Climate and monthly weather forecast
Union City, NJ

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The climate of Union City

Union City experiences a Humid subtropical climate (Cfa), as per the Köppen climate classification. Located in the state of New Jersey, USA, the city is characterized by high temperatures and above-average rainfall throughout the year.

The average high temperatures in Union City span from 36.3°F (2.4°C) in January to a peak of 83.3°F (28.5°C) in July. Cool winters give way to warming spring, followed by hot summers, and back to mild autumn. The overnight lows follow this seasonal pattern as well, starting from 25.7°F (-3.5°C) in the coldest month of January and rising up to 69.3°F (20.7°C) in July.

Humidity levels are relatively stable year-round, ranging from a low of 70% in August to a high of 76% in February and December. Union City sees substantial rainfall annually with peak precipitation of 3.43" (87mm) in July and the lowest of 2.2" (56mm) in September. Snowfall is primarily limited to the months from January to March, with January being the snowiest month receiving 2.8" (71mm) of snow.

Regarding sunlight, there is variation from 9.3 hours per day in December to as much as 15.1 hours in June. However, bright sunshine is available for about one-third to half of daylight hours, varying from 4.9 hours in December to 10.5 hours per day in July. Wind speeds are also moderate, with speeds tending to be greatest between January and March, at around 9.5mph (15.3km/h) to 9.7mph (15.6km/h).

One of the most distinguishing aspects of Union City's weather is the consistent visibility, which remains at a steady 6 miles throughout the year. Also noteworthy is the slight variance in atmospheric pressure, which lies between 29.93 in Hg during June and 30.1 in Hg in November.

The best time to visit Union City

Considering a combination of pleasant temperatures and favourable climate conditions, the period from May through September could be the ideal time to visit Union City. During this time, temperatures hover between 57.6°F (14.2°C) to 82°F (27.8°C) during the day and between 53.6°F (12°C) to 69.3°F (20.7°C) during the night. Rainfall averages are also slightly lower, standing at around 2.95" (75mm), making these months less likely to be disrupted by heavy precipitation. Furthermore, sunshine is most abundant with up to 10.5 hours per day, offering ample opportunity for outdoor exploration.

The worst time to visit Union City

The winter months, specifically from December to February, may present some challenges for visitors to Union City. During this period, the city experiences its lowest temperatures, with highs averaging between 36.3°F (2.4°C) to 39°F (3.9°C) and lows dropping down to 25.7°F (-3.5°C) to 27.5°F (-2.5°C). Moreover, this period sees the highest snowfall, peaking at 2.8" (71mm) in February, which could lead to travel disruptions. The days are also shorter with daylight hours ranging from 9.3 to 10.7 hours, and sunshine duration dropping to around 4.9 to 5.1 hours per day.

Spring weather in Union City

Spring in Union City is observed from March to May, with temperatures gradually increasing from 46.4°F (8°C) to 68.4°F (20.2°C) during the day and from 34.2°F (1.2°C) to 53.6°F (12°C) during the night. In terms of rainfall, March sees an average of 2.87" (73mm) of rain, however, it gradually increases to 2.95" (75mm) by May. Despite this increase, rainfall is spread across the month with about 16.7 rain days in May. Daylight hours also increase during this season, reaching up to 14.5 hours in May, though bright sunshine averages at about 8.4 hours.

Summer weather in Union City

Summer in Union City spans June to August and is characterized by high temperatures and increased rainfall. Daytime highs range from 76.6°F (24.8°C) in June to the peak of 83.3°F (28.5°C) in July, while nighttime lows hover from 62.4°F (16.9°C) to 69.3°F (20.7°C). July records the highest rainfall for the year at 3.43" (87mm). The summer season is the brightest in Union City, providing up to 15.1 hours of daylight in June, with as many as 10.5 hours of bright sunshine in July.

Autumn weather in Union City

Autumn, from September to November, marks a gradual decrease in temperatures in Union City. Temperatures during the day range from 75°F (23.9°C) in September down to 51.3°F (10.7°C) in November, while the nights get cooler from 61.7°F (16.5°C) down to 39.9°F (4.4°C). Rainfall also varies, with September seeing the least rain for the year at 2.2" (56mm), but then subsequently increasing to 2.68" (68mm) by November. Daylight hours decrease during these months, dropping from 12.5 hours in September to 9.9 hours in November.

Winter weather in Union City

Winter season in Union City runs from December to February, featuring the coolest temperatures of the year. Daytime highs are between 36.3°F (2.4°C) to 39°F (3.9°C), while the lows are between 25.7°F (-3.5°C) to 27.5°F (-2.5°C). December records the highest rainfall of the season at 3.78" (96mm), while snowfall is most substantial in February with 2.8" (71mm) of snow observed. Daylight is least in winter, dwindling down to 9.3 hours in December, though sunshine is available for about 5 hours even during these shorter days.

Weather in January

Union City, New Jersey, ushers in the New Year on a chilly note. Comparatively colder than the upcoming February, the weather of January is marked by frosty winds, with temperatures dropping as low as 25.7°F (-3.5°C). The city experiences evident short days, deleterious for sun-lovers keen on outdoor activities, but ideal for those fond of the winter chill. Weather in January »

Weather in February

As the calendar turns the page to February, slight changes grace Union City's weather narrative. February perpetuates the winter feel instigated by its predecessor, albeit with a subtle increment in the temperatures, hitting highs up to 39°F (3.9°C). Weather in February »

Weather in March

March makes its presence felt in Union City as the season slowly moves towards spring, offering respite from the recurring bouts of snow experienced in February, and limit them to 3.86" (98mm). The city begins the process of shrugging off its winter cloak, paving the way for brighter, longer days. Weather in March »

Weather in April

April sees the weather become decidedly spring-like, leaving the previous colder months' vestiges far behind. A marked leap in temperature spells highs reaching up to 57.6°F (14.2°C), contrasting sharply with those from cold March. Weather in April »

Weather in May

The weather in Union City in May firmly underscores the departure of spring and the onset of summer. The transition period sees a pleasant evolution, marked by moderate humidity and increased temperatures. May sets the stage for a colorful culmination of spring, with vibrant flowers in full bloom dotting the cityscape. Weather in May »

Weather in June

June is when summer in Union City officially kicks off, characterized by considerable temperature rise and June seeing highs up to 76.6°F (24.8°C). This month features the longest daylight hours of the year, resulting in ample time for outdoor activities and exploration. Weather in June »

Weather in July

July is the warmest month in Union City, New Jersey, with temperatures peaking at an annual high of 83.3°F (28.5°C). The weather is predominantly hot and humid, accentuated by the sun shining bright for nearly fifteen hours a day. Weather in July »

Weather in August

Union City's August weather offers signs of a gradual retreat from the peak summer conditions noticed in July. There's a slight decline in temperatures, yet it swelters under days hotter than 82°F (27.8°C). The city experiences the tail end of the summer season as the sun continues to shine bright for long hours. Weather in August »

Weather in September

September serves as a bridge between the summer and autumn seasons in Union City. Experiencing a cool-down from the sweltering days of August, September's weather becomes more comfortable. This month is marked by the perfect equilibrium of temperature and sunshine hours, making it ideal for enjoying outdoor events. Weather in September »

Weather in October

The weather in Union City in October is quintessentially autumnal. Marked by pleasant fall temperatures, October witnesses a significant drop from the previous sultry September, with lows dipping to about 51.6°F (10.9°C). As the fall foliage takes over the cityscape, the reduced daylight hours render the evenings cooler and the days shorter. Weather in October »

Weather in November

November in Union City signifies a significant transformation as the city braves through its first snowfall, a slight 0.28" (7mm). The temperature continues its downward trend, allowing the chill of winter to seep in. A noticeable drop in the daylight hours is apparent, further reinforcing the onset of winter. Weather in November »

Weather in December

December in Union City confirms the arrival of winter as temperatures plummet to as low as 32.9°F (0.5°C). The short daylight hours and a decrease in sunshine, compared to long November's lights, dominate this month. With the city under the grip of a pronounced chill, and the days becoming increasingly short, outdoor activities take a backseat. Weather in December »
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Frequently asked questions

What is the coldest month in Union City?

January is the coldest month, with an average high-temperature of 36.3°F (2.4°C) and an average low-temperature of 25.7°F (-3.5°C).

How much does it rain in Union City?

In Union City, New Jersey, during the entire year, the rain falls for 160.7 days and collects up to 34.72" (882mm) of precipitation.

When does it snow in Union City?

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

How many days does it snow in Union City?

In Union City, New Jersey, during the entire year, snow falls for 22.7 days and aggregates up to 10.79" (274mm) of snow.

What is the month with the lowest UV index in Union City?

The months with the lowest UV index in Union City, New Jersey, are January through March, November and December, with an average maximum UV index of 2.

What are the most humid months in Union City?

The months with the highest humidity are February and December, with an average relative humidity of 76%.

What is the month with the least sunshine in Union City?

February has the least sunshine of the year in Union City, New Jersey, with an average of 4.8h of sunshine.

What is the snowiest month in Union City?

The month with the most snowfall in Union City is March, when snow falls for 4.8 days and typically aggregates up to 3.86" (98mm) of snow.

When is Daylight Saving Time (DST) in Union City?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Union City, New Jersey, 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 Union City?

In Union City, New Jersey, snow does not fall in May through October.

When are the longest days in Union City?

The month with the longest days in Union City, New Jersey, is June, with an average of 15h and 6min of daylight.

When is the highest UV index in Union City?

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 Union City?

July, with an average high of 83.3°F (28.5°C) and a low of 69.3°F (20.7°C), signifies the warmest month of the year in Union City.

What month has the most sunshine in Union City?

July has the most sunshine of the year in Union City, with an average of 10.5h of sunshine.

What is the least humid month in Union City?

August is the least humid month, with an average relative humidity of 70%.

What is the driest month in Union City?

The month with the least rainfall in Union City is September, when the rain falls for 12.5 days and typically collects 2.2" (56mm) of precipitation.

What is the wettest month in Union City?

December is the month with the most rainfall in Union City. Rain falls for 12.5 days and accumulates 3.78" (96mm) of precipitation.

What is the month with the shortest days in Union City?

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

Average temperature
Union City, NJ

Average temperature - Union City, NJ

The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (36.3°F).

The month with the highest average low temperature is July (69.3°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).

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Average pressure
Union City, NJ

Average pressure - Union City, NJ

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
Union City, NJ

Average wind speed - Union City, NJ

The windiest month (with the highest average wind speed) is January (9.7mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).

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Average humidity
Union City, NJ

Average humidity - Union City, NJ

The months with the highest relative humidity are February and December (76%).
The month with the lowest relative humidity is August (70%).

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Average rainfall
Union City, NJ

Average rainfall - Union City, NJ

The wettest month (with the highest rainfall) is December (3.78").
The driest month (with the least rainfall) is September (2.2").

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Average rainfall days
Union City, NJ

Average rainfall days - Union City, NJ

The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is January (9 days).

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Average snowfall
Union City, NJ

Average snowfall - Union City, NJ

The month with the highest snowfall is March (3.86").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days
Union City, NJ

Average snowfall days - Union City, NJ

The month with the highest number of snowfall days is February (6.7 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
Union City, NJ

Average daylight / Average sunshine - Union City, NJ

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 30min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

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Average sunshine days
Union City, NJ

Average sunshine days - Union City, NJ

The month with the most sunshine days is November (17.9 days).
The month with the least sunshine days is June (11.7 days).

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Average UV index
Union City, NJ

Average UV index - Union City, NJ

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
Union City, NJ

Average visibility - Union City, NJ

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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Union City, New Jersey, USA

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