When to plant in Liberty, MO
USDA Zone 6aHere are the average frost dates, USDA hardiness zone, and a month-by-month planting calendar for Liberty, Missouri — all computed from Liberty's nearest NOAA weather station.
Liberty's nearest full-normals station sits about 16 km out, so treat these as a close estimate — local microclimate can nudge your first and last frost. In zone 6a, Liberty gardeners can grow many hardy perennials, while the last and first frost still dictate the annual vegetable calendar.
Frost probability
KEARNEY 3E · 1991–2020The date the last spring and first fall frost occur, by threshold and probability. A 90% date is later in spring — and earlier in fall — than a 10% date; the 50% · 32°F row is what most gardeners plan around. These are Liberty’s own odds, recorded at KEARNEY 3E.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | May 12 | Apr 29 | Apr 14 | Sep 26 | Oct 8 | Oct 20 |
| 32°F | May 5 | Apr 19 | Apr 4 | Oct 4 | Oct 17 | Oct 30 |
| 28°F | Apr 24 | Apr 8 | Mar 22 | Oct 14 | Oct 27 | Nov 11 |
Download this table as CSV ↓ — every threshold and probability, plus this city’s planting-window dates.
What to plant now
TODAY · JULY 19Full-year planting calendar
Each bar is the exact window to take a planting action in Liberty, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 20 km · complete 32°F normalsWhen stations disagree by more than a few days, that spread is real microclimate variation — elevation, water, urban heat. Judge which station best matches your own yard.
Liberty planting FAQ
When is the last spring frost in Liberty, MO?
Plan for the last spring frost in Liberty around April 19 (the date it has a 50% chance of a 32°F freeze). Anything frost-sensitive should go out after it.
When is the first fall frost in Liberty, MO?
Expect Liberty's first fall frost near October 17 — a 50% chance of 32°F by that date. Bring in or cover tender crops ahead of it.
What hardiness zone is Liberty in?
Liberty is in USDA hardiness zone 6a. In zone 6a, winters are moderate — most common vegetables grow well in season.
How long is the growing season in Liberty?
Liberty has about 181 frost-free days — a moderate growing season — between the average last spring frost (April 19) and first fall frost (October 17).
When should I plant tomatoes in Liberty?
For Liberty, sow tomatoes indoors about February 22–March 8 and move the seedlings out around April 26, after the last spring frost.
Never miss a window in Liberty
An email when it’s time to start seeds, transplant, and sow — timed to Liberty’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Gladstone · 12 km
- Kearney · 14 km
- Kansas City · 17 km
- Independence · 18 km
- Excelsior Springs · 19 km
- Smithville · 22 km
- Raytown · 28 km
- Blue Springs · 29 km
Frost dates recorded at KEARNEY 3E, 16 km from the city center · 1991–2020 NOAA climate normals · zone from the USDA/PRISM 2023 map. How we compute this.
BlissGarden. "When to Plant in Liberty, MO — Frost Dates & Zone 6a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00234382. Retrieved from https://blissgarden.com/missouri/liberty.