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Mason City (IA) Climate by Month

The graphs below provide an overview of the climate in Mason City (Iowa), the United States of America. They present long-term patterns and averages of weather conditions over a 30-year period.

Average day and night temperature

The mean minimum and maximum temperatures over the year.

Monthly precipitation

The mean monthly precipitation over the year, including rain, snow, hail etc.

Forecast for Mason City (IA)

Thu   Nov 14
9°C | 2°C
NW 18 km/h
broken clouds and no rain

broken clouds and no rain

Fri   Nov 15
12°C | 1°C
SE 18 km/h
clear and no rain

clear and no rain

Sat   Nov 16
12°C | 4°C
S 32 km/h
0.2 mm
partly cloudy and small chance of slight rain

partly cloudy and small chance of slight rain

The best time of year to visit Mason City in the United States of America

During the months of May, June and September you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:

  • When is winter in Mason City?
    The coldest season / winter is in the following months: January, February and December.
  • Which is the warmest month in Mason City?
    July has an average maximum temperature of 28°C and is the warmest month of the year.
  • Which is the coldest month in Mason City?
    The coldest month is January with an average maximum temperature of -5°C.
  • Which is the wettest month in Mason City?
    June tops the wettest month list with 145 mm of rainfall.
  • Which is the driest month in Mason City?
    January is the driest month with 18 mm of precipitation.
  • Which is the sunniest month in Mason City?
    July is the sunniest month with an average of 342 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.