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Dover (NH) Weather and Climate: A Comprehensive Guide

The climate in Dover is marked by big temperature swings throughout the year. Temperatures range from warm during the warmest months to very cold in the cooler months. It is also known for its large amounts of rain/snowfall. Let’s explore the climate details in depth to provide you with a complete overview.

Average maximum day and minimum night temperature

In Dover, temperatures differ significantly between summer and winter months. Typically, average maximum daytime temperatures range from a comfortable 28°C in July to a very cold 1°C in the coolest month, January.

Nights are cooler, with lows often dropping to around -9°C during the colder months. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

Dover experiences significant rain/snowfall throughout the year, averaging 1221 mm of precipitation annually. Dover offers a pleasant mix of wetter and slightly drier months. The difference in precipitation between June (127 mm) and January (72 mm) is not too significant, making the climate enjoyable for visitors and residents alike.

The mean monthly precipitation over the year, including rain, hail and snow

Sunshine over the year

For those who appreciate different seasons, Dover 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

Data from: Concord, the United States of America (53 KM, 33 Miles).

Daily hours of sunshine

Data from: Concord, the United States of America (53 KM, 33 Miles).

Forecast for Dover (NH)

Wed   Dec 25
1°C | -12°C
NW 4 m/s
almost clear and no rain

almost clear and no rain

Thu   Dec 26
4°C | -8°C
W 1 m/s
clear and no rain

clear and no rain

Fri   Dec 27
7°C | -8°C
SW 2 m/s
partly cloudy and no rain

partly cloudy and no rain

The best time of year to visit Dover in the United States of America

During the months of June and September you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • Which is the warmest month in Dover?
    July has an average maximum temperature of 28°C and is the warmest month of the year.
  • Which is the coldest month in Dover?
    The coldest month is January with an average maximum temperature of 1°C.
  • Which is the wettest month in Dover?
    June tops the wettest month list with 127 mm of rainfall.
  • Which is the driest month in Dover?
    January is the driest month with 72 mm of precipitation.
  • Which is the sunniest month in Dover?
    July is the sunniest month with an average of 295 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.