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South Plainfield (NJ) Weather and Climate: A Comprehensive Guide

South Plainfield experiences great temperature shifts. The city's weather can transition from very warm days to cold weather. It also has a relatively rain/snowy climate with high levels of precipitation. Now, let’s explore all the climate details to give you a full picture.

Average maximum day and minimum night temperature

The climate in South Plainfield is known for significant temperature differences throughout the year, making the weather dynamic. On average, daytime temperatures range from a very warm 31°C in July to a chilly 5°C in January.

Nighttime temperatures can drop, with average lows reaching -5°C in January. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

South Plainfield has a notably wet climate with abundant precipitation, recording 1227 mm of rain/snowfall per year. The amount of precipitation varies moderately throughout the year. The wettest month, June, sees around 125 mm of rainfall, perfect for those who enjoy a bit of rain now and then. The driest month, November, still receives a respectable 76 mm of rainfall.

The mean monthly precipitation over the year, including rain, hail and snow

Sunshine over the year

In South Plainfield, summer days are longer and more sunny, with daily sunshine hours peaking at 9.0 hours in July. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 4.7 hours per average day. Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Data from: New York City, the United States of America (47 KM, 29 Miles).

Daily hours of sunshine

Data from: New York City, the United States of America (47 KM, 29 Miles).

Forecast for South Plainfield (NJ)

Fri   Dec 27
5°C | -8°C
N 1 m/s
partly cloudy and no rain

partly cloudy and no rain

Sat   Dec 28
8°C | 1°C
SE 1 m/s
3.6 mm
overcast and rain

overcast and rain

Sun   Dec 29
17°C | 6°C
S 4 m/s
3.5 mm
broken clouds and rain

broken clouds and rain

The best time of year to visit South Plainfield in the United States of America

Other facts from our historical weather data:
  • When is summer in South Plainfield?
    The hottest season / summer takes place in June, July, August and September.
  • Which is the warmest month in South Plainfield?
    July has an average maximum temperature of 31°C and is the warmest month of the year.
  • Which is the coldest month in South Plainfield?
    The coldest month is January with an average maximum temperature of 5°C.
  • Which is the wettest month in South Plainfield?
    June tops the wettest month list with 125 mm of rainfall.
  • Which is the driest month in South Plainfield?
    November is the driest month with 76 mm of precipitation.
  • Which is the sunniest month in South Plainfield?
    July is the sunniest month with an average of 271 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.