Best year time to visit Marietta

General weather information about Marietta

Average annual temperature is 9.6 °C

Absolute maximum temperature: 30.8 °C

Absolute minimum temperature: -26.0 °C

Number of sunny days: 100 days

Number of rainy days: 232 days

Number of snow days: 33 days

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

Marietta air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)12.615.712.126.829.730.630.827.630.027.914.012.2
Average daytime temperature (°C)2.94.54.315.519.023.026.423.421.715.67.05.8
Average temperature (°C)-0.3-1.10.19.212.917.921.819.117.111.93.32.7
Average night temperature (°C)-2.9-5.6-3.24.37.513.918.115.913.89.00.60.5
Absolute minimum temperature (°C)-11.0-26.0-8.7-6.12.09.114.211.38.80.4-5.4-6.2

Marietta monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)9.011.012.014.015.015.015.014.013.011.010.09.0
Daylight mean duration (h)9.410.511.913.414.615.315.013.912.511.09.89.1
Daylight minimum duration (h)9.09.011.012.014.015.014.013.011.010.09.09.0
Sunshine mean duration (h)2.04.75.18.212.010.911.610.49.25.65.12.9
Precipitation (mm)11778136109501821091936210189143
Sunny days567121875515767
Rainy days161516181323262615241822
Snow days1078000000062

Marietta - weather forecast by months

Marietta weather in januaryMarietta weather in februaryMarietta weather in marchMarietta weather in aprilMarietta weather in mayMarietta weather in juneMarietta weather in julyMarietta weather in augustMarietta weather in septemberMarietta weather in octoberMarietta weather in novemberMarietta weather in december

Best time to visit Marietta:

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

  • May — 12.0(h)
  • June — 10.9(h)
  • July — 11.6(h)
  • August — 10.4(h)
  • September — 9.2(h)

Months with the longest average daylight duration in Marietta:

  • June — 15.3(h)

The largest precipitation sum in Marietta is at

  • June — 182(mm)
  • August — 193(mm)

    • Weather forecast in the closest to Marietta admin centers

    Weather forecast in the closest towns to Marietta

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    Frequently asked questions

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