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Contents
- The climate of Perth Amboy
- The best time to visit Perth Amboy
- The worst time to visit Perth Amboy
- Spring weather in Perth Amboy
- Summer weather in Perth Amboy
- Autumn weather in Perth Amboy
- Winter weather in Perth Amboy
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average sea temperature
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
A scenic panorama of Perth Amboy Town in New Jersey, with the bright neon lights as the sun sets behind the colorful and heavy cloudy sky above
The climate of Perth Amboy
Perth Amboy, nestled in New Jersey, USA, experiences a Humid subtropical climate, often denoted as 'Cfa' under the Köppen climate classification. This climate category indicates the absence of a dry season, resulting in uniformly distributed precipitation in the city throughout the year.
Monthly average temperatures fluctuate between 25.9°F (-3.4°C) to 82.8°F (28.2°C), with July witnessing the highest temperatures. Meanwhile, the coldest month, January, registers temperatures from 25.9°F (-3.4°C) to 36.9°F (2.7°C). The relative humidity stays fairly consistent, oscillating between 73% and 77% over the year. Rainfall varies each month, with July seeing the maximum with 3.31" (84mm) and September the least with 1.81" (46mm). Snowfall is prevalent from January to March and again in December, but the rest of the year is devoid of snowfall days.
Unique weather patterns include maximum daylight hours in June, at 15 hours, and the shortest in December, at 9.3 hours. The city's maximum sunshine hours, 10.6 hours, can be expected in July with the lowest sunshine, 4.9 hours, in December.
Monthly average temperatures fluctuate between 25.9°F (-3.4°C) to 82.8°F (28.2°C), with July witnessing the highest temperatures. Meanwhile, the coldest month, January, registers temperatures from 25.9°F (-3.4°C) to 36.9°F (2.7°C). The relative humidity stays fairly consistent, oscillating between 73% and 77% over the year. Rainfall varies each month, with July seeing the maximum with 3.31" (84mm) and September the least with 1.81" (46mm). Snowfall is prevalent from January to March and again in December, but the rest of the year is devoid of snowfall days.
Unique weather patterns include maximum daylight hours in June, at 15 hours, and the shortest in December, at 9.3 hours. The city's maximum sunshine hours, 10.6 hours, can be expected in July with the lowest sunshine, 4.9 hours, in December.
The best time to visit Perth Amboy
Summer constitutes the best time to visit Perth Amboy. The pleasant weather from June to August frames this period, with average high temperatures from 75°F (23.9°C) to 82.8°F (28.2°C) and average low temperatures from 62.8°F (17.1°C) to 69.4°F (20.8°C). Extended daylight hours, up to 15 in June, provide ample time for sightseeing and outdoor activities. Despite some rainfall, clear skies and the city's longest sunshine durations make summer a visitor's delight. Plus, summer allows for warmer sea temperatures, climbing from 64.5°F (18.1°C) in June to a comfortable 74.1°F (23.4°C) in August.
The worst time to visit Perth Amboy
Winter, from December to February, tends to deter visitors, inundated with low temperatures, diminished daylight, and prevalent snowfall. The city experiences temperatures from 25.9°F (-3.4°C) to 39.7°F (4.3°C) during these months. Daylight hours are short, from 9.3 hours in December to mere 10.7 hours in February. Both rain and snowfall often occur, distracting from what could potentially be a serene snow-coated cityscape. The cold sea temperatures, dipping to a low of 39.7°F (4.3°C) in February, further discourage sea-related activities, making it a less favorable time for tourists.
Spring weather in Perth Amboy
Spring, from March to May, brings a drastic change from the icy winters. Average high temperatures escalate from 46.9°F (8.3°C) in March to 67.8°F (19.9°C) in May, whereas minimum temperatures rise from 34.7°F (1.5°C) to 54.1°F (12.3°C). Rainfall increases during this season, reaching its peak in May with 2.99" (76mm). While snowfall days gradually fade out in March, March witnesses the highest snowfall amount with 3.39" (86mm). This transitional season, with extended daylight and sunshine hours, offers a refreshing and delightful experience in Perth Amboy.
Summer weather in Perth Amboy
Summer, from June to August, sees temperatures between 67.8°F (19.9°C) to 82.8°F (28.2°C), which are the highest recorded in the year. Rainfall lasts throughout the summer months, reaching a high of 3.31" (84mm) in July. Wind speeds generally remain low, varying from 6,6mph (9.7km/h) in June to 6.7mph (10.8km/h) in August. Perhaps the season's distinctive feature is the lengthy hours of daylight, reaching up to 15 hours, and an average of approximately 10 hours of daily sunshine. This combination of warm temperatures and plentiful sunshine makes summer in Perth Amboy absolutely delightful.
Autumn weather in Perth Amboy
Autumn ushers in from September to November, with temperatures steadily dipping from 75°F (23.9°C) in September to 52°F (11.1°C) in November. The minimum temperature see a similar trend, dropping from 61.9°F (16.6°C) to 40.3°F (4.6°C) within the same period. Despite rainfall reduction in September, it sees an upturn in October and November, with November recording 2.4" (61mm). The days become gradually shorter, and the city's sunshine hours drop to about 5.5 hours in November, signifying the transition into winter.
Winter weather in Perth Amboy
Winter in Perth Amboy, spanning December to February, is distinguished by subdued temperatures, limited daylight, and persistent snowfall. Average temperatures are between 25.9°F (-3.4°C) to 39.7°F (4.3°C), and the city sees an average of 5.8 days of snowfall in December, and up to 3.7 in February. Rainfall accompanies the snow during these months. Despite the gloomy weather, the city manages to maintain an average visibility of 6 miles. Winter in Perth Amboy may not be ideal for outdoor activities, yet its winter wonderland charm cannot be completely dismissed.
Weather in January
January's weather in Perth Amboy, New Jersey, sees cooler temperatures and an occasional snowfall. The average highest temperature recorded in this month is 36.9°F (2.7°C), while the lowest temperature tends to hover around 25.9°F (-3.4°C). Weather in January »
Weather in February
The weather patterns observed in February are notably similar to January, with cold temperatures continuing into this month. Frosty weather is common, accompanied by temperatures fluctuating between 27.9°F (-2.3°C) and 39.7°F (4.3°C). Weather in February »
Weather in March
As winter departs, Perth Amboy, New Jersey, enters the brisk season of March. Winter weather gradually gives way to milder temperatures, with the city experiencing an average high temperature of 46.9°F (8.3°C) and a low of 34.7°F (1.5°C). Weather in March »
Weather in April
April weather in Perth Amboy, New Jersey, is characterized by a significant warming trend with higher highs and more moderate lows. The temperature varies between 44.6°F (7°C) and 58.1°F (14.5°C) highlighting a noticeable shift towards spring. Weather in April »
Weather in May
May weather in Perth Amboy, New Jersey, sits comfortably on the cusp of spring and summer. Warmer temperatures are the norm, temperatures escalating to an average high of 67.8°F (19.9°C) and a low around 54.1°F (12.3°C). This month ushers in a period of more consistent, warm weather with longer daylight hours. Weather in May »
Weather in June
June in Perth Amboy, New Jersey, marks the beginning of summer with longer daylight hours and a warmer climate. No extreme temperature shifts occur in this month, with figures oscillating between 62.8°F (17.1°C) and 76.6°F (24.8°C). Weather in June »
Weather in July
July's weather in Perth Amboy, New Jersey, experiences the peak of summer with the highest temperature averages of the year. July endures the highest average temperatures, climbing to 82.8°F (28.2°C) and not dropping below 69.4°F (20.8°C), besting the temperature averages of preceding months. Weather in July »
Weather in August
The traditional summer weather continues into August in Perth Amboy, New Jersey. Temperatures fluctuate slightly compared to July, spanning from 68.5°F (20.3°C) to 81.3°F (27.4°C). August is characterized by hot and humid days, with the sea temperature hitting its peak, making it ideal for water activities. Weather in August »
Weather in September
September in Perth Amboy, New Jersey witnesses a gradual transition from summer to fall. The changing season brings cooler temperatures, dropping to an average low of 61.9°F (16.6°C) and high reaching 75°F (23.9°C). September is characterized by shorter daylight hours and a decrease in humidity. Weather in September »
Weather in October
October heralds the arrival of fall in Perth Amboy, New Jersey, bringing noticeably cooler days and crisp evenings. The average temperature oscillation is between 51.4°F (10.8°C) and 63.5°F (17.5°C). The falling leaves and cooler climate pave the way for traditional autumn activities such as pumpkin picking and scenic drives. Weather in October »
Weather in November
November in Perth Amboy, New Jersey, brings more pronounced autumnal weather with colder temperatures and shorter daylight hours. Notably cooler conditions arrive, with temperatures recording a low of 40.3°F (4.6°C) and a high of 52°F (11.1°C). Weather in November »
Weather in December
In December, Perth Amboy, New Jersey gets a snowy welcome to winter, and colder temperatures prevail. December witnesses a drop in temperature, falling to a mere 33.4°F (0.8°C) at its lowest and not crossing the average of 43.3°F (6.3°C) at its highest. Weather in December »
Updated: Jun 26, 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
What is the coldest month?
January is the coldest month, exhibiting average temperatures of 36.9°F (2.7°C) at the peak and 25.9°F (-3.4°C) at the base.
How much does it rain?
In Perth Amboy, during the entire year, the rain falls for 157.5 days and collects up to 31.42" (798mm) of precipitation.
When does it snow?
January through April, October through December are months with snowfall.
How much does it snow?
In Perth Amboy, during the entire year, snow falls for 19.5 days and aggregates up to 8.35" (212mm) 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 are the most humid months?
The months with the highest humidity are February and May, with an average relative humidity of 77%.
What is the month with the coldest ocean?
February is the month with the coldest seawater, with an average ocean temperature of 39.7°F (4.3°C).
What is the month with the least sunshine?
The month with the least sunshine is February, with an average of 4.7h of sunshine.
What is the least humid month?
March, April, August and November, with an average relative humidity of 73%, are the least humid months.
When does it snow the most?
The month with the most snowfall is March, when snow falls for 3.7 days and typically aggregates up to 3.39" (86mm) 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.
When it does not snow?
In Perth Amboy, snow does not fall in May through September.
When are the longest days?
With an average of 15h and 0min of daylight, June has the longest days of the year.
When is the highest UV index?
June through August, with an average maximum UV index of 6, are months with the highest UV index.
What time of the year is the hottest?
Perth Amboy's July weather, marked by an average high temperature of 82.8°F (28.2°C) and an average low temperature of 69.4°F (20.8°C), is the warmest in the year.
What is the wettest month?
The wettest months are July and December, with an average 3.31" (84mm) of rainfall.
What month has the most sunshine?
The month with the most sunshine is July, with an average of 10.6h of sunshine.
When is the ocean warmest?
The month with the warmest seawater is August, with an average ocean temperature of 74.1°F (23.4°C).
What is the driest month?
September is the month with the least rainfall. Rain falls for 12.8 days and accumulates 1.81" (46mm) of precipitation.
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
Perth Amboy, NJ
The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (36.9°F).
The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (25.9°F).
Average pressure
Perth Amboy, 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
Perth Amboy, NJ
- Average wind speed in January:
10.2mph - Average wind speed in February:
9.9mph - Average wind speed in March:
10.1mph - Average wind speed in April:
9.4mph - Average wind speed in May:
7.8mph - Average wind speed in June:
7.2mph
- Average wind speed in July:
6.6mph - Average wind speed in August:
6.7mph - Average wind speed in September:
7.3mph - Average wind speed in October:
8.7mph - Average wind speed in November:
9.2mph - Average wind speed in December:
9.6mph
The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).
Average humidity
Perth Amboy, NJ
The months with the highest relative humidity are February and May (77%).
The months with the lowest relative humidity are March, April, August and November (73%).
Average rainfall
Perth Amboy, NJ
- Average rainfall in January:
2.01" - Average rainfall in February:
2.24" - Average rainfall in March:
2.76" - Average rainfall in April:
2.36" - Average rainfall in May:
2.99" - Average rainfall in June:
2.48"
- Average rainfall in July:
3.31" - Average rainfall in August:
2.91" - Average rainfall in September:
1.81" - Average rainfall in October:
2.83" - Average rainfall in November:
2.4" - Average rainfall in December:
3.31"
The wettest months (with the highest rainfall) are July and December (3.31").
The driest month (with the least rainfall) is September (1.81").
Average rainfall days
Perth Amboy, NJ
- Average rainfall days in January:
9.3 days - Average rainfall days in February:
9.8 days - Average rainfall days in March:
12.8 days - Average rainfall days in April:
15.3 days - Average rainfall days in May:
15.4 days - Average rainfall days in June:
15.8 days
- Average rainfall days in July:
16.2 days - Average rainfall days in August:
15.4 days - Average rainfall days in September:
12.8 days - Average rainfall days in October:
13.4 days - Average rainfall days in November:
9.8 days - Average rainfall days in December:
11.5 days
The month with the highest number of rainy days is July (16.2 days).
The month with the least rainy days is January (9.3 days).
Average snowfall
Perth Amboy, NJ
The month with the highest snowfall is March (3.39").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Perth Amboy, NJ
- Average snowfall days in January:
5.8 days - Average snowfall days in February:
5.4 days - Average snowfall days in March:
3.7 days - Average snowfall days in April:
0.3 days - Average snowfall days in May:
0 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:
0.1 days - Average snowfall days in November:
0.8 days - Average snowfall days in December:
3.4 days
The month with the highest number of snowfall days is January (5.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average sea temperature
Perth Amboy, NJ
The best month for swimming (with the highest average sea temperature) is August (74.1°F).
The coldest month (with the lowest average sea temperature) is February (39.7°F).
Average daylight / Average sunshine
Perth Amboy, NJ
- Average daylight in January:
9h and 4min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 3min - Average daylight in June:
15h and 0min
- Average daylight in July:
14h and 4min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
9h and 5min - Average daylight in December:
9h and 2min
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 1min - Average sunshine in February:
4h and 4min - Average sunshine in March:
6h and 2min - Average sunshine in April:
8h and 2min - Average sunshine in May:
8h and 4min - Average sunshine in June:
9h and 5min
- Average sunshine in July:
10h and 4min - Average sunshine in August:
10h and 2min - Average sunshine in September:
8h and 4min - Average sunshine in October:
5h and 4min - Average sunshine in November:
5h and 3min - Average sunshine in December:
4h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days
Perth Amboy, NJ
- Average sunshine days in January:
17.3 days - Average sunshine days in February:
13.7 days - Average sunshine days in March:
14.8 days - Average sunshine days in April:
13 days - Average sunshine days in May:
13.9 days - Average sunshine days in June:
12.2 days
- Average sunshine days in July:
12.6 days - Average sunshine days in August:
13.7 days - Average sunshine days in September:
15.2 days - Average sunshine days in October:
15.9 days - Average sunshine days in November:
18.2 days - Average sunshine days in December:
15.8 days
The month with the most sunshine days is November (18.2 days).
The month with the least sunshine days is June (12.2 days).
Average UV index
Perth Amboy, 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).
Average cloud cover
Perth Amboy, NJ
The months with the most cloud cover are February, March and December (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility
Perth Amboy, 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).
Perth Amboy, New Jersey, USA
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