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Contents
- 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 daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, like December, in Dunellen, New Jersey, is another cold winter month, with temperature in the range of an average low of 23.2°F (-4.9°C) and an average high of 35.6°F (2°C). With average high temperatures of 35.6°F (2°C) and lows of 23.2°F (-4.9°C), January is the coldest month. Weather in January »
Weather in February
The last month of the winter, February, is another cold month in Dunellen, New Jersey, with an average temperature fluctuating between 25.2°F (-3.8°C) and 39°F (3.9°C). The arrival of February brings an average high-temperature of a still wintry 39°F (3.9°C), subtly diverging from January's 35.6°F (2°C). Weather in February »
Weather in March
The first month of the spring, March, is a frosty month in Dunellen, New Jersey, with an average temperature ranging between max 47.1°F (8.4°C) and min 32.5°F (0.3°C). As February transitions into March, a subtle temperature shift is observed, with average highs adjusting from an icy 39°F (3.9°C) to a frosty 47.1°F (8.4°C). Weather in March »
Weather in April
April in Dunellen, New Jersey, is a mild spring month, with an average temperature ranging between min 42.8°F (6°C) and max 59.5°F (15.3°C). Dunellen in April sees a temperature change, with average high-temperatures moving from a frosty 47.1°F (8.4°C) in March to a mild 59.5°F (15.3°C). Weather in April »
Weather in May
May, the last month of the spring in Dunellen, is a pleasant month, with an average temperature ranging between min 52.5°F (11.4°C) and max 70.2°F (21.2°C). With the arrival of May, the average high-temperature transitions from a mild 59.5°F (15.3°C) in April to a pleasant 70.2°F (21.2°C). Weather in May »
Weather in June
The first month of the summer, June, is a moderately hot month in Dunellen, New Jersey, with an average temperature ranging between min 60.4°F (15.8°C) and max 78.1°F (25.6°C). The shift into June is marked by a modest rise in the average high-temperature, moving from May's agreeable 70.2°F (21.2°C) to a moderately hot 78.1°F (25.6°C). Weather in June »
Weather in July
July, like June, in Dunellen, New Jersey, is a moderately hot summer month, with an average temperature fluctuating between 66.6°F (19.2°C) and 84.4°F (29.1°C). Dunellen experiences its highest average temperatures in July, reaching a peak of 84.4°F (29.1°C) and a minimum of 66.6°F (19.2°C). July's average heat index is calculated to be a hot 93.2°F (34°C). Weather in July »
Weather in August
August, the last month of the summer in Dunellen, is also a moderately hot month, with temperature in the range of an average high of 82.6°F (28.1°C) and an average low of 65.3°F (18.5°C). In August, Dunellen notes an average high-temperature of a still warm 82.6°F (28.1°C), hardly different from the preceding month. Weather in August »
Weather in September
The first month of the autumn, September, is still a warm month in Dunellen, New Jersey, with temperature in the range of an average high of 75.4°F (24.1°C) and an average low of 58.5°F (14.7°C). The average high-temperature slightly decreases in September, shifting from a warm 82.6°F (28.1°C) in August to a still moderately hot 75.4°F (24.1°C). Weather in September »
Weather in October
October, the same as September, is another refreshing autumn month in Dunellen, New Jersey, with an average temperature ranging between max 63°F (17.2°C) and min 48.6°F (9.2°C). A shift in Dunellen's weather is observed as September turns into October, with the average high temperature reducing from a moderately hot 75.4°F (24.1°C) to an enjoyable 63°F (17.2°C). Weather in October »
Weather in November
November, the last month of the autumn in Dunellen, is another cool month, with temperature in the range of an average high of 50.9°F (10.5°C) and an average low of 37.4°F (3°C). The onset of November coincides with a reduction in the average high-temperature, falling from an enjoyable 63°F (17.2°C) in October to a fresh 50.9°F (10.5°C). Weather in November »
Weather in December
December, the first month of the winter in Dunellen, is also a wintry month, with an average temperature fluctuating between 41.9°F (5.5°C) and 30.7°F (-0.7°C). Welcoming December, Dunellen observes a shift in the average high-temperature, falling from November's cool 50.9°F (10.5°C) to an icy 41.9°F (5.5°C). Weather in December »
Updated: Aug 30, 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 time of the year is the coldest in Dunellen?
In Dunellen, January registers the lowest temperatures, averaging 35.6°F (2°C) at the peak and 23.2°F (-4.9°C) at the lowest.
How many days does it rain?
Throughout the year, there are 155.4 rainfall days, and 31.18" (792mm) of precipitation is accumulated.
When does it snow in Dunellen?
January through May, October through December are months with snowfall.
How many days does it snow?
In Dunellen, during the entire year, snow falls for 26.7 days and aggregates up to 12.68" (322mm) of snow.
When is the lowest UV index?
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2.
What is the most humid month?
The most humid month is February, with an average relative humidity of 79%.
What is the month with the least sunshine?
The month with the least sunshine is February, with an average of 4.6h of sunshine.
What is the snowiest month?
The month with the most snowfall is March, when snow falls for 5.6 days and typically aggregates up to 4.06" (103mm) 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 is the least humid month?
April and August, with an average relative humidity of 73%, are the least humid months.
When it does not snow?
June through September are months without snowfall.
When are the longest days?
June has the longest days of the year in Dunellen, with an average of 15h and 0min of daylight.
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 month is the hottest?
July proves to be the warmest month, recording an average peak temperature of 84.4°F (29.1°C) and a minimum temperature of 66.6°F (19.2°C).
What month has the most sunshine?
July has the most sunshine of the year, with an average of 10.3h of sunshine.
What is the driest month?
The month with the least rainfall is September, when the rain falls for 12 days and typically collects 1.57" (40mm) of precipitation.
What is the wettest month?
December is the month with the most rainfall. Rain falls for 10.5 days and accumulates 3.31" (84mm) of precipitation.
What is the month with the shortest days?
The month with the shortest days is December, with an average of 9h and 18min of daylight.
Average temperature
Dunellen, NJ
The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (35.6°F).
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (23.2°F).
Average pressure
Dunellen, 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:
30.06"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
Dunellen, NJ
- Average wind speed in January:
8.4mph - Average wind speed in February:
8.4mph - Average wind speed in March:
8.6mph - Average wind speed in April:
8.3mph - Average wind speed in May:
6.8mph - Average wind speed in June:
6.3mph
- Average wind speed in July:
5.5mph - Average wind speed in August:
5.5mph - Average wind speed in September:
6mph - Average wind speed in October:
7mph - Average wind speed in November:
7.3mph - Average wind speed in December:
7.8mph
The windiest month (with the highest average wind speed) is March (8.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity
Dunellen, NJ
The month with the highest relative humidity is February (79%).
The months with the lowest relative humidity are April and August (73%).
Average rainfall
Dunellen, NJ
- Average rainfall in January:
2.17" - Average rainfall in February:
2.17" - Average rainfall in March:
2.83" - Average rainfall in April:
2.72" - Average rainfall in May:
2.99" - Average rainfall in June:
2.52"
- Average rainfall in July:
3.03" - Average rainfall in August:
2.52" - Average rainfall in September:
1.57" - Average rainfall in October:
2.95" - Average rainfall in November:
2.4" - Average rainfall in December:
3.31"
The wettest month (with the highest rainfall) is December (3.31").
The driest month (with the least rainfall) is September (1.57").
Average rainfall days
Dunellen, NJ
- Average rainfall days in January:
8.4 days - Average rainfall days in February:
10.1 days - Average rainfall days in March:
12 days - Average rainfall days in April:
15.9 days - Average rainfall days in May:
17.5 days - Average rainfall days in June:
15.7 days
- Average rainfall days in July:
16.4 days - Average rainfall days in August:
14.4 days - Average rainfall days in September:
12 days - Average rainfall days in October:
13 days - Average rainfall days in November:
9.5 days - Average rainfall days in December:
10.5 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (8.4 days).
Average snowfall
Dunellen, NJ
- Average snowfall in January:
2.48" - Average snowfall in February:
2.91" - Average snowfall in March:
4.06" - Average snowfall in April:
0.28" - Average snowfall in May:
0.24" - Average snowfall in June:
0"
The month with the highest snowfall is March (4.06").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Dunellen, NJ
- Average snowfall days in January:
7.8 days - Average snowfall days in February:
7 days - Average snowfall days in March:
5.6 days - Average snowfall days in April:
0.7 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:
0.1 days - Average snowfall days in November:
1.1 days - Average snowfall days in December:
4.3 days
The month with the highest number of snowfall days is January (7.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Dunellen, 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 3min - 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 0min - Average sunshine in February:
4h and 4min - Average sunshine in March:
6h and 1min - Average sunshine in April:
8h and 0min - Average sunshine in May:
8h and 2min - Average sunshine in June:
9h and 3min
- Average sunshine in July:
10h and 2min - Average sunshine in August:
9h and 5min - Average sunshine in September:
8h and 3min - 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 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days
Dunellen, NJ
- Average sunshine days in January:
17.8 days - Average sunshine days in February:
13.3 days - Average sunshine days in March:
14.1 days - Average sunshine days in April:
12.1 days - Average sunshine days in May:
11.6 days - Average sunshine days in June:
12.4 days
- Average sunshine days in July:
13.1 days - Average sunshine days in August:
14.1 days - Average sunshine days in September:
16.3 days - Average sunshine days in October:
16.3 days - Average sunshine days in November:
18.4 days - Average sunshine days in December:
16.8 days
The month with the most sunshine days is November (18.4 days).
The month with the least sunshine days is May (11.6 days).
Average UV index
Dunellen, 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
Dunellen, 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 34).
Average visibility
Dunellen, NJ
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
Dunellen, New Jersey, USA
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