Climate and monthly weather forecast
Ronkonkoma, NY

Weather in January

January, like December, in Ronkonkoma, New York, is another cold winter month, with an average temperature ranging between max 37.9°F (3.3°C) and min 30.2°F (-1°C). With an average high-temperature of 37.9°F (3.3°C) and an average low-temperature of 30.2°F (-1°C), January is the coldest month. Weather in January »

Weather in February

February, the last month of the winter in Ronkonkoma, is another cold month, with an average temperature ranging between max 39.7°F (4.3°C) and min 31.3°F (-0.4°C). In Ronkonkoma, the average high-temperature in February is essentially the same as in January - a still cold 39.7°F (4.3°C). Weather in February »

Weather in March

The first month of the spring, March, is a frosty month in Ronkonkoma, New York, with an average temperature fluctuating between 44.2°F (6.8°C) and 36.3°F (2.4°C). In March, the average high-temperature is essentially the same as in February - a frosty 44.2°F (6.8°C). Weather in March »

Weather in April

April in Ronkonkoma, New York, is a fresh spring month, with an average temperature ranging between max 52.3°F (11.3°C) and min 45.1°F (7.3°C). In April, the average high-temperature marginally rises from a chilly 44.2°F (6.8°C) in March to a fresh 52.3°F (11.3°C). Weather in April »

Weather in May

The last month of the spring, May, is an enjoyable month in Ronkonkoma, New York, with an average temperature ranging between max 61.2°F (16.2°C) and min 54.3°F (12.4°C). In May, the average high-temperature marginally rises from a fresh 52.3°F (11.3°C) in April to a comfortable 61.2°F (16.2°C). Weather in May »

Weather in June

June, the first month of the summer in Ronkonkoma, is an agreeable month, with temperature in the range of an average high of 70.7°F (21.5°C) and an average low of 63.5°F (17.5°C). In Ronkonkoma, the average high-temperature in June rises from an enjoyable 61.2°F (16.2°C) in May to a pleasant 70.7°F (21.5°C). Weather in June »

Weather in July

July in Ronkonkoma, New York, is a moderately hot summer month, with an average temperature ranging between max 77.9°F (25.5°C) and min 71.6°F (22°C). In July, the average high-temperature marginally rises from an agreeable 70.7°F (21.5°C) in June to a moderately hot 77.9°F (25.5°C). Weather in July »

Weather in August

August, the last month of the summer in Ronkonkoma, is another warm month, with an average temperature fluctuating between 78.1°F (25.6°C) and 71.8°F (22.1°C). The warmest month is August, with an average high-temperature of 78.1°F (25.6°C) and an average low-temperature of 71.8°F (22.1°C). Weather in August »

Weather in September

September, the first month of the autumn in Ronkonkoma, is also an agreeable month, with an average temperature ranging between min 65.3°F (18.5°C) and max 72.1°F (22.3°C). In Ronkonkoma, the average high-temperature in September slightly decreases from a moderately hot 78.1°F (25.6°C) in August to an agreeable 72.1°F (22.3°C). Weather in September »

Weather in October

October, the same as September, is another comfortable autumn month in Ronkonkoma, New York, with temperature in the range of an average low of 55.8°F (13.2°C) and an average high of 62.4°F (16.9°C). In Ronkonkoma, the average high-temperature in October decreases from a pleasant 72.1°F (22.3°C) in September to a comfortable 62.4°F (16.9°C). Weather in October »

Weather in November

The last month of the autumn, November, is another cool month in Ronkonkoma, New York, with an average temperature varying between 52.3°F (11.3°C) and 45°F (7.2°C). In November, the average high-temperature decreases from an enjoyable 62.4°F (16.9°C) in October to a cool 52.3°F (11.3°C). Weather in November »

Weather in December

The first month of the winter, December, is also a frosty month in Ronkonkoma, New York, with an average temperature ranging between min 37.2°F (2.9°C) and max 44.1°F (6.7°C). In Ronkonkoma, the average high-temperature in December marginally drops from a fresh 52.3°F (11.3°C) in November to a frosty 44.1°F (6.7°C). Weather in December »
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FAQ

What is the coldest month in Ronkonkoma?

The coldest month in Ronkonkoma, New York, is January, with an average high-temperature of 37.9°F (3.3°C) and an average low-temperature of 30.2°F (-1°C).

What is the driest month in Ronkonkoma?

January is the month with the least rainfall in Ronkonkoma, New York. Rain falls for 8.3 days and accumulates 2.17" (55mm) of precipitation.

How much does it rain in Ronkonkoma?

In Ronkonkoma, New York, during the entire year, the rain falls for 155.3 days and collects up to 34.84" (885mm) of precipitation.

When does it snow in Ronkonkoma?

January through March, May, October and December are months with snowfall in Ronkonkoma, New York.

How many days does it snow in Ronkonkoma?

In Ronkonkoma, New York, during the entire year, snow falls for 14.7 days and aggregates up to 6.14" (156mm) of snow.

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

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 Ronkonkoma?

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

What is the snowiest month in Ronkonkoma?

March is the month with the most snowfall in Ronkonkoma. Snow falls for 2.5 days and accumulates 2.13" (54mm) of snow.

When is Daylight Saving Time (DST) in Ronkonkoma?

On Sunday, March 12. 2023, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 5. 2023, at 2:00 am, and the time zone reverts from EDT to EST.

When it does not snow in Ronkonkoma?

April, June through September and November are months without snowfall in Ronkonkoma.

What is the most humid month in Ronkonkoma?

May and June, with an average relative humidity of 78%, are most humid months.

When are the longest days in Ronkonkoma?

June has the longest days of the year, with an average of 15h and 3min of daylight.

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

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

What month has the most sunshine in Ronkonkoma?

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

What is the warmest month in Ronkonkoma?

With an average high-temperature of 78.1°F (25.6°C) and an average low-temperature of 71.8°F (22.1°C), August is the warmest month in Ronkonkoma, New York.

What is the least humid month in Ronkonkoma?

The least humid month is November, with an average relative humidity of 71%.

What is the rainiest month in Ronkonkoma?

The month with the most rainfall in Ronkonkoma, New York, is December, when the rain falls for 12.3 days and typically aggregates up to 3.74" (95mm) of precipitation.

What is the month with the shortest days in Ronkonkoma?

December has the shortest days of the year in Ronkonkoma, New York, with an average of 9h and 19min of daylight.

Average temperature
Ronkonkoma, NY

Average temperature - Ronkonkoma, NY

The warmest month (with the highest average high temperature) is August (78.1°F).
The month with the lowest average high temperature is January (37.9°F).

The month with the highest average low temperature is August (71.8°F).
The coldest month (with the lowest average low temperature) is January (30.2°F).

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Average pressure
Ronkonkoma, NY

Average pressure - Ronkonkoma, 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
Ronkonkoma, NY

Average wind speed - Ronkonkoma, NY

The windiest month (with the highest average wind speed) is January (13.8mph).
The calmest months (with the lowest average wind speed) are July and August (9mph).

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Average humidity
Ronkonkoma, NY

Average humidity - Ronkonkoma, NY

The months with the highest relative humidity are May and June (78%).
The month with the lowest relative humidity is November (71%).

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Average rainfall
Ronkonkoma, NY

Average rainfall - Ronkonkoma, NY

The wettest month (with the highest rainfall) is December (3.74").
The driest month (with the least rainfall) is January (2.17").

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Average rainfall days
Ronkonkoma, NY

Average rainfall days - Ronkonkoma, NY

The month with the highest number of rainy days is July (17.7 days).
The month with the least rainy days is January (8.3 days).

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Average snowfall
Ronkonkoma, NY

Average snowfall - Ronkonkoma, NY

The month with the highest snowfall is March (2.13").
The months with the least snowfall are April, June, July, August, September and November (0").

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Average snowfall days
Ronkonkoma, NY

Average snowfall days - Ronkonkoma, NY

The month with the highest number of snowfall days is February (4.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
Ronkonkoma, NY

Average daylight / Average sunshine - Ronkonkoma, NY

The month with the longest days is June (Average daylight: 15h and 3min).
The month with the shortest days is December (Average daylight: 9h and 19min).

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
Ronkonkoma, NY

Average sunshine days - Ronkonkoma, NY

The month with the most sunshine days is November (18.8 days).
The month with the least sunshine days is July (11.3 days).

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Average UV index
Ronkonkoma, NY

Average UV index - Ronkonkoma, 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
Ronkonkoma, NY

Average visibility - Ronkonkoma, 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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