Best year time to visit Dartmouth

General weather information about Dartmouth

Average annual temperature is 14.3 °C

Absolute maximum temperature: 40.7 °C

Absolute minimum temperature: -14.4 °C

Number of sunny days: 232 days

Number of rainy days: 126 days

Number of snow days: 7 days

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* Weather data for Dartmouth United States is based on climate observations for 2026 year

Dartmouth air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)15.618.924.030.231.736.639.640.737.430.521.719.4
Average daytime temperature (°C)6.710.513.221.325.430.132.534.029.721.614.59.1
Average temperature (°C)0.82.66.113.519.223.826.527.523.415.48.34.1
Average night temperature (°C)-3.0-3.01.07.614.018.321.421.718.110.43.40.4
Absolute minimum temperature (°C)-14.4-14.3-7.8-2.44.314.915.915.011.7-5.5-5.2-5.1

Dartmouth monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)10.011.012.013.014.014.014.014.013.011.010.09.0
Daylight mean duration (h)9.810.812.013.214.314.814.513.612.411.210.19.5
Daylight minimum duration (h)9.010.011.012.013.014.014.013.011.010.09.09.0
Sunshine mean duration (h)6.99.09.29.910.411.812.012.210.28.77.75.4
Precipitation (mm)2813152280841264575504049
Sunny days22232420139152223222316
Rainy days74710182116979612
Snow days210000000013

Dartmouth - weather forecast by months

Dartmouth weather in januaryDartmouth weather in februaryDartmouth weather in marchDartmouth weather in aprilDartmouth weather in mayDartmouth weather in juneDartmouth weather in julyDartmouth weather in augustDartmouth weather in septemberDartmouth weather in octoberDartmouth weather in novemberDartmouth weather in december

Best time to visit Dartmouth:

The best time to visit Dartmouth during the most sunny months:

  • June — 11.8(h)
  • July — 12.0(h)
  • August — 12.2(h)

The largest precipitation sum in Dartmouth is at

  • May — 80(mm)
  • June — 84(mm)
  • July — 126(mm)
  • September — 75(mm)

    • Weather forecast in the closest to Dartmouth admin centers

    Weather forecast in the closest towns to Dartmouth

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    Frequently asked questions

    When is the best time to visit Dartmouth?
    The historical weather data above shows the warmest, sunniest and driest months to help you choose the best time to visit Dartmouth.
    What is the weather like in Dartmouth?
    See average temperature, rainfall and daylight hours for Dartmouth by month in the table above.
    How many sunny days does Dartmouth have?
    The monthly weather statistics above show sunshine and rainfall patterns for Dartmouth throughout the year.