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

12.6°C

across all months

Warmest month

29.5°C

Jul average high

Coolest month

-6°C

Jan average low

Annual rainfall

1086mm

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

36.4°C

10 June 2016

Coldest day

-28.2°C

30 January 2019

Wettest day

79.7mm

5 August 2023

Windiest day

9.6m/s

24 February 2019