Mercer County, New Jersey Weather

North America

Mercer County, New Jersey is located in the central part of the state, south of Trenton and northwest of Princeton. It is bordered by Bucks County, Pennsylvania to the west and Burlington County, New Jersey to the east. The population of Mercer County was 366,513 as of 2019 according to the U.S. Census Bureau.

According to, Mercer County has a long history that dates back to 1667 when it was originally part of Burlington County. It later became its own county in 1838 and was named after General Hugh Mercer who fought in both the Revolutionary War and the Battle of Princeton.

Today, Mercer County is home to many attractions such as Grounds for Sculpture, a 42-acre sculpture park that features over 270 sculptures created by renowned artists from around the world; Washington Crossing State Park which commemorates General George Washington’s crossing of Delaware River during the Revolutionary War; and Princeton University with its beautiful ivy-covered buildings and impressive collection of art and artifacts.

In addition to its attractions, Mercer County has produced a number of famous people including US Supreme Court Justice Samuel Alito Jr., Pulitzer Prize-winning author Toni Morrison, actor/comedian Tracy Morgan, former US Senator Bill Bradley, and singer/songwriter Paul Simon.

Mercer County is an ideal place to live or visit because it offers something for everyone—from outdoor activities like hiking or biking at Washington Crossing State Park or Grounds for Sculpture to cultural attractions like Princeton University or The National Museum Of Trenton History—there’s something here for everyone to enjoy.

Climate and weather in Mercer County, New Jersey

According to, Mercer County, New Jersey has a humid subtropical climate, which is characterized by hot and humid summers and cold winters. Summers in the county are typically warm and humid, with temperatures reaching into the upper 80s and low 90s Fahrenheit (30-32 Celsius). The highest recorded temperature in Mercer County was 102°F (39°C) in July of 1999. Winters are cold, with temperatures often falling below freezing. The lowest recorded temperature for Mercer County was -7°F (-22°C) in January of 1994.

Rainfall is abundant throughout the year, with an average annual precipitation of 44 inches (111 cm). Snowfall can range from light to moderate depending on the winter season. The average snowfall for Mercer County is 18 inches (45 cm).

The weather in Mercer County can vary greatly from day to day. During the summer months thunderstorms can bring heavy rainfall and strong winds while winter months may experience snowstorms or ice storms that can cause hazardous driving conditions.

Mercer County has a fairly mild climate with four distinct seasons throughout the year. Summers are warm and humid while winters tend to be cold but not too extreme. Rainfall is abundant throughout the year while snowfall varies depending on the winter season.

Transportation in Mercer County, New Jersey

Mercer County, New Jersey is served by several forms of transportation. The most prominent form of transportation in the county is the New Jersey Transit System, which provides rail and bus services throughout the entire state. The NJ Transit system has numerous stations and stops throughout Mercer County, including Trenton, Princeton, Hamilton, and Hightstown.

The county is also served by several highways, including I-95 (the main interstate through the area), I-195 (connecting I-95 to the New Jersey Turnpike), US 206 (connecting Princeton to Trenton), and US 1 (connecting South Brunswick to Trenton). These highways provide easy access to major cities in both New York and Pennsylvania as well as other areas throughout New Jersey.

The county also has a few airports located within its borders. The most prominent of these is Trenton–Mercer Airport which serves commercial flights throughout the United States. Additionally, there are several smaller airports scattered throughout Mercer County that serve private planes and helicopters.

Public transportation in Mercer County includes local buses operated by NJ Transit as well as private bus companies such as Suburban Transit or Coach USA. There are also numerous taxi companies that operate within the county providing door-to-door service for those who need it.

Mercer County offers a wide variety of transportation options for its residents and visitors alike. Whether you’re looking for an airport or highway access or public transportation options like buses or taxis—Mercer County has it all.

Cities and towns in Mercer County, New Jersey

Mercer County, New Jersey is home to a number of cities and towns. The county seat is the city of Trenton, which serves as the state capital and is the largest city in the county. Other notable cities in Mercer County include Hamilton, Princeton, Ewing, Lawrence Township, and Hightstown.

The town of Hopewell is located in the southern part of Mercer County and is known for its historic buildings and quaint downtown area. The town has a number of parks that offer outdoor recreation opportunities including hiking trails, fishing spots, playgrounds, and picnic areas.

According to countryaah, Princeton is another popular destination in Mercer County due to its proximity to Princeton University. The town has several historic sites as well as numerous restaurants, shops, museums, galleries, and other attractions. Additionally, there are several parks located throughout Princeton that offer recreational opportunities such as biking trails or canoeing on Lake Carnegie.

Hamilton Township is located directly east of Trenton and is known for its vibrant restaurant scene as well as its many shopping centers. The township also has several parks including Veterans Park which features a lake with paddle boats available for rent during the summer months.

Lawrence Township offers a charming atmosphere with tree-lined streets and Victorian-style homes throughout the area. There are numerous restaurants located throughout Lawrence Township along with many shops and stores offering unique items from around the world.

Finally, Hightstown offers visitors access to Peddie Lake where they can go fishing or take advantage of other recreational activities such as boating or swimming during warmer months. Additionally, there are several historic sites in Hightstown including the Peddie School which was founded in 1864 by philanthropist John Peddie making it one of the oldest schools in New Jersey still operating today.

Mercer County offers a variety of cities and towns each with their own unique attractions that make them worth visiting while exploring this beautiful part of New Jersey.