Mason City climate

Typical historical weather for Mason City, 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 Mason City.

Annual average

8.9°C

across all months

Warmest month

27.6°C

Jul average high

Coolest month

-11.3°C

Jan average low

Annual rainfall

992mm

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

37.1°C

23 August 2023

Coldest day

-34.6°C

31 January 2019

Wettest day

63.6mm

27 August 2021

Windiest day

16.3m/s

24 February 2019