Mercerville, NJ Climate


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United States / New Jersey / Trenton-Princeton Metro Area / Mercer County / Mercerville / Zip Codes
Mercerville, NJ has a humid subtropical climate with hot summers and mild winters. Temperatures usually range between 30°F in the winter to 90°F in the summer. The average amount of precipitation in Mercerville is around 45 inches per year, with an average of 226 sunny days each year. The city experiences all four seasons throughout the year, with spring being the wettest season and summer being the hottest and driest season.

Mercerville, New Jersey gets 47 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Mercerville averages 19 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 Mercerville. The US average is 205 sunny days.

Mercerville gets some kind of precipitation, on average, 120 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 85 degrees
Winter Low: the January low is 22
Rain: averages 47 inches of rain a year
Snow: averages 19 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Mercerville 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 August are the most pleasant months in Mercerville, while January and February are the least comfortable months.

  ClimateMercerville, New JerseyUnited States
  47.4 in.38.1 in.
  19.3 in.27.8 in.
  120.2 days106.2 days
  205 days205 days
  85.4°85.8°
  22.3°21.7°
  7.27
  44.3
  89 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 Mercerville with an average high temperature of 85.4°, which ranks it as about average compared to other places in New Jersey. In Mercerville, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Mercerville are September, June and August.
In Mercerville, there are 16.4 days annually when the high temperature is over 90°, which is about average compared to other places in New Jersey.
January has the coldest nighttime temperatures for Mercerville with an average of 22.3°. This is about average compared to other places in New Jersey.
In Mercerville, there are 106.1 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in New Jersey.
In Mercerville, there are 0.5 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in New Jersey.
The humidity is usually comfortable in Mercerville 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 Mercerville with 5.0 inches of rain, and the driest month is February with 2.6 inches. The wettest season is Autumn with 29% of yearly precipitation and 21% occurs in Spring, which is the driest season. The annual rainfall of 47.4 inches in Mercerville means that it is about average compared to other places in New Jersey.
May is the rainiest month in Mercerville with 11.6 days of rain, and September is the driest month with only 8.6 rainy days. There are 120.2 rainy days annually in Mercerville, which is rainier than most 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 19.3 inches in Mercerville means that it is less snowy than most places in New Jersey. January is the snowiest month in Mercerville with 6.0 inches of snow, and 5 months of the year have significant snowfall.
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