Mason City (IA) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Mason City.
Climate overview of Mason City
Mason City, Iowa, United States of America, sees big temperature differences between seasons, with July peaking at 28°C (82°F) and January dropping to -5°C (23°F).
With around 920 mm (36 in) of annual rain/snowfall, the city has moderate precipitation levels. June is the wettest month and January the driest. It also has a distinct dry season from January to February. Sunshine peaks in July, when the city sees around 11.4 hours of sunshine per day.
Mason City Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Mason City — and find the best time to visit.
Monthly Temperature in Mason City
Visitors to Mason City can expect significant temperature changes throughout the year. Typically, average maximum daytime temperatures range from a comfortable 28°C (82°F) in July to a very cold -5°C (23°F) in the coolest month, January.
Nights vary from 16°C (61°F) in July to around -14°C (7°F) during the colder months.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Mason City
Generally, Mason City experiences moderate precipitation patterns, averaging 920 mm (36 in) yearly. The climate in Mason City shows significant variation throughout the year. Expect high rainfall in June, the wettest month, with an average of 145 mm (5.7 in) of precipitation over 13 rainy days.
In contrast, the driest month January offers drier and sunnier days, with around 18 mm (0.7 in) of snowfall over 7 snowy days. For more details, please visit our Mason City Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Mason City
For those who appreciate different seasons, Mason City serves as an ideal destination. Expect longer, more sun-filled days in July with an average of 11.4 hours of sunshine daily, and embrace the darker days in December, offering only 3.9 hours of daily sunlight.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Best Time to Visit Mason City
The weather does bring rainfall during this period, between 84 mm (3.3 in) and 145 mm (5.7 in). Planning your next adventure but unsure where to go? Our climate tool suggests perfect locations tailored to your preferred weather conditions. Discover your ideal travel destination with our weather planner.
Frequently asked questions about the climate in Mason City
What is the best time to visit Mason City?
July, August and September typically offer the most optimal weather in Mason City. In contrast, January, February, March, November and December tend to have less optimal conditions. Mason City has a distinct dry season from January to February.
What temperatures can I expect in Mason City?
Daytime highs range from -5°C (23°F) in January to 28°C (82°F) in July. Nighttime lows range from -14°C (7°F) to 16°C (61°F). Temperatures vary considerably through the year.
How much rain does Mason City get?
Annual rainfall is around 920 mm (36 in). June is the wettest month with 145 mm (5.7 in), while January is the driest with 18 mm (0.7 in).
How sunny is Mason City?
Mason City receives around 2,620 hours of sunshine per year. July is the sunniest month with 342 hours, while December is the cloudiest with just 118 hours. Overall, Mason City enjoys abundant sunshine.
Mason City 3-Day Forecast
Mason City (IA) 3-Day Forecast
Mason City on the map
Mason City is highlighted — select any city to see its climate.
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