Sedalia, MO Frost Dates
Average frost dates, USDA hardiness zone, and growing season length for Sedalia, Missouri.
Gardening in Sedalia
The Missouri State Fair City sits in the heart of the state, where rolling prairie meets the northern Ozark foothills.
Zone 6a with 183 frost-free days. The Lamine River provides valley fertility. Central Missouri soil is productive with amendment.
The Missouri State Fair puts Sedalia at the center of the state's agricultural competition each August.
What This Means for Sedalia Gardeners
The average last spring frost in Sedalia is around April 15, and the average first fall frost arrives around October 15. That gives you approximately 183 frost-free days to work with.
A solid, workable season. Most standard vegetable varieties have enough time to mature, though the longest-season crops (like sweet potatoes at 90+ days or large watermelons at 85+ days) need to be started early and chosen carefully. Indoor seed starting isn't optional — it's how you buy the extra weeks that make the difference between a good harvest and a great one.
These dates are based on NOAA 30-year Climate Normal data for the Sedalia area. Your actual frost dates could shift 2-3 weeks in either direction in any given year. Learn more about our data sources.
What to Grow in Sedalia
Sedalia's 183-day season gives you plenty of time for most vegetables with good planning. Start warm-season crops indoors to maximize your window. Cool-season crops thrive in your spring and fall shoulder seasons. Recommended starting points: tomatoes, peppers, lettuce, carrots, beans, broccoli, garlic, and basil.
See the full Missouri planting guide for all 40 plants: Missouri Planting Calendar. Or enter your zip code for exact planting dates personalized to Sedalia.
More About Zone 6A
Sedalia is in USDA Hardiness Zone 6A, which means average annual extreme minimum temperatures between -10°F to -5°F. View the full Zone 6A planting guide.
See the complete planting calendar for Missouri: Missouri Planting Calendar.
Other Cities in Missouri
Frequently Asked Questions
These dates are based on NOAA's 30-year Climate Normal data for the Sedalia area. They represent historical averages, not predictions. In any given year, the actual last frost could be 2-3 weeks earlier or later. Microclimates within Sedalia (urban heat islands, hilltops, low-lying valleys) can also shift your local frost dates by a week or more.
Start warm-season seeds indoors 6-8 weeks before your last frost (April 15) to maximize your 183-day window. Direct sow cold-hardy crops like peas and lettuce 3-4 weeks before last frost. Every week of early indoor starting matters at this season length. Enter your zip code for exact dates.