Saint Joseph (MO) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Saint Joseph.
Climate overview of Saint Joseph
Saint Joseph, Missouri, United States of America, experiences significant temperature variation throughout the year. Summers bring daytime highs of 31°C (88°F) in July, while winters cool to 3°C (37°F) in January.
With around 1011 mm (40 in) of annual rain/snowfall, Saint Joseph has a notably wet climate. However, this rain/snowfall is not evenly distributed — the city has a distinct dry season from January to February, with very warm summers and cold winters. The wettest month is May. The sunniest month is July, with 10.8 hours of sunshine per day on average.
Saint Joseph Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Saint Joseph - and find the best time to visit.
Monthly Temperature in Saint Joseph
Depending on the time of the year, temperatures range from very warm to chilly in Saint Joseph. Average daytime temperatures reach a very warm 31°C (88°F) in July. In January, the coolest month of the year, temperatures drop to a chilly 3°C (37°F).
At night, temperatures range from around 20°C (68°F) in July to -9°C (16°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Saint Joseph
Saint Joseph has a relatively rain/snowy climate with high precipitation levels, averaging 1011 mm (40 in) of rain/snowfall annually. Saint Joseph can be quite wet during May, receiving approximately 135 mm (5.3 in) of precipitation over 13 rainy days.
In contrast, during the driest month (January), you will experience much drier conditions, with 18 mm (0.7 in) of precipitation spread across 5 snowy/rainy days. For more details, please visit our Saint Joseph 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 Saint Joseph
Saint Joseph can be enjoyed more throughout the sunniest month of July under a blue sky, with approximately 10.8 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 4.9 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Saint Joseph by Month
The relative humidity is high throughout the year in Saint Joseph.
The city experiences its highest humidity in September, reaching 71%. 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 Saint Joseph
Each month is rated for comfortable sightseeing weather — mild temperatures and low rainfall. Tap a month for its full averages; your ideal time may differ for a beach or winter trip (see below).
- Best overall: October
- Warmest weather: July and August
- Most sunshine: July
- Fewest rainy days: January, February and November
- Climate seasons: a distinct dry season from January to February, with very warm summers and cold winters
- Best for winter weather: January, with freezing nights around -9°C (16°F).
Frequently asked questions about the climate in Saint Joseph
What is the best time to visit Saint Joseph?
October typically offers the most optimal weather in Saint Joseph. In contrast, January, February and December tend to have less optimal conditions. Saint Joseph has a distinct dry season from January to February, with very warm summers and cold winters.
What temperatures can I expect in Saint Joseph?
Daytime highs range from 3°C (37°F) in January to 31°C (88°F) in July. Nighttime lows range from -9°C (16°F) to 20°C (68°F). Temperatures vary considerably through the year.
How much rain does Saint Joseph get?
Annual rainfall is around 1011 mm (40 in). May is the wettest month with 135 mm (5.3 in), while January is the driest with 18 mm (0.7 in).
How sunny is Saint Joseph?
Saint Joseph receives around 2,787 hours of sunshine per year. July is the sunniest month with 323 hours, while December is the cloudiest with just 146 hours. Overall, Saint Joseph enjoys abundant sunshine.
Saint Joseph 3-Day Forecast
Saint Joseph (MO) 3-Day Forecast
Saint Joseph on the map
Saint Joseph 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.