Kansas City · December
Run in the midday.
Cold: average high 45°F, low 30°F. Layering becomes the workout. Cold mornings warm into runnable midday hours — the windows around noon catch the warmest temperatures.
Avg high / low
45° / 30°F
Humidity
70%
Rain days
8/mo
Wind
12 mph
What December feels like in Kansas City
Sunrise
08:30
Mid-month average
Sunset
17:58
Mid-month average
Time-of-day breakdown
Morning
Steady cool air, low wind, and good light. The standard runner window in most months.
Midday
Often the warmest few hours of a cold day. If you can only run once, midday gives you the most temperate window.
Evening
Cold drops back in fast after sunset. Tight window — done before headlamp territory.
What to wear running in Kansas City in December
The kit for December in Kansas City: cold-weather layers, gloves, and ear coverage on most mornings.
December vs the surrounding months
vs November
-8° avg high
-1 rain days
Kansas City in November →
December
45°F avg high
8 rain days
Best: midday
vs January
+5° avg high
-1 rain days
Kansas City in January →
Frequently Asked Questions
What is the best time of day to run in Kansas City in December?+
Midday. Cold mornings warm into runnable midday hours — the windows around noon catch the warmest temperatures.
What's the average temperature in Kansas City in December?+
Average high 45°F, average low 30°F.
How does December compare to surrounding months in Kansas City?+
Compared to November (avg high 53°F), December is cooler. Compared to January (avg high 40°F), December is warmer.
Does it rain often in Kansas City in December?+
Expect about 8 measurable rain days in December, on average.