South River, NJ Climate


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South River, NJ has a humid subtropical climate with hot and humid summers and cold winters. Summers average between 77°F (25°C) and 90°F (32°C), while winters typically range from 28°F (-2°C) to 49°F (9°C). The area receives around 45 inches (115 cm) of rainfall annually, with most falling in the warmer months. Snowfall is common in winter, averaging around 17 inches (43 cm). Spring and fall are generally mild in South River.

South River, New Jersey gets 49 inches of rain, on average, per year. The US average is 38 inches of rain per year.

South River averages 23 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 205 sunny days per year in South River. The US average is 205 sunny days.

South River gets some kind of precipitation, on average, 117 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.


Weather Highlights

Summer High: the July high is around 86 degrees
Winter Low: the January low is 22
Rain: averages 49 inches of rain a year
Snow: averages 23 inches of snow a year


Bestplaces Comfort Index

The annual BestPlaces Comfort Index for South River is 7.2 (10=best), which means it is about average compared to other places in New Jersey.

8.7 Summer - 5.5 Winter
September, June and May are the most pleasant months in South River, while January and February are the least comfortable months.

  ClimateSouth River, New JerseyUnited States
  49.0 in.38.1 in.
  23.3 in.27.8 in.
  116.8 days106.2 days
  205 days205 days
  85.9°85.8°
  22.4°21.7°
  7.27
  3.94.3
  82 ft.2443 ft.
Climate
YOU SHOULD KNOW

Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.

July is the hottest month for South River with an average high temperature of 85.9°, which ranks it as warmer than most places in New Jersey. In South River, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for South River are September, June and May.
In South River, there are 19.6 days annually when the high temperature is over 90°, which is hotter than most places in New Jersey.
January has the coldest nighttime temperatures for South River with an average of 22.4°. This is about average compared to other places in New Jersey.
In South River, there are 104.6 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in New Jersey.
In South River, there are 0.6 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in New Jersey.
The humidity is usually comfortable in South River but some summer months can be sticky or muggy. July is the most humid month, though humidity is low for most of the year. The most humid months are July, August and June.
July is the wettest month in South River with 5.3 inches of rain, and the driest month is February with 2.8 inches. The wettest season is Autumn with 28% of yearly precipitation and 21% occurs in Spring, which is the driest season. The annual rainfall of 49.0 inches in South River means that it is wetter than most places in New Jersey.
May is the rainiest month in South River with 11.5 days of rain, and September is the driest month with only 8.4 rainy days. There are 116.8 rainy days annually in South River, which is about average compared to other places in New Jersey. The rainiest season is Summer when it rains 28% of the time and the driest is Winter with only a 23% chance of a rainy day.
An annual snowfall of 23.3 inches in South River means that it is about average compared to other places in New Jersey. February is the snowiest month in South River with 7.8 inches of snow, and 5 months of the year have significant snowfall.
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