December in Missouri brings a classic winter transition, with crisp air, increasing clouds, and the first reliable chances for snow. Across the state, average highs slide from the mid 40s to low 30s Fahrenheit, while overnight lows often drop below freezing, setting the stage for holiday season weather.
Residents and visitors planning outdoor activities, travel, or holiday events need clear details on temperature trends, precipitation, and regional differences. The following sections break down what to expect in major city areas, how conditions vary by region, and practical tips for staying comfortable and safe.
| Region | Avg High (°F) | Avg Low (°F) | Typical Snowfall (inches) |
|---|---|---|---|
| St. Louis Metro | 42 | 26 | 4 |
| Kansas City Metro | 41 | 24 | 5 |
| Springfield Area | 39 | 22 | 6 |
| Northern Border Counties | 36 | 19 | 8 |
| Ozark Highlands | 38 | 20 | 7 |
December Temperature Trends By Region
Across Missouri, December temperatures show a north to south gradient, with the far north typically a few degrees cooler than the Bootheel. In St. Louis and Kansas City, daily highs often hover around 40°F, but sunny afternoons can feel milder while evening wind chills drop the perceived temperature.
Inland areas such as Springfield and the Ozarks experience more frequent dips into the teens and twenties at night, and these regions see higher average snowfall totals. Understanding these regional patterns helps you choose appropriate clothing, plan commutes, and adjust holiday travel schedules.
Snowfall And Winter Precipitation Patterns
December is one of the snowier months in Missouri, though accumulation can be variable. Winter precipitation frequently arrives as a mix of rain, sleet, and snow, especially in southern counties where temperatures hover near freezing during storm events.
Systems that track farther north bring pure snow to northern sections, sometimes producing several inches in a single storm. Monitoring forecasts in the days leading up to a winter event is essential for school closures, road conditions, and holiday plans.
Holiday Travel And Daily Commute Impacts
The holiday period around Christmas and New Year’s amplifies the effect of winter weather on Missouri roads. Icy patches develop quickly after rain or snow, particularly on bridges, overpasses, and shaded highways, creating hazardous conditions for drivers.
Planned travel near holidays should include extra time, charged communication devices, and emergency supplies. Local governments often deploy salt and sand, but cautious speeds and patience remain the best strategies for safe arrival.
Preparing Homes And Outdoor Activities
Preparing homes for cold snaps helps maintain comfort and prevents weather related damage. Insulating exposed pipes, checking attic ventilation, and servicing heating systems before the coldest weeks reduce the risk of breakdowns during peak demand.
Outdoor enthusiasts can still enjoy winter activities by timing outings around the warmest parts of the day and dressing in layers. Cross country skiing, ice fishing, and snowshoeing are popular across the state when conditions are stable and forecasts are understood.
Key Takeaways For December In Missouri
- Expect daytime highs near 40°F and overnight lows often below freezing, with a north to south temperature gradient.
- Plan for snow and mixed precipitation, especially around holidays, and monitor forecasts frequently.
- Increase following distances and slow down on roads, as ice can form quickly after precipitation.
- Prepare homes with pipe insulation and heating system checks to avoid weather related emergencies.
- Keep an emergency kit in vehicles and allow extra travel time during the holiday period.
FAQ
Reader questions
How cold does it usually get in Missouri during December nights?
Statewide average overnight lows range from about 19°F in the north to 24°F in the far south, with frequent freezes and occasional dips into single digits during strong cold outbreaks.
Does it snow in Missouri in December, and how much accumulates?
Yes, snow is common in December, with statewide averages between 4 and 8 inches, though local totals can be higher in northern and elevated areas during active winter storms.
What is the best way to handle holiday travel in Missouri winter weather?
Allow extra time, check real time road conditions before departure, carry an emergency kit, and be prepared to adjust plans if forecasts call for ice or heavy snow.
What should I keep in my car during December in case of a winter weather emergency?
Keep a winter emergency kit with warm clothing, blankets, a flashlight, water, nonperishable snacks, a fully charged phone, and traction aids such as sand or cat litter for unexpected stops.