Peterborough (NH) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Peterborough.
Climate overview of Peterborough
The climate in Peterborough, New Hampshire, United States of America, is marked by large temperature swings across the seasons, ranging from 27°C (81°F) in July to 0°C (32°F) in January.
The city has a wet climate, receiving around 1257 mm (49 in) of rain/snowfall per year. Despite the high annual total, it has warm summers and very cold winters. October is the wettest month. The sunniest month is July, with 9.8 hours of sunshine per day on average.
Peterborough Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Peterborough - and find the best time to visit.
Monthly Temperature in Peterborough
In Peterborough, temperatures differ significantly between summer and winter months. On average, daytime temperatures range from a comfortable 27°C (81°F) in July to a very cold 0°C (32°F) in January.
Nighttime temperatures range from 15°C (59°F) in July to -11°C (12°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Peterborough
Peterborough experiences significant rain/snowfall throughout the year, averaging 1257 mm (49 in) of precipitation annually. The amount of precipitation varies moderately throughout the year. The wettest month, October, sees around 135 mm (5.3 in) of rainfall, perfect for those who enjoy a bit of rain now and then. The driest month, November, still receives a respectable 80 mm (3.1 in) of rainfall. For more details, please visit our Peterborough 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 Peterborough
In Peterborough, summer days are longer and more sunny, with daily sunshine hours peaking at 9.8 hours in July. As the darker season arrives, the brightness of the sun becomes less. November sees a soft sun for only 4.2 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Humidity in Peterborough by Month
The relative humidity is high throughout the year in Peterborough.
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 Peterborough
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: July
- Fewest rainy days: February, March, September and November
- Seasonal pattern: Warm summers and very cold winters
- Coldest conditions: January, with freezing nights around -11°C (12°F).
Frequently asked questions about the climate in Peterborough
What is the best time to visit Peterborough?
May and September typically offer the most optimal weather in Peterborough. In contrast, January, February, March, November and December tend to have less optimal conditions. Peterborough has warm summers and very cold winters.
What temperatures can I expect in Peterborough?
Daytime highs range from 0°C (32°F) in January to 27°C (81°F) in July. Nighttime lows range from -11°C (12°F) to 15°C (59°F). Temperatures vary considerably through the year.
How much rain does Peterborough get?
Annual rainfall is around 1257 mm (49 in). October is the wettest month with 135 mm (5.3 in), while November is the driest with 80 mm (3.1 in).
How sunny is Peterborough?
Peterborough 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, Peterborough enjoys abundant sunshine.
Peterborough 3-Day Forecast
Peterborough (NH) 3-Day Forecast
Peterborough on the map
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