Marietta climate

Typical historical weather for Marietta, United States, averaged across 10 years of hourly climate data. Pick a date for a specific day.

Want today's actual conditions instead? See the current forecast for Marietta.

Annual average

18.3°C

across all months

Warmest month

34.1°C

Jul average high

Coolest month

1.2°C

Jan average low

Annual rainfall

985mm

total per year

Monthly averages

Average daily high/low temperature (band) and monthly rainfall (bars).

● Avg high● Avg low▮ Rainfall

Records on file

Hottest day

42.7°C

19 July 2022

Coldest day

-20.5°C

16 February 2021

Wettest day

133.8mm

22 September 2018

Windiest day

8.7m/s

28 October 2021