Chillicothe (MO) Temperature by Month
Chillicothe, Missouri, United States of America has an average annual maximum temperature of 18°C (64°F), ranging from 3°C (37°F) in January to 31°C (88°F) in July. Below you'll find a full monthly breakdown and a comparison with cities worldwide.
Chillicothe Monthly Temperatures
Depending on the time of the year, temperatures range from very warm to cold in Chillicothe. Nighttime lows follow the same pattern, ranging from 20°C (68°F) to -9°C (16°F).
The chart below illustrates the average maximum day and minimum night temperatures in Chillicothe by month:
The minimum temperature is often recorded between 4 AM and 6 AM, while the highest temperature is usually reached at 3 PM, when the sun's heating effect is strongest.
The chart below shows the average temperature throughout the year:
Temperature: Chillicothe vs the United States of America
The map below shows the annual temperature across the United States of America. You can also select individual months if you want to compare a specific time of year.
very warm
warm
pleasant
moderate
cold
very cold
Chillicothe vs World: Temperature Compared
Chillicothe's average annual maximum temperature is 18°C (64°F). To put that in context, here's how it compares to a few well-known destinations:
Lisbon, Portugal averages 21°C (70°F) annually — warm summers, mild winters, and rain mainly in the cooler months.
On the cooler end, Oslo, Norway averages just 10°C (50°F) annually, with pleasant summers but long, cold winters.
Chicago, USA averages 15°C (59°F) annually — known for extreme seasonal swings, from bitterly cold winters to warm summers.
Tokyo, Japan averages 21°C (70°F) a year, with hot summers, cool winters, and a well-defined cherry blossom spring.
Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.
The readings come from a range of sources — land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.
Seasonal temperature shifts influence more than just how warm it feels — they also drive changes in rainfall, cloud cover, and wind patterns throughout the year.
Warmer air holds more moisture, which tends to mean heavier or more frequent rain during the warmer months. When temperatures drop in winter, any precipitation that does fall is more likely to come as snow or sleet, though in Chillicothe this rarely lasts long on the ground.
For more on Chillicothe's weather — including monthly rainfall, sunshine hours, and humidity — visit our Chillicothe climate page.
