Yosemite National Park is definitely worth a visit
Vast forests, blue lakes, towering sequoias, and majestic waterfalls hint at the beauty of Yosemite National Park—a true natural masterpiece.
Monmouth Junction (NJ) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Monmouth Junction.
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Climate overview of Monmouth Junction
Monmouth Junction, New Jersey, United States of America, sees big temperature differences between seasons, with July peaking at 31°C (88°F) and January dropping to 4°C (39°F).
Rain/snowfall is high, totalling around 1281 mm (50 in) per year. July is the wettest month and November the driest. The city also experiences very warm summers and cold winters. July is the sunniest month, averaging 9.0 hours of sunshine per day.
Monmouth Junction Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Monmouth Junction - and find the best time to visit.
Monthly Temperature in Monmouth Junction
Visitors to Monmouth Junction can expect significant temperature changes throughout the year. Average maximum daytime temperatures range from a very warm 31°C (88°F) in July, the warmest time of the year, to a chilly 4°C (39°F) during cooler months like January.
At night, you can expect temperatures ranging from 18°C (64°F) in July to around -6°C (21°F) during January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Monmouth Junction
Monmouth Junction is known for its substantial rain/snowfall, with annual precipitation reaching 1281 mm (50 in). While rainfall varies throughout the year, each season offers its own charm. July brings wetter days averaging 132 mm (5.2 in) of precipitation, spread over 13 rainy days.
In contrast, the driest month November experiences a drier climate, with about 78 mm (3.1 in) of rainfall spread across 10 rainy days. For more details, please visit our Monmouth Junction Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Monmouth Junction
Seasonal changes in sunshine hours are quite dramatic in Monmouth Junction. While July receives considerable daily sunshine with up to 9.0 hours, December marks the darkest time of the year, where sunshine is scarce with only 4.7 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Data from: Trenton, the United States of America (24 KM, 15 Miles).
Daily hours of sunshine
Data from: Trenton, the United States of America (24 KM, 15 Miles).
Daily percentage of sunshine
Data from: Trenton, the United States of America (24 KM, 15 Miles).
Best Time to Visit Monmouth Junction
Conditions in Monmouth Junction are generally most comfortable in September. They are typically least comfortable in January, February, March and December.
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
Jan
cold
Feb
cold
Mar
wet
Apr
good
May
very good
Jun
very good
Jul
mixed
Aug
very good
Sep
excellent
Oct
good
Nov
mixed
Dec
wet
- Best overall: September
- Warmest weather: July and August
- Most sunshine: June and July
- Fewest rainy days: February, March, September and November
- Seasonal pattern: Very warm summers and cold winters
- Coldest conditions: January, with freezing nights around -6°C (21°F).
Frequently asked questions about the climate in Monmouth Junction
What is the best time to visit Monmouth Junction?
September typically offers the most optimal weather in Monmouth Junction. In contrast, January, February, March and December tend to have less optimal conditions. Monmouth Junction has very warm summers and cold winters.
What temperatures can I expect in Monmouth Junction?
Daytime highs range from 4°C (39°F) in January to 31°C (88°F) in July. Nighttime lows range from -6°C (21°F) to 18°C (64°F). Temperatures vary considerably through the year.
How much rain does Monmouth Junction get?
Annual rainfall is around 1281 mm (50 in). July is the wettest month with 132 mm (5.2 in), while November is the driest with 78 mm (3.1 in).
How sunny is Monmouth Junction?
Monmouth Junction receives around 2,502 hours of sunshine per year. July is the sunniest month with 269 hours, while December is the cloudiest with just 140 hours. Overall, Monmouth Junction enjoys abundant sunshine.
Monmouth Junction 3-Day Forecast
Monmouth Junction on the map
Monmouth Junction is highlighted - select any city to see its climate.
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