Osceola (IA) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Osceola.
Climate overview of Osceola
Osceola, Iowa, United States of America, sees big temperature differences between seasons, with July peaking at 30°C (86°F) and January dropping to 0°C (32°F).
The city receives considerable rain/snowfall, with around 1051 mm (41 in) annually. August is the wettest month. It has a distinct dry season from January to February, with warm summers and very cold winters. The sunniest month is July, with 11.2 hours of sunshine per day on average.
Osceola Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Osceola - and find the best time to visit.
Monthly Temperature in Osceola
Visitors to Osceola can expect significant temperature changes throughout the year. Typically, average maximum daytime temperatures range from a comfortable 30°C (86°F) in July to a very cold 0°C (32°F) in the coolest month, January.
Nights vary from 18°C (64°F) in July to around -11°C (12°F) during the colder months.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Osceola
Osceola is known for its substantial rain/snowfall, with annual precipitation reaching 1051 mm (41 in). The climate in Osceola shows significant variation throughout the year. Expect high rainfall in August, the wettest month, with an average of 154 mm (6.1 in) of precipitation over 11 rainy days.
In contrast, the driest month January offers drier and sunnier days, with around 18 mm (0.7 in) of snowfall over 5 snowy days. For more details, please visit our Osceola 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 Osceola
For those who appreciate different seasons, Osceola serves as an ideal destination. Expect longer, more sun-filled days in July with an average of 11.2 hours of sunshine daily, and embrace the darker days in December, offering only 4.3 hours of daily sunlight.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Osceola by Month
The relative humidity is high throughout the year in Osceola.
The city experiences its highest humidity in January, reaching 72%. In May, the humidity drops to its lowest level at 60%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Osceola
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: September
- Warmest weather: July and August
- Most sunshine: July
- Fewest rainy days: January, February and November
- Seasonal pattern: A distinct dry season from January to February, with warm summers and very cold winters
- Coldest conditions: January, with freezing nights around -11°C (12°F).
Frequently asked questions about the climate in Osceola
What is the best time to visit Osceola?
September typically offers the most optimal weather in Osceola. In contrast, January, February, March and December tend to have less optimal conditions. Osceola has a distinct dry season from January to February, with warm summers and very cold winters.
What temperatures can I expect in Osceola?
Daytime highs range from 0°C (32°F) in January to 30°C (86°F) in July. Nighttime lows range from -11°C (12°F) to 18°C (64°F). Temperatures vary considerably through the year.
How much rain does Osceola get?
Annual rainfall is around 1051 mm (41 in). August is the wettest month with 154 mm (6.1 in), while January is the driest with 18 mm (0.7 in).
How sunny is Osceola?
Osceola receives around 2,700 hours of sunshine per year. July is the sunniest month with 335 hours, while December is the cloudiest with just 129 hours. Overall, Osceola enjoys abundant sunshine.
Osceola 3-Day Forecast
Osceola (IA) 3-Day Forecast
Osceola on the map
Osceola is highlighted - select any city to see its climate.
Popular this month
Where to go in July - average daytime high across popular destinations.
Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
Yosemite National Park is definitely worth a visit
Vast forests, blue lakes, towering sequoias, and majestic waterfalls hint at the beauty of Yosemite National Park—a true natural masterpiece.
The 10 most alternative cities in the United States
Discover the top 10 fun and alternative U.S. cities rich in art, culture, and adventure. From Portland's hippy charm to Sedona's stunning landscapes.
Sedona: Explore Majestic Red Rock Landscapes
A picturesque artists' town surrounded by red rocks and known for its spirituality, vortex energy, and stunning hikes like Cathedral Rock.
10 most idyllic villages to visit in the United States
Discover 10 idyllic villages in the USA, from California to Vermont. Explore their unique charm, rich history, stunning nature, and vibrant arts scenes.