Marietta (OH) monthly weather averages

Contents

Average daytime temperature

The bar chart below shows the average monthly peak daytime temperatures at Marietta

Marietta average temperature chart (Celsius) Marietta average temperature chart (Fahrenheit)
Average monthly temperatures in Marietta (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 3.3 5.4 12.1 18.2 23.2 27.5 29.2 28.4 25 18.9 12.4 6.1
°F 38 41.8 53.8 64.7 73.7 81.5 84.5 83.1 77 66 54.3 42.9

Please note: these are the average peak daytime temperatures (usually around mid-afternoon) so do not show daytime / night highs and lows. To see the daily range of temperatures have a look at the temperature max / min chart below.

Average rainfall & rainy days

The graph below shows the average rainfall and number of rainy days per month.

Marietta monthly rainfall chart (mm) Marietta monthly rainfall chart (inches)
Average monthly rainfall in Marietta (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 68 66 97 88 98 95 110 104 79 71 82 79
inches 2.7 2.6 3.8 3.5 3.9 3.7 4.3 4.1 3.1 2.8 3.2 3.1
Rainy days 15 14 15 14 13 11 12 10 10 10 13 15

Average annual rainfall in Marietta: 994.8mm (391.7 inches)

Average daily sunshine

The bar chart below shows the average daily sunshine hours in Marietta

Marietta average daily sunshine chart
Average daily sunshine Marietta
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 3.9 4.9 6.1 7.2 8.3 8.9 8.6 8.2 7.4 6.6 4.1 3.2

Day / night temperatures

The graph below shows the daily range of temperatures for each month.

Marietta average minimum / maximum temperatures (Celsius) Marietta average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Marietta (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -6.4 -5.1 0.4 5.3 10.3 14.8 17.6 17 13.1 6.4 2 -3.1
Max °C 3.6 5.7 12.4 18.5 23.5 27.8 29.5 28.7 25.3 19.2 12.7 6.3
Min °F 20.6 22.8 32.7 41.5 50.5 58.6 63.6 62.5 55.6 43.5 35.5 26.4
Max °F 29.5 32.5 43.5 53.4 62.4 70.3 74.3 73 66.6 55 45.1 34.9

Sea temperature

The graph below shows the average sea temperature.

Marietta average sea temperature chart (Celsius) Marietta average sea temperature chart (Fahrenheit)
Average sea temperature around Marietta in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 5.7 4.8 4.8 7.1 12.2 18.8 23.4 24.3 22.2 17.3 12.3 8.1
°F 42.2 40.6 40.7 44.8 54 65.8 74.1 75.7 71.9 63.2 54.1 46.6

Wind speed

The graph below shows the average wind speed.

Marietta average winspeed by month (km/h) Marietta average winspeed by month (mph)
Average wind speed in Marietta (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 15 15 16 15 13 11 10 10 10 12 14 15
mph 9 9 10 9 8 7 6 6 6 7 9 9

A monthly average windspeed of over 16km/h or 10mph suggests a location is fairly windy.

Relative humidity

The graph below shows the average relative humidity.

Marietta relative humidity averages
Average relative humidity in Marietta
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
71% 69% 65% 62% 67% 71% 73% 75% 76% 71% 71% 73%

Other monthly averages

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Marietta weather stats

Marietta weather statistics
Hottest month: July 29.2°C 84.6°F
Driest month: February 66mm 2.6ins
Sunniest month: June 8.9hrs
Coldest month: January 3.3°C 37.9°F
Wettest month: July 110mm 4.3ins
Warmest sea: August 24.3°C 75.7°F
Map showing location of Marietta (39.41535, -81.45484) Marietta map pin © Google

Locations nearby

Top United States locations