Climate and monthly weather forecastNew Brunswick, NJ
Climate and monthly weather forecast
The climate of New Brunswick
The city of New Brunswick, nestled in New Jersey, USA, experiences a Humid subtropical climate with no dry season, according to the Köppen climate classification. This description refers to the predominant climate experienced by the city.Over the year, the climate exhibits variations in several parameters. High temperatures fluctuate from a nippy 36.7°F (2.6°C) in January to a summery 84.6°F (29.2°C) in July. The heat mellows down to 82.6°F (28.1°C) in August before the decline resumes, reaching 43°F (6.1°C) by December. Low temperatures echo a similar trend, oscillating from chilly 24.6°F (-4.1°C) in January and peaking at a comfortable 68.2°F (20.1°C) in July, eventually falling back to 31.8°F (-0.1°C) in December.
New Brunswick receives rainfall uniformly throughout the year, with rainfall ranging from a high of 3.27" (83mm) in July to a low of 1.61" (41mm) in September. February, ironically the shortest month, records the highest average number of rainfall days at 14.3 days, while December, on the other hand, records a relatively dry 8.9 days of rain.
One fascinating pattern in the city's annual climate is the conspicuous absence of snowfall from May to October. It is only in the cold months, from November to April, that snowfall graces the city, with January recording the highest snowfall at 3.5" (89mm).
The best time to visit New Brunswick
New Brunswick welcomes its visitors with the best weather between May and August. During these months, temperatures range perfectly between a warm 69.6°F (20.9°C) to 82.6°F (28.1°C) and a comforting low of 53.2°F (11.8°C) to 67.1°F (19.5°C). The sun basks the city for up to 15 hours a day, with maximum sunshine hours of 10.4 in July. Although July also sees the highest rainfall in inches, the regular weather remains favorably warm, making this period ideal for outdoor activities and sightseeing.The worst time to visit New Brunswick
The months to avoid for a visit to New Brunswick would undoubtedly be January and February. The weather during these months demonstrates a high degree of severity with temperatures stooping to a frigid low between 24.6°F (-4.1°C) to 26.4°F (-3.1°C), the lowest in the year. Snowfall is at its highest with averages of 1.57 and 1.89" (48mm) in January and February, respectively. To top it all, these months have the shortest days with daylight not exceeding 10.7 hours.Spring weather in New Brunswick
Spring ushers New Brunswick out of the cold spell, with temperatures gradually climbing from 43°F (6.1°C) in March to 69.6°F (20.9°C) in May. Additionally, low temperatures rise from 33.8°F (1°C) to 53.2°F (11.8°C) during this period. Rainfall sees an uptick, with May receiving the maximum rainfall of 2.8" (71mm). In contrast, daylight hours increase steadily from March's 12 hours to May's 14.4 hours, providing more day-time for outdoor explorations.Summer weather in New Brunswick
Warm temperatures define the summer months in New Brunswick. The high temperature reaches its peak, from 78.3°F (25.7°C) in June, culminating at 84.6°F (29.2°C) in July, before decreasing slightly to 82.6°F (28.1°C) in August. Similarly, the low temperatures hover between 61.9°F (16.6°C) and 68.2°F (20.1°C). In terms of rainfall, July records the highest precipitation at 3.27" (83mm). Despite this, the skies are seldom gloomy, as the city enjoys extended daylight hours and lots of sunshine.Autumn weather in New Brunswick
Autumn presents a shift in the weather pattern of New Brunswick. Temperatures take a downward slide with highs ranging from 75.9°F (24.4°C) in September to 52°F (11.1°C) in November. In the same period, the nighttime low temperatures descend from 59.9°F (15.5°C) to a chilly 38.3°F (3.5°C). Even as the weather cools, the rainfall decreases as well, and November receives the least rainfall in the month at 2.05" (52mm). Thus, Autumn comes with a calm yet cooling weather transition.Winter weather in New Brunswick
Winter in New Brunswick is characterized by cold temperatures and snowfall. Highs dwindle between 52°F (11.1°C) and 36.7°F (2.6°C) from December to February, while lows chill at 31.8°F (-0.1°C) to 24.6°F (-4.1°C). Rainfall mildly fluctuates around 2" (51mm), but it’s the increase in snowfall that truly marks winter, with 3.5" (89mm) of snow in January. These months also see the shortest days, with daylight ranging from 9.3 hours to 10.7 hours. However, there's good news for winter enthusiasts, as New Brunswick in winter offers snow-clad landscapes and vibrant holiday festivities.Weather in January
Despite being the first month of the year, January presents the New Brunswick climate in its coolest splendor. This is defined by temperatures that barely rise above the freezing point coupled with some snowfall. Sunshine dawns on the city for around half the daylight hours offering a welcome respite from the generally cold and cloudy days. Weather in January »Weather in February
February maintains the cold dominance in New Brunswick's weather exhibited in January with slightly warmed up temperatures but it's rainfall takes a slightly northward turn. The latter has made this month known among locals as a period of greater rainfall, indicating the beginning of earlier spring falls. Weather in February »Weather in March
Weather conditions in New Brunswick start to shift dramatically in March. Temperatures invariably begin to rise and, despite the increased rainfall, the snowfall virtually comes to a halt by the month's end. Increasing daylight hours reveal the onset of spring and reflect the transition from the colder months of January and February. Weather in March »Weather in April
With the arrival of April, New Brunswick is replete with warmer temperatures and spring showers. As the city continues to transition into the warmer months, snowfall becomes virtually non-existent. The month provides an extended duration of sunshine, welcoming blooming flora and increased outdoor activities. Weather in April »Weather in May
May’s arrival in New Brunswick heralds the genuine start of the warmer season. The temperature consistently ascends while rainfall becomes frequent but less intense compared to prior months, reducing the possibility of sudden showers. Weather in May »Weather in June
June in New Brunswick brings the dawn of the hot summer season. Weather transitions from warm to hot as this month features the second-highest average temperatures of the year. Despite experiencing fewer rainy days than May, the humidity doesn’t decline considerably, creating often muggy conditions. Weather in June »Weather in July
New Brunswick residents experience the peak of summer heat in July. The hot weather gets more persistent, complemented by clear skies and a high ultraviolet index. While it’s the month with the least percentage of clouds, the humidity remains high making afternoons potentially uncomfortable. Weather in July »Weather in August
August weather in New Brunswick continues the trail of July, carrying forward the intense heat and maintaining the summer's peak. The city experiences the last month of high temperatures before a shift toward the cooler fall temps of September. Weather in August »Weather in September
The transition from sultry summers to pleasant falls occurs in September in New Brunswick. While days are warm, nights begin to cool off and the humidity gradually recedes, offering soothing rainfall. This makes it a comfortable month, particularly until it gives way to a chillier October. Weather in September »Weather in October
October signals the full onset of autumn in New Brunswick, characterized by crisp air and falling leaves. Temperatures begin their steep descent into the cooler side of the yearly temperature spectrum. The city prepares itself for the impending winter as autumn clouds offer picturesque sunset hues. Weather in October »Weather in November
As the penultimate month, November is engulfed by a chilly ambiance in New Brunswick. Steady temperature drops and overcast skies describe the city's transition into its winter phase. Winter's harbinger, the first snow showers might make their appearance towards the month's end. Weather in November »Weather in December
December introduces New Brunswick to the chilly winter season and is the month with the shortest days of the year. The temperature continues to drop, and the city gets wrapped in a winter chill. The first substantial snowfall is likely to occur, setting the stage for the city's traditional white holiday season. Weather in December »Updated: Jul 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
January is New Brunswick's coldest month, registering average high temperatures of 36.7°F (2.6°C) and lows of 24.6°F (-4.1°C).
In New Brunswick, during the entire year, the rain falls for 149.4 days and collects up to 28.43" (722mm) of precipitation.
January through May, November and December are months with snowfall.
Throughout the year, there are 18.3 snowfall days, and 8.46" (215mm) of snow is accumulated.
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2.
February, October and December, with an average relative humidity of 77%, are most humid months.
The month with the least sunshine is February, with an average of 4.6h of sunshine.
The month with the most snowfall is March, when snow falls for 3.9 days and typically aggregates up to 3.5" (89mm) of snow.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in New Brunswick, 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.
The months with the lowest humidity are April and August, with an average relative humidity of 72%.
The months with the highest UV index are May through August, with an average maximum UV index of 6.
In New Brunswick, snow does not fall in June through October.
With an average of 15h and 0min of daylight, June has the longest days of the year.
In New Brunswick, July is the warmest month, with temperatures averaging a high of 84.6°F (29.2°C) and a low of 68.2°F (20.1°C).
The month with the most rainfall is July, when the rain falls for 16.6 days and typically aggregates up to 3.27" (83mm) of precipitation.
The month with the most sunshine is July, with an average of 10.4h of sunshine.
The month with the least rainfall is September, when the rain falls for 12.6 days and typically collects 1.61" (41mm) of precipitation.
With an average of 9h and 18min of daylight, December has the shortest days of the year.
Average temperature
New Brunswick, NJ
The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (36.7°F).
The month with the highest average low temperature is July (68.2°F).
The coldest month (with the lowest average low temperature) is January (24.6°F).
Average pressure
New Brunswick, NJ
- Average pressure in January:
30.07"Hg - Average pressure in February:
30.04"Hg - Average pressure in March:
30.06"Hg - Average pressure in April:
29.98"Hg - Average pressure in May:
30.01"Hg - Average pressure in June:
29.93"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30.05"Hg - Average pressure in October:
30.02"Hg - Average pressure in November:
30.11"Hg - Average pressure in December:
30.08"Hg
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
New Brunswick, NJ
- Average wind speed in January:
8.9mph - Average wind speed in February:
8.9mph - Average wind speed in March:
9.1mph - Average wind speed in April:
8.8mph - Average wind speed in May:
7.2mph - Average wind speed in June:
6.6mph
- Average wind speed in July:
5.9mph - Average wind speed in August:
5.9mph - Average wind speed in September:
6.4mph - Average wind speed in October:
7.5mph - Average wind speed in November:
8mph - Average wind speed in December:
8.3mph
The windiest month (with the highest average wind speed) is March (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.9mph).
Average humidity
New Brunswick, NJ
The months with the highest relative humidity are February, October and December (77%).
The months with the lowest relative humidity are April and August (72%).
Average rainfall
New Brunswick, NJ
- Average rainfall in January:
1.73" - Average rainfall in February:
1.85" - Average rainfall in March:
2.56" - Average rainfall in April:
2.2" - Average rainfall in May:
2.8" - Average rainfall in June:
2.36"
- Average rainfall in July:
3.27" - Average rainfall in August:
2.91" - Average rainfall in September:
1.61" - Average rainfall in October:
2.24" - Average rainfall in November:
2.05" - Average rainfall in December:
2.83"
The wettest month (with the highest rainfall) is July (3.27").
The driest month (with the least rainfall) is September (1.61").
Average rainfall days
New Brunswick, NJ
- Average rainfall days in January:
7.9 days - Average rainfall days in February:
8.5 days - Average rainfall days in March:
11.5 days - Average rainfall days in April:
14.3 days - Average rainfall days in May:
16.3 days - Average rainfall days in June:
15.3 days
- Average rainfall days in July:
16.6 days - Average rainfall days in August:
15.2 days - Average rainfall days in September:
12.6 days - Average rainfall days in October:
12.1 days - Average rainfall days in November:
8.9 days - Average rainfall days in December:
10.2 days
The month with the highest number of rainy days is July (16.6 days).
The month with the least rainy days is January (7.9 days).
Average snowfall
New Brunswick, NJ
The month with the highest snowfall is March (3.5").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days
New Brunswick, NJ
- Average snowfall days in January:
5.4 days - Average snowfall days in February:
5.2 days - Average snowfall days in March:
3.9 days - Average snowfall days in April:
0.2 days - Average snowfall days in May:
0.1 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0.6 days - Average snowfall days in December:
2.9 days
The month with the highest number of snowfall days is January (5.4 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight / Average sunshine
New Brunswick, NJ
- Average daylight in January:
9h and 42min - Average daylight in February:
10h and 42min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 18min - Average daylight in May:
14h and 24min - Average daylight in June:
15h and 0min
- Average daylight in July:
14h and 42min - Average daylight in August:
13h and 42min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 6min - Average daylight in November:
9h and 54min - Average daylight in December:
9h and 18min
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).
- Average sunshine in January:
5h and 0min - Average sunshine in February:
4h and 36min - Average sunshine in March:
6h and 12min - Average sunshine in April:
8h and 6min - Average sunshine in May:
8h and 24min - Average sunshine in June:
9h and 30min
- Average sunshine in July:
10h and 24min - Average sunshine in August:
9h and 54min - Average sunshine in September:
8h and 30min - Average sunshine in October:
5h and 30min - Average sunshine in November:
5h and 30min - Average sunshine in December:
4h and 48min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days
New Brunswick, NJ
- Average sunshine days in January:
18.6 days - Average sunshine days in February:
15.3 days - Average sunshine days in March:
16.1 days - Average sunshine days in April:
14.1 days - Average sunshine days in May:
12.4 days - Average sunshine days in June:
12.8 days
- Average sunshine days in July:
11.1 days - Average sunshine days in August:
12.9 days - Average sunshine days in September:
15 days - Average sunshine days in October:
17.5 days - Average sunshine days in November:
19.9 days - Average sunshine days in December:
18.5 days
The month with the most sunshine days is November (19.9 days).
The month with the least sunshine days is July (11.1 days).
Average UV index
New 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
New Brunswick, NJ
The months with the most cloud cover are February, March and December (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility
New Brunswick, NJ
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
