Monthly weather forecast and climate
Plainfield, NJ

Weather in January

January, the same as December, is another cold winter month in Plainfield, New Jersey, with average temperature varying between 23.9°F (-4.5°C) and 36°F (2.2°C). With an average high-temperature of 36°F (2.2°C) and an average low-temperature of 23.9°F (-4.5°C), January is the coldest month. Weather in January »

Weather in February

February, the last month of the winter, in Plainfield, is also a wintry month, with average temperature fluctuating between 25.7°F (-3.5°C) and 39.2°F (4°C). In Plainfield, the average high-temperature in February is essentially the same as in January - a still wintry 39.2°F (4°C). Weather in February »

Weather in March

The first month of the spring, March, is a chilly month in Plainfield, New Jersey, with average temperature ranging between max 47.3°F (8.5°C) and min 32.9°F (0.5°C). In March, the average high-temperature marginally rises, from a cold 39.2°F (4°C) in February, to a frosty 47.3°F (8.5°C). Weather in March »

Weather in April

April in Plainfield, New Jersey, is a mild spring month, with average temperature ranging between min 43.3°F (6.3°C) and max 59°F (15°C). In Plainfield, the average high-temperature increases, from a frosty 47.3°F (8.5°C) in March, to a mild 59°F (15°C). Weather in April »

Weather in May

The last month of the spring, May, is a pleasant month in Plainfield, New Jersey, with temperature in the range of an average low of 52.9°F (11.6°C) and an average high of 69.3°F (20.7°C). In May, the average high-temperature rises, from a moderate 59°F (15°C) in April, to an agreeable 69.3°F (20.7°C). Weather in May »

Weather in June

The first month of the summer, June, is a moderately hot month in Plainfield, New Jersey, with average temperature fluctuating between 77.5°F (25.3°C) and 60.6°F (15.9°C). In Plainfield, the average high-temperature slightly increases, from an agreeable 69.3°F (20.7°C) in May, to a warm 77.5°F (25.3°C). Weather in June »

Weather in July

July, like June, in Plainfield, New Jersey, is another warm summer month, with average temperature varying between 84.2°F (29°C) and 67.5°F (19.7°C). July is the warmest month, with an average high-temperature of 84.2°F (29°C) and an average low-temperature of 67.5°F (19.7°C). The average heat index is evaluated at a hot 92.3°F (33.5°C). Weather in July »

Weather in August

August, the last month of the summer, in Plainfield, is also a moderately hot month, with average temperature varying between 82°F (27.8°C) and 66.2°F (19°C). In August, the average high-temperature is practically the same as in July - a still moderately hot 82°F (27.8°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a warm month in Plainfield, New Jersey, with average temperature fluctuating between 59.4°F (15.2°C) and 75.4°F (24.1°C). In Plainfield, New Jersey, the average high-temperature in September marginally drops, from a warm 82°F (27.8°C) in August, to a still moderately hot 75.4°F (24.1°C). Weather in September »

Weather in October

October, like September, in Plainfield, New Jersey, is another enjoyable autumn month, with average temperature ranging between max 63.1°F (17.3°C) and min 49.1°F (9.5°C). In Plainfield, the average high-temperature drops, from a moderately hot 75.4°F (24.1°C) in September, to a comfortable 63.1°F (17.3°C). Weather in October »

Weather in November

November, the last month of the autumn, in Plainfield, is another cool month, with temperature in the range of an average low of 38.1°F (3.4°C) and an average high of 51.1°F (10.6°C). In Plainfield, the average high-temperature decreases, from a comfortable 63.1°F (17.3°C) in October, to a cool 51.1°F (10.6°C). Weather in November »

Weather in December

December, the first month of the winter, in Plainfield, is also a wintry month, with average temperature varying between 42.3°F (5.7°C) and 31.1°F (-0.5°C). In December, the average high-temperature slightly decreases, from a cool 51.1°F (10.6°C) in November, to a cold 42.3°F (5.7°C). Weather in December »
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FAQ

What is the coldest month in Plainfield?

The coldest month in Plainfield is January, with an average high-temperature of 36°F (2.2°C) and an average low-temperature of 23.9°F (-4.5°C).

How many days does it rain in Plainfield?

Throughout the year, there are 160.7 rainfall days, and 30.12" (765mm) of precipitation is accumulated.

When does it snow in Plainfield?

January through May, October through December are months with snowfall in Plainfield, New Jersey.

How much does it snow in Plainfield?

In Plainfield, during the entire year, snow falls for 25.4 days, and aggregates up to 10.31" (262mm) of snow.

What are the months with the lowest UV index in Plainfield?

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

What are the most humid months in Plainfield?

February, October and December, with an average relative humidity of 78%, are most humid months.

What is the month with the least sunshine in Plainfield?

February has the least sunshine of the year in Plainfield, New Jersey, with an average of 4.6h of sunshine.

When does it snow the most in Plainfield?

The month with the most snowfall in Plainfield is March when snow falls for 5 days and typically aggregates up to 3.23" (82mm) of snow.

What is the least humid month in Plainfield?

Months with the lowest humidity in Plainfield, New Jersey, are April and August, with an average relative humidity of 73%.

When it does not snow in Plainfield?

In Plainfield snow does not fall in June through September.

When are the longest days in Plainfield?

June has the longest days of the year in Plainfield, New Jersey, with an average of 15h of daylight.

What are the months with the highest UV index in Plainfield?

Months with the highest UV index are June through August, with an average maximum UV index of 6.

What is the warmest month in Plainfield?

With an average high-temperature of 84.2°F (29°C) and an average low-temperature of 67.5°F (19.7°C), July is the warmest month in Plainfield.

What month has the most sunshine in Plainfield?

The month with the most sunshine is July, with an average of 10.5h of sunshine.

What is the driest month in Plainfield?

September is the month with the least rainfall in Plainfield. Rain falls for 12.9 days and accumulates 1.69" (43mm) of precipitation.

What is the rainiest month in Plainfield?

The month with the most rainfall is December when the rain falls for 11.5 days and typically aggregates up to 3.19" (81mm) of precipitation.

What is the month with the shortest days in Plainfield?

The month with the shortest days is December, with an average of 9.3h of daylight.

Average temperature
Plainfield, NJ

Average temperature - Plainfield, 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 (36°F).

The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (23.9°F).

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Average pressure
Plainfield, NJ

Average pressure - Plainfield, NJ

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

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Average wind speed
Plainfield, NJ

Average wind speed - Plainfield, NJ

The windiest month (with the highest average wind speed) is March (8.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).

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Average humidity
Plainfield, NJ

Average humidity - Plainfield, NJ

Months with the highest relative humidity are February, October and December (78%).
Months with the lowest relative humidity are April and August (73%).

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Average rainfall
Plainfield, NJ

Average rainfall - Plainfield, NJ

The wettest month (with the highest rainfall) is December (3.19").
The driest month (with the least rainfall) is September (1.69").

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Average rainfall days
Plainfield, NJ

Average rainfall days - Plainfield, NJ

The month with the highest number of rainy days is July (16.5 days).
The month with the least rainy days is January (9.5 days).

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Average snowfall
Plainfield, NJ

Average snowfall - Plainfield, NJ

The month with the highest snowfall is March (3.23").
Months with the least snowfall are June, July, August and September (0").

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Average snowfall days
Plainfield, NJ

Average snowfall days - Plainfield, NJ

Months with the highest number of snowfall days are January and February (7.3 days).
Months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
Plainfield, NJ

Average daylight / Average sunshine - Plainfield, NJ

The month with the longest days is June (Average daylight: 15h).
The month with the shortest days is December (Average daylight: 9.3h).

The month with the most sunshine is July (Average sunshine: 10.5h).
The month with the least sunshine is February (Average sunshine: 4.6h).

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Average sunshine days
Plainfield, NJ

Average sunshine days - Plainfield, NJ

The month with the most sunshine days is November (18.4 days).
The month with the least sunshine days is June (11.4 days).

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Average UV index
Plainfield, NJ

Average UV index - Plainfield, NJ

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

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Average visibility
Plainfield, NJ

Average visibility - Plainfield, NJ

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).

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