Mount Holly (NJ) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Mount Holly.
Climate overview of Mount Holly
The climate in Mount Holly, New Jersey, United States of America, is marked by large temperature swings across the seasons, ranging from 31°C (88°F) in July to 5°C (41°F) in January.
The city has a wet climate, receiving around 1216 mm (48 in) of rain/snowfall per year. Despite the high annual total, it has very warm summers and cold winters. December is the wettest month. July is the sunniest month, averaging 9.0 hours of sunshine per day.
Mount Holly Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Mount Holly - and find the best time to visit.
Monthly Temperature in Mount Holly
In Mount Holly, temperatures differ significantly between summer and winter months. On average, daytime temperatures range from a very warm 31°C (88°F) in July to a chilly 5°C (41°F) in January.
Nighttime temperatures range from 19°C (66°F) in July to -5°C (23°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Mount Holly
Mount Holly experiences significant rain/snowfall throughout the year, averaging 1216 mm (48 in) of precipitation annually. The amount of precipitation varies moderately throughout the year. The wettest month, December, sees around 127 mm (5 in) of rainfall, perfect for those who enjoy a bit of rain now and then. The driest month, February, still receives a respectable 75 mm (3 in) of snow/rainfall. For more details, please visit our Mount Holly 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 Mount Holly
In Mount Holly, summer days are longer and more sunny, with daily sunshine hours peaking at 9.0 hours in July. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 4.7 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Best Time to Visit Mount Holly
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: May and September
- Warmest weather: July and August
- Most sunshine: June and July
- Fewest rainy days: January, February, September and November
- Seasonal pattern: Very warm summers and cold winters
- Coldest conditions: January, with freezing nights around -5°C (23°F).
Frequently asked questions about the climate in Mount Holly
What is the best time to visit Mount Holly?
May and September typically offer the most optimal weather in Mount Holly. In contrast, January, February and December tend to have less optimal conditions. Mount Holly has very warm summers and cold winters.
What temperatures can I expect in Mount Holly?
Daytime highs range from 5°C (41°F) in January to 31°C (88°F) in July. Nighttime lows range from -5°C (23°F) to 19°C (66°F). Temperatures vary considerably through the year.
How much rain does Mount Holly get?
Annual rainfall is around 1216 mm (48 in). December is the wettest month with 127 mm (5 in), while February is the driest with 75 mm (3 in).
How sunny is Mount Holly?
Mount Holly 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, Mount Holly enjoys abundant sunshine.
Mount Holly 3-Day Forecast
Mount Holly (NJ) 3-Day Forecast
Mount Holly on the map
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