Marietta (OH) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Marietta.
Climate overview of Marietta
Marietta, Ohio, United States of America, experiences significant temperature variation throughout the year. Summers bring daytime highs of 29°C (84°F) in August, while winters cool to 4°C (39°F) in January.
The city receives considerable rain/snowfall, with around 1111 mm (44 in) annually. June is the wettest month. It has warm summers and cold winters.
Marietta Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Marietta - and find the best time to visit.
Monthly Temperature in Marietta
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 (84°F) in August to a chilly 4°C (39°F) in the coolest month, January.
Nights vary from 18°C (64°F) in August to around -6°C (21°F) during the colder months.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Marietta
Marietta has a relatively rain/snowy climate with high precipitation levels, averaging 1111 mm (44 in) of rain/snowfall annually. Marietta offers a pleasant mix of wetter and slightly drier months. The difference in precipitation between the wettest month June (125 mm (4.9 in)) and the driest month November (65 mm (2.6 in)) is not too significant. For more details, please visit our Marietta Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Best Time to Visit Marietta
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: August and September
- Warmest weather: July and August
- Fewer rainy days: March, August, September, October and November
- Seasonal pattern: Warm summers and cold winters
- Coldest conditions: January, with freezing nights around -6°C (21°F).
Frequently asked questions about the climate in Marietta
What is the best time to visit Marietta?
August and September typically offer the most optimal weather in Marietta. In contrast, January, February and December tend to have less optimal conditions. Marietta has warm summers and cold winters.
What temperatures can I expect in Marietta?
Daytime highs range from 4°C (39°F) in January to 29°C (84°F) in August. Nighttime lows range from -6°C (21°F) to 18°C (64°F). Temperatures vary considerably through the year.
How much rain does Marietta get?
Annual rainfall is around 1111 mm (44 in). June is the wettest month with 125 mm (4.9 in), while November is the driest with 65 mm (2.6 in).
Marietta 3-Day Forecast
Marietta (OH) 3-Day Forecast
Marietta on the map
Marietta is highlighted - select any city to see its climate.
Popular this month
Where to go in July - average daytime high across popular destinations.
Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
Yosemite National Park is definitely worth a visit
Vast forests, blue lakes, towering sequoias, and majestic waterfalls hint at the beauty of Yosemite National Park—a true natural masterpiece.
The 10 most alternative cities in the United States
Discover the top 10 fun and alternative U.S. cities rich in art, culture, and adventure. From Portland's hippy charm to Sedona's stunning landscapes.
Sedona: Explore Majestic Red Rock Landscapes
A picturesque artists' town surrounded by red rocks and known for its spirituality, vortex energy, and stunning hikes like Cathedral Rock.
10 most idyllic villages to visit in the United States
Discover 10 idyllic villages in the USA, from California to Vermont. Explore their unique charm, rich history, stunning nature, and vibrant arts scenes.