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Marietta (OH) Weather and Climate: A Comprehensive Guide

The temperature in Marietta can vary greatly throughout the year. The temperatures shift from warm to cold. It is also known for its large amounts of rain/snowfall. Now, let’s explore all the climate details to give you a full picture.

Average maximum day and minimum night temperature

Depending on the time of the year, temperatures range from comfortable to chilly in Marietta. Typically, average maximum daytime temperatures range from a comfortable 29°C in August to a chilly 4°C in the coolest month, February.

Nights are cooler, with lows often dropping to around -6°C during the colder months. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

Marietta has a relatively rain/snowy climate with high precipitation levels, averaging 1111 mm of rain/snowfall annually. Marietta offers a pleasant mix of wetter and slightly drier months. The difference in precipitation between June (125 mm) and November (65 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

Forecast for Marietta (OH)

Fri   Dec 27
14°C | 0°C
SE 4 m/s
2.3 mm
broken clouds and rain

broken clouds and rain

Sat   Dec 28
17°C | 10°C
S 3 m/s
1.8 mm
broken clouds and slight rain

broken clouds and slight rain

Sun   Dec 29
17°C | 8°C
S 7 m/s
25 mm
overcast and heavy rain

overcast and heavy rain

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

Other facts from our historical weather data:
  • When is summer in Marietta?
    The hottest season / summer takes place in June, July, August and September.
  • Which is the warmest month in Marietta?
    August has an average maximum temperature of 29°C and is the warmest month of the year.
  • Which is the coldest month in Marietta?
    The coldest month is February with an average maximum temperature of 4°C.
  • Which is the wettest month in Marietta?
    June tops the wettest month list with 125 mm of rainfall.
  • Which is the driest month in Marietta?
    November is the driest month with 65 mm of precipitation.

  • 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.