Sussex County, NJ Climate

Sussex County, NJ has a humid continental climate with four distinct seasons. Summers are usually hot and humid with temperatures reaching into the high 80s and occasionally into the 90s. Winters are generally cold, often dipping below freezing, with occasional snowfall throughout the season. Spring and fall typically bring moderate temperatures with chances for rain showers. Overall, Sussex County enjoys mild weather throughout the year and is an ideal place to visit any time of year.

Sussex County, New Jersey gets 48 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Sussex County averages 38 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 208 sunny days per year in Sussex County. The US average is 205 sunny days.

Sussex County gets some kind of precipitation, on average, 124 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 83 degrees
Winter Low: the January low is 17
Rain: averages 48 inches of rain a year
Snow: averages 38 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Sussex County is 7.0 (10=best), which means it is less comfortable than most places in New Jersey.

9.1 Summer - 4.9 Winter

August, June and July are the most pleasant months in Sussex County, while January and February are the least comfortable months.

Climate	Sussex, New Jersey	United States
	Unlock	38.1 in.
	37.6 in.	Unlock
	Unlock	106.2 days
	208 days	Unlock
	82.9°	85.8°
	Unlock	21.7°
	7	Unlock
	Unlock	4.3
	799 ft.	Unlock

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 Sussex County with an average high temperature of 82.9°, which ranks it as cooler than most places in New Jersey. In Sussex County, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Sussex County are June, August and September.

In Sussex County, there are 8.5 days annually when the high temperature is over 90°, which is one of the coolest places in New Jersey.

January has the coldest nighttime temperatures for Sussex County with an average of 16.7°. This is one of the coldest places in New Jersey.

In Sussex County, there are 135.0 days annually when the nighttime low temperature falls below freezing, which is one of the coldest places in New Jersey.

In Sussex County, there are 3.9 days annually when the nighttime low temperature falls below zero°, which is one of the coldest places in New Jersey.

The humidity is usually comfortable in Sussex County 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.

June is the wettest month in Sussex County with 4.7 inches of rain, and the driest month is February with 2.9 inches. The wettest season is Autumn with 27% of yearly precipitation and 21% occurs in Spring, which is the driest season. The annual rainfall of 48.3 inches in Sussex County means that it is wetter than most places in New Jersey.

May is the rainiest month in Sussex County with 12.0 days of rain, and February is the driest month with only 8.9 rainy days. There are 123.6 rainy days annually in Sussex County, which is one of the rainiest places in New Jersey. The rainiest season is Summer when it rains 28% of the time and the driest is Winter with only a 22% chance of a rainy day.

An annual snowfall of 37.6 inches in Sussex County means that it is one of the snowiest places in New Jersey. January is the snowiest month in Sussex County with 12.1 inches of snow, and 6 months of the year have significant snowfall.

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