 28.2°F (-2.1°C). Weather in January »

Weather in February

The last month of the winter, February, is another cold month in South Valley Stream, New York, with an average temperature ranging between min 29.8°F (-1.2°C) and max 39.4°F (4.1°C). South Valley Stream's entry into February measures an average high-temperature of a still cold 39.4°F (4.1°C), closely parallel to the preceding month. Weather in February »

Weather in March

The first month of the spring, March, is a frosty month in South Valley Stream, New York, with an average temperature ranging between min 36°F (2.2°C) and max 45.1°F (7.3°C). The beginning of March signals a minor rise in the average high-temperature, moving from a cold 39.4°F (4.1°C) in February to a frosty 45.1°F (7.3°C). Weather in March »

Weather in April

April in South Valley Stream, New York, is a cool spring month, with an average temperature fluctuating between 54.7°F (12.6°C) and 45.1°F (7.3°C). The shift into April is characterized by a rise in the average high-temperature, transitioning from March's chilly 45.1°F (7.3°C) to a cool 54.7°F (12.6°C). Weather in April »

Weather in May

May, the last month of the spring in South Valley Stream, is a refreshing month, with an average temperature fluctuating between 64.6°F (18.1°C) and 54.1°F (12.3°C). May's arrival brings a temperature shift, moving from a cool 54.7°F (12.6°C) in April to a refreshing 64.6°F (18.1°C). Weather in May »

Weather in June

The first month of the summer, June, is an agreeable month in South Valley Stream, New York, with temperature in the range of an average high of 73.2°F (22.9°C) and an average low of 63.9°F (17.7°C). Observing a minor shift, the average high-temperature during June adjusts from May's comfortable 64.6°F (18.1°C) to a pleasant 73.2°F (22.9°C). Weather in June »

Weather in July

July in South Valley Stream, New York, is a moderately hot summer month, with an average temperature ranging between max 80.6°F (27°C) and min 70.9°F (21.6°C). July, with its average high-temperature of 80.6°F (27°C) and an average low-temperature of 70.9°F (21.6°C), holds the record as the warmest month. July's mean heat index is appraised at 84.2°F (29°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in South Valley Stream, New York, with an average temperature ranging between min 71.1°F (21.7°C) and max 79.9°F (26.6°C). South Valley Stream's average high-temperature in August sits at a still moderately hot 79.9°F (26.6°C), showing little difference from the previous month. Weather in August »

Weather in September

The first month of the autumn, September, is also an agreeable month in South Valley Stream, New York, with an average temperature ranging between max 73.2°F (22.9°C) and min 64.2°F (17.9°C). In September, the meteorological conditions change slightly, with the average high-temperature moving from a moderately hot 79.9°F (26.6°C) in August to an agreeable 73.2°F (22.9°C). Weather in September »

Weather in October

October, the same as September, is another enjoyable autumn month in South Valley Stream, New York, with an average temperature varying between 63°F (17.2°C) and 54.1°F (12.3°C). A moderate decline in the average high-temperature is seen during October, decreasing from an agreeable 73.2°F (22.9°C) in September to an enjoyable 63°F (17.2°C). Weather in October »

Weather in November

The last month of the autumn, November, is another cool month in South Valley Stream, New York, with an average temperature varying between 51.6°F (10.9°C) and 42.6°F (5.9°C). Transition into November marks a drop in the average high-temperature, moving from a refreshing 63°F (17.2°C) in October to a fresh 51.6°F (10.9°C). Weather in November »

Weather in December

December, the first month of the winter in South Valley Stream, is also a frosty month, with temperature in the range of an average high of 43.5°F (6.4°C) and an average low of 36°F (2.2°C). The onset of December aligns with a soft reduction in the average high-temperature, gently falling from a cool 51.6°F (10.9°C) in November to a frosty 43.5°F (6.4°C). Weather in December »
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Frequently asked questions

What month is the coldest in South Valley Stream?

January, characterized by an average high temperature of 37°F (2.8°C) and a low temperature of 28.2°F (-2.1°C), is generally the coldest month in South Valley Stream.

What is the driest month in South Valley Stream?

January is the month with the least rainfall. Rain falls for 7.3 days and accumulates 0.91" (23mm) of precipitation.

How many days does it rain in South Valley Stream?

In South Valley Stream, New York, during the entire year, the rain falls for 135.3 days and collects up to 18.62" (473mm) of precipitation.

When does it snow in South Valley Stream?

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

How many days does it snow in South Valley Stream?

In South Valley Stream, during the entire year, snow falls for 15.8 days and aggregates up to 2.95" (75mm) of snow.

What is the month with the lowest UV index in South Valley Stream?

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

What is the month with the least sunshine in South Valley Stream?

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

When does it snow the most in South Valley Stream?

The month with the most snowfall in South Valley Stream, New York, is March, when snow falls for 3.3 days and typically aggregates up to 1.02" (26mm) of snow.

When is Daylight Saving Time (DST) in South Valley Stream?

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.

When it does not snow in South Valley Stream?

April through September are months without snowfall.

What is the most humid month in South Valley Stream?

The most humid month is May, with an average relative humidity of 77%.

When are the longest days in South Valley Stream?

June has the longest days of the year in South Valley Stream, New York, with an average of 15h and 0min of daylight.

What are the months with the highest UV index in South Valley Stream?

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

What month is the hottest in South Valley Stream?

The warmest month is July, with an average high-temperature of 80.6°F (27°C) and an average low-temperature of 70.9°F (21.6°C).

What is the rainiest month in South Valley Stream?

The wettest months are July and August, with an average 2.32" (59mm) of rainfall.

What month has the most sunshine in South Valley Stream?

With an average of 10.8h of sunshine, July has the most sunshine of the year.

What is the least humid month in South Valley Stream?

The least humid month in South Valley Stream, New York, is November, with an average relative humidity of 72%.

What is the month with the shortest days in South Valley Stream?

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

Average temperature
South Valley Stream, NY

Average temperature - South Valley Stream, NY

The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (37°F).

The month with the highest average low temperature is August (71.1°F).
The coldest month (with the lowest average low temperature) is January (28.2°F).

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Average pressure
South Valley Stream, NY

Average pressure - South Valley Stream, NY

The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed
South Valley Stream, NY

Average wind speed - South Valley Stream, NY

The windiest month (with the highest average wind speed) is January (12.4mph).
The calmest month (with the lowest average wind speed) is July (8mph).

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Average humidity
South Valley Stream, NY

Average humidity - South Valley Stream, NY

The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is November (72%).

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Average rainfall
South Valley Stream, NY

Average rainfall - South Valley Stream, NY

The wettest months (with the highest rainfall) are July and August (2.32").
The driest month (with the least rainfall) is January (0.91").

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Average rainfall days
South Valley Stream, NY

Average rainfall days - South Valley Stream, NY

The month with the highest number of rainy days is July (15.1 days).
The month with the least rainy days is January (7.3 days).

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Average snowfall
South Valley Stream, NY

Average snowfall - South Valley Stream, NY

The month with the highest snowfall is March (1.02").
The months with the least snowfall are April, May, June, July, August and September (0").

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Average snowfall days
South Valley Stream, NY

Average snowfall days - South Valley Stream, NY

The month with the highest number of snowfall days is January (4.6 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
South Valley Stream, NY

Average daylight / Average sunshine - South Valley Stream, NY

The month with the longest days is June (Average daylight: 15h and 0min).
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
South Valley Stream, NY

Average sunshine days - South Valley Stream, NY

The month with the most sunshine days is January (19.8 days).
The month with the least sunshine days is July (13.6 days).

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Average UV index
South Valley Stream, NY

Average UV index - South Valley Stream, 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, November and December (UV index 2).

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Average visibility
South Valley Stream, NY

Average visibility - South Valley Stream, 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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South Valley Stream, New York, USA

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