Climate and monthly weather forecast
East Brunswick, NJ

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The climate of East Brunswick

Notably, East Brunswick falls under the Köppen climate classification of Cfa, known as a humid subtropical climate with no dry season. It is geographically positioned in the northern hemisphere, with the variability of the weather seen in differences in monthly averages of temperature, rainfall, daylight hours, and wind.

Throughout a year, the city experiences a fluctuating climate with significant temperature variations observed. The highest monthly average temperature of 84.2°F (29°C) occurs in July, while the coolest month is January with an average lowest temperature of 25°F (-3.9°C).

With regards to precipitation, East Brunswick does not have a dry season and precipitation is recorded every month. The maximum registered rainfall within a month is 0.94" (24mm) in July, whereas the month with the least rainfall, 0.28" (7mm), arrives in September.

The highest recorded visibility is consistent throughout the year at 6 miles. As for wind conditions, the city experiences a combination of gentle and moderate breezes with average wind speeds fluctuating between 5.9mph (9.5km/h) to 9.3mph (15km/h).

The best time to visit East Brunswick

Those planning a visit to East Brunswick should consider the months of May to September. During this period, the city experiences its warmest weather, with average high temperatures ranging from 69.4°F (20.8°C) to 84.2°F (29°C). This period also offers a relatively high degree of sunshine, with the longest daylight duration of approximately 15 hours reported in June.

The worst time to visit East Brunswick

Travelers might want to avoid the city during the colder months from November to February. The temperatures during this period can drop significantly, with the lowest recorded in January being 25°F (-3.9°C). Moreover, snowfall occurs on average 3.3 days in January with a snow depth of 0.28" (7mm).

Spring weather in East Brunswick

The climate in East Brunswick during spring is characterized by warming temperatures and increasing rainfall. From March to May, the average high temperatures increase from 47.8°F (8.8°C) to 69.4°F (20.8°C). Meanwhile, the average low temperatures rise from 34.2°F (1.2°C) in March to 54°F (12.2°C) in May. Rainfall levels are on the rise during this season as well, with 0.59" (15mm) registered in March, increasing to 0.75" (19mm) in May.

Summer weather in East Brunswick

Summer in East Brunswick offers the highest temperatures and rainfall. June sees an average high temperature of 77.9°F (25.5°C) whereas July, the warmest month, experiences an average high of 84.2°F (29°C). August also presents high temperatures, with an average high of 82.4°F (28°C). Rainfall in summer ranges from 0.59" (15mm) in June to a peak of 0.94" (24mm) in July.

Autumn weather in East Brunswick

The autumn months in East Brunswick present a mixed bag of climate conditions, with gradually dropping temperatures and variable rainfall. September sees an average high temperature of 75.7°F (24.3°C), dropping to 63.9°F (17.7°C) in October and 52°F (11.1°C) in November. Rainfall during the autumn months starts at a lower level of 0.28" (7mm) in September, before increasing to 0.59" (15mm) in both October and November.

Winter weather in East Brunswick

Winter brings the coldest temperatures of the year to East Brunswick, with average lows dropping below the freezing point from December to February. The coldest month of the year, January, experiences an average high temperature of 37°F (2.8°C) and an average low temperature of 25°F (-3.9°C). Snowfall is also a characteristic of the winter season, with 0.35" (9mm) recorded in December. However, in terms of daylight, winter has the least to offer, with the shortest daylight duration of 9.3 hours reported in December.

Weather in January

Moving into the new year, East Brunswick, New Jersey confronts the chilliest days with high temperatures barely crossing 37°F (2.8°C) and lows dipping to 25°F (-3.9°C). January's landscape remains frosted, frequently waking up to white mornings. Weather in January »

Weather in February

As the last full month of winter takes hold, little variation from January’s weather is noticeable in East Brunswick. However, the city gets a modest boost in daylight hours, suggesting the onset of longer days in the coming weeks. Weather in February »

Weather in March

March signifies the arrival of spring in East Brunswick, ushering in warmer temperatures and an increase in rainfall up to 0.59" (15mm). An increased daylight duration of 12 hours encourages the growth of early spring flowers and trees start to regain their leafy attire. Weather in March »

Weather in April

The shift in weather continues with the arrival of April in New Jersey. Instead of snow flurries, the city gets mild showers, contributing to a cumulative rainfall measuring 0.51" (13mm). Lengthening daylight hours, increasing to 13.3 hours, lend to a brighter urban landscape and extended outdoor adventures. Weather in April »

Weather in May

May marks an important transition towards summer in East Brunswick, reflecting in the abundant daylight and the UV index rising to 6. Maximum temperatures average 69.4°F (20.8°C) making it conducive for beach outings and picnics. Weather in May »

Weather in June

June kicks off the summer season in East Brunswick, New Jersey with an average high temperature of 77.9°F (25.5°C), a gentle rise from May. Balmy days and temperate evenings make June a great month for various outdoor activities including barbecues and swimming. Weather in June »

Weather in July

July proves to be the hottest month in East Brunswick with soaring temperatures peaking at 84.2°F (29°C). Coincidentally, the city faces its highest rainfall of the year at 0.94" (24mm), offering well-timed respite from the sweltering heat. Weather in July »

Weather in August

A heat hangover continues into August but with temperatures reducing slightly to a high of 82.4°F (28°C). East Brunswick’s skies continue to shine bright, boasting the whole month about ten hours of daily sunshine. Summers’ graces begin to recede, with a subtly cooling breeze flowing in the evenings. Weather in August »

Weather in September

September witnesses the beginning of fall in East Brunswick with a welcome drop in temperatures and a slight increase in precipitation. Temperatures range chillier than the summer months, leading to a subtle shift in clothing choices. Weather in September »

Weather in October

October in East Brunswick brings a vibrant array of colors, with crisp fall weather and temperatures dropping further. Mild wind speeds of 7.6mph (12.2km/h) introduce early signs of chill in the air. Social events like pumpkin picking, hot cider sipping, and leaf watching become prevalent. Weather in October »

Weather in November

Wind speeds pick up the pace in November, heightening up to 8.1mph (13km/h) as winter climate begins to emerge in East Brunswick. The transition from fall to winter introduces the first traces of snowfall, a mere sprinkle measuring 0.08" (2mm). Weather in November »

Weather in December

December welcomes the heart of winter in East Brunswick with a considerable rise in snowfall up to 0.35" (9mm). An increased number of cloudy days can be anticipated, reducing the sunshine hours to an average of 4.9 hours per day. Weather in December »

Frequently asked questions

What month is the coldest?

In East Brunswick, the average lowest temperatures are observed in January, with a high of 37°F (2.8°C) and a low of 25°F (-3.9°C).

How many days does it rain?

In East Brunswick, during the entire year, the rain falls for 92.9 days and collects up to 7.32" (186mm) of precipitation.

When does it snow?

Months with snowfall are January through March, November and December.

How many days does it snow?

In East Brunswick, during the entire year, snow falls for 12.7 days and aggregates up to 1.5" (38mm) of snow.

When is the lowest UV index?

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

What is the most humid month?

February, May, October and December, with an average relative humidity of 77%, are most humid months.

What is the month with the least sunshine?

February has the least sunshine of the year, with an average of 4.7h of sunshine.

What is the snowiest month?

The month with the most snowfall is March, when snow falls for 3 days and typically aggregates up to 0.51" (13mm) of snow.

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.

What are the least humid months?

April and August, with an average relative humidity of 73%, are the least humid months in East Brunswick.

When it does not snow?

In East Brunswick, snow does not fall in April through October.

What are the months with the highest UV index in East Brunswick?

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

When are the longest days in East Brunswick?

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

What is the warmest month?

East Brunswick experiences its average highest temperatures in July, reaching a peak of 84.2°F (29°C) and a minimum of 68°F (20°C).

What is the wettest month?

July is the month with the most rainfall in East Brunswick. Rain falls for 10.7 days and accumulates 0.94" (24mm) of precipitation.

What month has the most sunshine?

With an average of 10.5h of sunshine, July has the most sunshine of the year.

What is the driest month?

September is the month with the least rainfall. Rain falls for 7.5 days and accumulates 0.28" (7mm) of precipitation.

What is the month with the shortest days in East Brunswick?

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

Average temperature
East Brunswick, NJ

Average temperature - East Brunswick, NJ

The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (37°F).

The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (25°F).

Average pressure
East Brunswick, NJ

Average pressure - East Brunswick, NJ

The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed
East Brunswick, NJ

Average wind speed - East Brunswick, NJ

The windiest month (with the highest average wind speed) is March (9.3mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).

Average humidity
East Brunswick, NJ

Average humidity - East Brunswick, NJ

The months with the highest relative humidity are February, May, October and December (77%).
The months with the lowest relative humidity are April and August (73%).

Average rainfall
East Brunswick, NJ

Average rainfall - East Brunswick, NJ

The wettest month (with the highest rainfall) is July (0.94").
The driest month (with the least rainfall) is September (0.28").

Average rainfall days
East Brunswick, NJ

Average rainfall days - East Brunswick, NJ

The month with the highest number of rainy days is July (10.7 days).
The months with the least rainy days are January and November (4.8 days).

Average snowfall
East Brunswick, NJ

Average snowfall - East Brunswick, NJ

The month with the highest snowfall is March (0.51").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days
East Brunswick, NJ

Average snowfall days - East Brunswick, NJ

The month with the highest number of snowfall days is February (3.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight / Average sunshine
East Brunswick, NJ

Average daylight / Average sunshine - East Brunswick, NJ

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 30min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

Average sunshine days
East Brunswick, NJ

Average sunshine days - East Brunswick, NJ

The month with the most sunshine days is January (24.2 days).
The month with the least sunshine days is July (15.7 days).

Average UV index
East Brunswick, NJ

Average UV index - East Brunswick, NJ

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

Average cloud cover
East Brunswick, NJ

Average cloud cover - East Brunswick, NJ

The months with the most cloud cover are February, March and December (Cloud cover 48).
The months with the least cloud cover are July and August (Cloud cover 32).

Average visibility
East Brunswick, NJ

Average visibility - East Brunswick, 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).

East Brunswick, New Jersey, USA

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