New London (NH) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit New London.
Climate overview of New London
Temperatures in New London, New Hampshire, United States of America, vary greatly throughout the year. July is the hottest month at 26°C (79°F), while January is the coldest at -1°C (30°F).
The city receives considerable rain/snowfall, with around 1218 mm (48 in) annually. October is the wettest month. It has warm summers and very cold winters. The sunniest month is July, with 9.8 hours of sunshine per day on average.
New London Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in New London - and find the best time to visit.
Monthly Temperature in New London
The climate in New London is known for significant temperature differences throughout the year, making the weather dynamic. Typically, average maximum daytime temperatures range from a comfortable 26°C (79°F) in July to a very cold -1°C (30°F) in the coolest month, January.
Nights vary from 15°C (59°F) in July to around -10°C (14°F) during the colder months.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in New London
New London has a notably wet climate with abundant precipitation, recording 1218 mm (48 in) of rain/snowfall per year. New London offers a pleasant mix of wetter and slightly drier months. The difference in precipitation between the wettest month October (140 mm (5.5 in)) and the driest month January (75 mm (3 in)) is not too significant. For more details, please visit our New London 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 New London
For those who appreciate different seasons, New London serves as an ideal destination. Expect longer, more sun-filled days in July with an average of 9.8 hours of sunshine daily, and embrace the darker days in November, offering only 4.2 hours of daily sunlight.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Humidity in New London by Month
The relative humidity is high throughout the year in New London.
The city experiences its highest humidity in September, reaching 76%. In April, the humidity drops to its lowest level at 62%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit New London
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: July
- Fewer rainy days: February, March, April, September and November
- Seasonal pattern: Warm summers and very cold winters
- Coldest conditions: January, with freezing nights around -10°C (14°F).
Frequently asked questions about the climate in New London
What is the best time to visit New London?
September typically offers the most optimal weather in New London. In contrast, January, February, March, November and December tend to have less optimal conditions. New London has warm summers and very cold winters.
What temperatures can I expect in New London?
Daytime highs range from -1°C (30°F) in January to 26°C (79°F) in July. Nighttime lows range from -10°C (14°F) to 15°C (59°F). Temperatures vary considerably through the year.
How much rain does New London get?
Annual rainfall is around 1218 mm (48 in). October is the wettest month with 140 mm (5.5 in), while January is the driest with 75 mm (3 in).
How sunny is New London?
New London receives around 2,512 hours of sunshine per year. July is the sunniest month with 295 hours, while November is the cloudiest with just 127 hours. Overall, New London enjoys abundant sunshine.
New London 3-Day Forecast
New London (NH) 3-Day Forecast
New London on the map
New London is highlighted - select any city to see its climate.
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