Climate and monthly weather forecast
Uniondale, NY

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Weather in January

January, the same as December, is an icy winter month in Uniondale, New York, with an average temperature varying between 29.3°F (-1.5°C) and 37.6°F (3.1°C). January, with average temperatures reaching a high of 37.6°F (3.1°C) and a low of 29.3°F (-1.5°C), is the coldest month. Weather in January »

Weather in February

February, the last month of the winter in Uniondale, is also an icy month, with an average temperature varying between 30.4°F (-0.9°C) and 39.6°F (4.2°C). Uniondale ushers in February with an average high-temperature of a still wintry 39.6°F (4.2°C), showing a close resemblance to the previous month. Weather in February »

Weather in March

The first month of the spring, March, is a chilly month in Uniondale, New York, with temperature in the range of an average high of 44.4°F (6.9°C) and an average low of 36.1°F (2.3°C). Uniondale starts March with an average high-temperature of a chilly 44.4°F (6.9°C), hinting at a minimal fluctuation from February. Weather in March »

Weather in April

April in Uniondale, New York, is a fresh spring month, with an average temperature varying between 53.6°F (12°C) and 44.8°F (7.1°C). April's onset brings a rise in the average high-temperature, moving from a frosty 44.4°F (6.9°C) in March to a fresh 53.6°F (12°C). Weather in April »

Weather in May

The last month of the spring, May, is a refreshing month in Uniondale, New York, with an average temperature ranging between max 63.1°F (17.3°C) and min 54.5°F (12.5°C). May signals a shift in the average high-temperature, moving from April's fresh 53.6°F (12°C) to a comfortable 63.1°F (17.3°C). Weather in May »

Weather in June

The first month of the summer, June, is an agreeable month in Uniondale, New York, with an average temperature varying between 72.5°F (22.5°C) and 64°F (17.8°C). The arrival of June brings an increase in high-temperatures, moving from a refreshing 63.1°F (17.3°C) in May to an agreeable 72.5°F (22.5°C). Weather in June »

Weather in July

July is a warm summer month in Uniondale, New York, with an average temperature varying between 79.3°F (26.3°C) and 71.4°F (21.9°C). July, with its high-temperature average of 79.3°F (26.3°C) and a low-temperature average of 71.4°F (21.9°C), is the warmest month. Weather in July »

Weather in August

August, the last month of the summer in Uniondale, is another warm month, with an average temperature varying between 78.8°F (26°C) and 71.2°F (21.8°C). Uniondale's entry into August measures an average high-temperature of a still moderately hot 78.8°F (26°C), closely parallel to the preceding month. Weather in August »

Weather in September

The first month of the autumn, September, is also an agreeable month in Uniondale, New York, with temperature in the range of an average high of 72.5°F (22.5°C) and an average low of 64.8°F (18.2°C). The onset of September results in a small decrease in the average high-temperature, moderately receding from a warm 78.8°F (26°C) in August to an agreeable 72.5°F (22.5°C). Weather in September »

Weather in October

October, like September, in Uniondale, New York, is another enjoyable autumn month, with temperature in the range of an average low of 54.7°F (12.6°C) and an average high of 62.4°F (16.9°C). October's onset corresponds with a shift in the average high-temperature, moving from a pleasant 72.5°F (22.5°C) in September to a comfortable 62.4°F (16.9°C). Weather in October »

Weather in November

November, the last month of the autumn in Uniondale, is also a fresh month, with an average temperature varying between 51.6°F (10.9°C) and 43.7°F (6.5°C). The arrival of November corresponds with a reduction in the average high-temperature, down from October's enjoyable 62.4°F (16.9°C) to a fresh 51.6°F (10.9°C). Weather in November »

Weather in December

The first month of the winter, December, is also a frosty month in Uniondale, New York, with an average temperature ranging between max 43.7°F (6.5°C) and min 36.1°F (2.3°C). December's arrival aligns with a minor decrease in average high-temperatures, from November's cool 51.6°F (10.9°C) to a chilly 43.7°F (6.5°C). Weather in December »
Updated: Aug 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the coldest in Uniondale?

The coldest period tends to be January, when average temperatures fluctuate between a high of 37.6°F (3.1°C) and a low of 29.3°F (-1.5°C).

How much does it rain?

In Uniondale, during the entire year, the rain falls for 112.1 days and collects up to 8.66" (220mm) of precipitation.

When does it snow?

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

What is the snowiest month?

The month with the most snowfall is January, when snow falls for 4.2 days and typically aggregates up to 0.43" (11mm) of snow.

How many days does it snow?

In Uniondale, during the entire year, snow falls for 14.1 days and aggregates up to 1.34" (34mm) of snow.

What is the month with the lowest UV index?

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?

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

When is Daylight Saving Time (DST)?

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?

April through September are months without snowfall.

What is the most humid month in Uniondale?

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

When are the longest days?

June has the longest days of the year, with an average of 15h and 0min of daylight.

What are the months with the highest UV index?

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

What part of the year is the hottest?

July stands out as Uniondale's warmest month, with temperatures ranging between an average high of 79.3°F (26.3°C) and a low of 71.4°F (21.9°C).

What is the wettest month?

July is the month with the most rainfall. Rain falls for 12.4 days and accumulates 0.98" (25mm) of precipitation.

What month has the most sunshine?

The month with the most sunshine is July, with an average of 10.9h of sunshine.

What is the driest month?

The month with the least rainfall is September, when the rain falls for 9.5 days and typically collects 0.43" (11mm) of precipitation.

What is the least humid month in Uniondale?

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

What is the month with the shortest days?

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

Average temperature
Uniondale, NY

Average temperature - Uniondale, 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 July (71.4°F).
The coldest month (with the lowest average low temperature) is January (29.3°F).

Average pressure
Uniondale, NY

Average pressure - Uniondale, 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).

Average wind speed
Uniondale, NY

Average wind speed - Uniondale, NY

The windiest month (with the highest average wind speed) is January (12.9mph).
The calmest month (with the lowest average wind speed) is July (8.5mph).

Average humidity
Uniondale, NY

Average humidity - Uniondale, NY

The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is November (71%).

Average rainfall
Uniondale, NY

Average rainfall - Uniondale, NY

The wettest month (with the highest rainfall) is July (0.98").
The driest month (with the least rainfall) is September (0.43").

Average rainfall days
Uniondale, NY

Average rainfall days - Uniondale, NY

The month with the highest number of rainy days is July (12.4 days).
The month with the least rainy days is January (6.2 days).

Average snowfall
Uniondale, NY

Average snowfall - Uniondale, NY

The month with the highest snowfall is January (0.43").
The months with the least snowfall are April, May, June, July, August and September (0").

Average snowfall days
Uniondale, NY

Average snowfall days - Uniondale, NY

The month with the highest number of snowfall days is January (4.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight / Average sunshine
Uniondale, NY

Average daylight / Average sunshine - Uniondale, 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 54min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

Average sunshine days
Uniondale, NY

Average sunshine days - Uniondale, NY

The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is July (15.1 days).

Average UV index
Uniondale, NY

Average UV index - Uniondale, 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).

Average visibility
Uniondale, NY

Average visibility - Uniondale, 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).

Uniondale, New York, USA

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