Jefferson City (MO) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Jefferson City.
Climate overview of Jefferson City
Temperatures in Jefferson City, Missouri, United States of America, vary greatly throughout the year. July is the hottest month at 31°C (88°F), while January is the coldest at 5°C (41°F).
Rain/snowfall is high, totalling around 1143 mm (45 in) per year. April is the wettest month and January the driest. The city also experiences very warm summers and cold winters. The sunniest month is July, with 10.4 hours of sunshine per day on average.
Jefferson City Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Jefferson City - and find the best time to visit.
Monthly Temperature in Jefferson City
The climate in Jefferson City is known for significant temperature differences throughout the year, making the weather dynamic. Average maximum daytime temperatures range from a very warm 31°C (88°F) in July, the warmest time of the year, to a chilly 5°C (41°F) during cooler months like January.
At night, you can expect temperatures ranging from 21°C (70°F) in July to around -6°C (21°F) during January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Jefferson City
Jefferson City has a notably wet climate with abundant precipitation, recording 1143 mm (45 in) of rain/snowfall per year. Significant seasonal changes in precipitation occur throughout the year. In the wettest month, April it receives high rainfall, averaging 139 mm (5.5 in) of precipitation, recorded across 13 rainy days. In contrast, the driest month January brings less snow/rainfall, with 40 mm (1.6 in) over 7 snowy/rainy days. For more details, please visit our Jefferson 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 Jefferson City
Seasonal changes in sunshine hours are quite dramatic in Jefferson City. While July receives considerable daily sunshine with up to 10.4 hours, December marks the darkest time of the year, where sunshine is scarce with only 4.7 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 Jefferson City by Month
The relative humidity is high throughout the year in Jefferson City.
The city experiences its highest humidity in December, reaching 73%. In April, the humidity drops to its lowest level at 63%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Jefferson City
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: October
- Warmest weather: June, July and August
- Most sunshine: June and July
- Fewer rainy days: January, February, August, September and November
- Seasonal pattern: Very warm summers and cold winters
- Coldest conditions: January, with freezing nights around -6°C (21°F).
Frequently asked questions about the climate in Jefferson City
What is the best time to visit Jefferson City?
October typically offers the most optimal weather in Jefferson City. In contrast, January, February and December tend to have less optimal conditions. Jefferson City has very warm summers and cold winters.
What temperatures can I expect in Jefferson City?
Daytime highs range from 5°C (41°F) in January to 31°C (88°F) in July. Nighttime lows range from -6°C (21°F) to 21°C (70°F). Temperatures vary considerably through the year.
How much rain does Jefferson City get?
Annual rainfall is around 1143 mm (45 in). April is the wettest month with 139 mm (5.5 in), while January is the driest with 40 mm (1.6 in).
How sunny is Jefferson City?
Jefferson City receives around 2,641 hours of sunshine per year. July is the sunniest month with 312 hours, while December is the cloudiest with just 142 hours. Overall, Jefferson City enjoys abundant sunshine.
Jefferson City 3-Day Forecast
Jefferson City (MO) 3-Day Forecast
Jefferson City on the map
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