Morristown (NJ) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Morristown.
Climate overview of Morristown
Temperatures in Morristown, New Jersey, United States of America, vary greatly throughout the year. July is the hottest month at 30°C (86°F), while January is the coldest at 3°C (37°F).
The city receives considerable rain/snowfall, with around 1304 mm (51 in) annually. June is the wettest month. It has warm summers and cold winters. July is the sunniest month, averaging 9.0 hours of sunshine per day.
Morristown Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Morristown - and find the best time to visit.
Monthly Temperature in Morristown
The climate in Morristown is known for significant temperature differences throughout the year, making the weather dynamic. Typically, average maximum daytime temperatures range from a comfortable 30°C (86°F) in July to a chilly 3°C (37°F) in the coolest month, January.
Nights vary from 17°C (63°F) in July to around -7°C (19°F) during the colder months.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Morristown
Morristown has a notably wet climate with abundant precipitation, recording 1304 mm (51 in) of rain/snowfall per year. Morristown offers a pleasant mix of wetter and slightly drier months. The difference in precipitation between the wettest month June (137 mm (5.4 in)) and the driest month November (82 mm (3.2 in)) is not too significant. For more details, please visit our Morristown 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 Morristown
For those who appreciate different seasons, Morristown serves as an ideal destination. Expect longer, more sun-filled days in July with an average of 9.0 hours of sunshine daily, and embrace the darker days in December, offering only 4.7 hours of daily sunlight.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Morristown by Month
The relative humidity is high throughout the year in Morristown.
The city experiences its highest humidity in September, reaching 68%. In April, the humidity drops to its lowest level at 55%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Morristown
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: September
- Warmest weather: July and August
- Most sunshine: May, June, July and August
- Fewest rainy days: February, March, September and November
- Seasonal pattern: Warm summers and cold winters
- Coldest conditions: January, with freezing nights around -7°C (19°F).
Frequently asked questions about the climate in Morristown
What is the best time to visit Morristown?
September typically offers the most optimal weather in Morristown. In contrast, January, February, March and December tend to have less optimal conditions. Morristown has warm summers and cold winters.
What temperatures can I expect in Morristown?
Daytime highs range from 3°C (37°F) in January to 30°C (86°F) in July. Nighttime lows range from -7°C (19°F) to 17°C (63°F). Temperatures vary considerably through the year.
How much rain does Morristown get?
Annual rainfall is around 1304 mm (51 in). June is the wettest month with 137 mm (5.4 in), while November is the driest with 82 mm (3.2 in).
How sunny is Morristown?
Morristown receives around 2,544 hours of sunshine per year. July is the sunniest month with 271 hours, while December is the cloudiest with just 141 hours. Overall, Morristown enjoys abundant sunshine.
Morristown 3-Day Forecast
Morristown (NJ) 3-Day Forecast
Morristown on the map
Morristown is highlighted - select any city to see its climate.
Popular this month
Where to go in July - average daytime high across popular destinations.
Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
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.
The 10 most alternative cities in the United States
Discover the top 10 fun and alternative U.S. cities rich in art, culture, and adventure. From Portland's hippy charm to Sedona's stunning landscapes.
Sedona: Explore Majestic Red Rock Landscapes
A picturesque artists' town surrounded by red rocks and known for its spirituality, vortex energy, and stunning hikes like Cathedral Rock.
10 most idyllic villages to visit in the United States
Discover 10 idyllic villages in the USA, from California to Vermont. Explore their unique charm, rich history, stunning nature, and vibrant arts scenes.