Marietta (OK) monthly weather averages

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 10.5 13.4 18 23.2 27.2 31.4 34.4 34.2 29.5 24.3 17.6 12.4
°F 50.8 56 64.4 73.8 80.9 88.5 93.9 93.6 85.1 75.7 63.6 54.3

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 42 52 73 93 127 96 67 63 110 92 61 51
inches 1.7 2.1 2.9 3.7 5 3.8 2.6 2.5 4.3 3.6 2.4 2
Rainy days 6 6 7 8 9 7 5 6 7 6 6 6

Average annual rainfall in Marietta: 863.634mm (340 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 6.7 7 8.1 8.9 9.4 11 11.8 10.8 9 8.2 6.7 6.2

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 -1.4 1.2 5.5 11.1 15.4 20 22.3 21.7 18 11.8 5.8 0.6
Max °C 10.8 13.7 18.3 23.5 27.5 31.7 34.7 34.5 29.8 24.6 17.9 12.7
Min °F 29.6 34.1 41.9 52 59.6 67.9 72.1 71.1 64.4 53.2 42.4 33
Max °F 40.5 45.3 53.4 63.1 70.5 78.4 83.3 82.6 75 64.8 53.2 43.9

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 14.6 14.3 15 16.6 19 21.5 23.7 25.1 24 21.1 18.2 16
°F 58.2 57.7 59 61.9 66.2 70.8 74.6 77.1 75.3 69.9 64.8 60.9

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 18 20 22 21 19 18 16 16 16 17 18 18
mph 11 12 14 13 12 11 10 10 10 11 11 11

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
68% 66% 63% 64% 69% 67% 61% 61% 68% 66% 68% 69%

Other monthly averages

UV index Best time to go?

Marietta weather stats

Marietta weather statistics
Hottest month: July 34.4°C 93.9°F
Driest month: January 42mm 1.7ins
Sunniest month: July 11.8hrs
Coldest month: January 10.5°C 50.9°F
Wettest month: May 127mm 5ins
Warmest sea: August 25.1°C 77.2°F
Map showing location of Marietta (33.93704, -97.11668) Marietta map pin © Google

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