Harrisonville (MO) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Harrisonville.
Climate overview of Harrisonville
The climate in Harrisonville, Missouri, United States of America, is marked by large temperature swings across the seasons, ranging from 32°C (90°F) in July to 5°C (41°F) in January.
The city has a wet climate, receiving around 1128 mm (44 in) of rain/snowfall per year. Despite the high annual total, it has very warm summers and cold winters. June is the wettest month. July is the sunniest month, averaging 11.0 hours of sunshine per day.
Harrisonville Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Harrisonville - and find the best time to visit.
Monthly Temperature in Harrisonville
In Harrisonville, temperatures differ significantly between summer and winter months. On average, daytime temperatures range from a very warm 32°C (90°F) in July to a chilly 5°C (41°F) in January.
Nighttime temperatures range from 20°C (68°F) in July to -7°C (19°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Harrisonville
Harrisonville experiences significant rain/snowfall throughout the year, averaging 1128 mm (44 in) of precipitation annually. The seasons in Harrisonville bring significant changes in precipitation. The wettest month, June, receives high rainfall, with an average of 154 mm (6.1 in) of precipitation. This rainfall is distributed across 10 rainy days.
In contrast, the driest month, January, experiences much less snow/rainfall, totaling 25 mm (1 in) over 5 snowy/rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Harrisonville 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 Harrisonville
In Harrisonville, summer days are longer and more sunny, with daily sunshine hours peaking at 11.0 hours in July. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 4.9 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Harrisonville by Month
The relative humidity is high throughout the year in Harrisonville.
The city experiences its highest humidity in December, reaching 70%. In April, the humidity drops to its lowest level at 62%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Harrisonville
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: May, September and October
- Warmest weather: July and August
- Most sunshine: July
- Fewest rainy days: January, February and November
- Seasonal pattern: Very warm summers and cold winters
- Coldest conditions: January, with freezing nights around -7°C (19°F).
Frequently asked questions about the climate in Harrisonville
What is the best time to visit Harrisonville?
May, September and October typically offer the most optimal weather in Harrisonville. In contrast, February and December tend to have less optimal conditions. Harrisonville has very warm summers and cold winters.
What temperatures can I expect in Harrisonville?
Daytime highs range from 5°C (41°F) in January to 32°C (90°F) in July. Nighttime lows range from -7°C (19°F) to 20°C (68°F). Temperatures vary considerably through the year.
How much rain does Harrisonville get?
Annual rainfall is around 1128 mm (44 in). June is the wettest month with 154 mm (6.1 in), while January is the driest with 25 mm (1 in).
How sunny is Harrisonville?
Harrisonville receives around 2,803 hours of sunshine per year. July is the sunniest month with 330 hours, while December is the cloudiest with just 147 hours. Overall, Harrisonville enjoys abundant sunshine.
Harrisonville 3-Day Forecast
Harrisonville (MO) 3-Day Forecast
Harrisonville on the map
Harrisonville 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.