Marietta, Georgia 

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Atlanta Gifts

Climate in Marietta, Georgia

Marietta, Georgia gets 53 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Marietta averages 2 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 217 sunny days per year in Marietta. The US average is 205 sunny days.

Marietta gets some kind of precipitation, on average, 111 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.

Weather Highlights

Summer High: the July high is around 88 degrees
Winter Low: the January low is 31
Rain: averages 53 inches of rain a year
Snow: averages 2 inches of snow a year


The annual BestPlaces Comfort Index for Marietta is 7.6 (10=best), which means it is one of the most pleasant places in Georgia.

7.1 / 6.8

Summer   /   Winter
May, September and October are the most pleasant months in Marietta, while January and July are the least comfortable months.

Climate Averages
  Marietta, GeorgiaUnited States
  53.0 in.38.1 in.
  1.7 in.27.8 in.
  111.4 days106.2 days
  217 days205 days
  1129 ft.2443 ft.


Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.

July is the hottest month for Marietta with an average high temperature of 87.6°, which ranks it as one of the coolest places in Georgia. In Marietta, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Marietta are May, September and October.

In Marietta, there are 27.1 days annually when the high temperature is over 90°, which is one of the coolest places in Georgia.

January has the coldest nighttime temperatures for Marietta with an average of 30.9°. This is colder than most places in Georgia.

In Marietta, there are 58.4 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Georgia.

In Marietta, there are 0.1 days annually when the nighttime low temperature falls below zero°, which is one of the coldest places in Georgia.

Humidity in Marietta can be uncomfortable during the summer, but comfortable for most of the year. The most uncomfortably humid months are July, August and June. The humid season runs from June-September and the most comfortable months are October-May.

July is the wettest month in Marietta with 5.4 inches of rain, and the driest month is October with 3.6 inches. The wettest season is Spring with 27% of yearly precipitation and 23% occurs in Winter, which is the driest season. The annual rainfall of 53.0 inches in Marietta means that it is wetter than most places in Georgia.

July is the rainiest month in Marietta with 11.2 days of rain, and October is the driest month with only 7.1 rainy days. There are 111.4 rainy days annually in Marietta, which is one of the rainiest places in Georgia. The rainiest season is Autumn when it rains 27% of the time and the driest is Winter with only a 20% chance of a rainy day.

An annual snowfall of 1.7 inches in Marietta means that it is one of the snowiest places in Georgia. January is the snowiest month in Marietta with 0.6 inches of snow, and 2 months of the year have significant snowfall.

  • Annual Rainfall (US Avg: 36.5")
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    Reviews for Marietta    27 Reviews
    Old Southern town that's all grown up - 7/20/2020
    I lived in both Marietta and Kennesaw Georgia in the 90's. It is a traditional sold Southern city with lots of good qualities. The town square is very quaint and there... Read More

    Start Your Review of Marietta

    Marietta - 11/6/2015
    Marietta is a great place to... Read More

    Good town - 11/28/2013
    Nice... Read More

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