Hamilton (NJ) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Hamilton.
Climate overview of Hamilton
The climate in Hamilton, 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 receives considerable rain/snowfall, with around 1232 mm (49 in) annually. July is the wettest month. Sunshine peaks in July, when the city sees around 9.0 hours of sunshine per day.
Hamilton Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Hamilton — and find the best time to visit.
Monthly Temperature in Hamilton
In Hamilton, temperatures differ significantly between summer and winter months. Typically, average maximum daytime temperatures range from a very warm 31°C (88°F) in July to a chilly 5°C (41°F) in the coolest month, January.
Nights vary from 19°C (66°F) in July to around -5°C (23°F) during the colder months.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Hamilton
Hamilton experiences significant rain/snowfall throughout the year, averaging 1232 mm (49 in) of precipitation annually. Hamilton offers a pleasant mix of wetter and slightly drier months. The difference in precipitation between the wettest month July (133 mm (5.2 in)) and the driest month February (73 mm (2.9 in)) is not too significant. For more details, please visit our Hamilton 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 Hamilton
For those who appreciate different seasons, Hamilton 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
Best Time to Visit Hamilton
Frequently asked questions about the climate in Hamilton
What is the best time to visit Hamilton?
September typically offers the most optimal weather in Hamilton. In contrast, January, February and December tend to have less optimal conditions.
What temperatures can I expect in Hamilton?
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 Hamilton get?
Annual rainfall is around 1232 mm (49 in). July is the wettest month with 133 mm (5.2 in), while February is the driest with 73 mm (2.9 in).
How sunny is Hamilton?
Hamilton 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, Hamilton enjoys abundant sunshine.
Hamilton 3-Day Forecast
Hamilton (NJ) 3-Day Forecast
Hamilton on the map
Hamilton is highlighted — select any city to see its climate.
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