Frost dates for 64121 — Kansas City, MO
How Kansas City compares
- In 8 years out of 10, the last spring frost in Kansas City falls between March 17 and April 20, a 34-day window. The first fall frost falls between October 21 and November 16.
- The median last frost is 8 days earlier than the Missouri median of Apr 12.
- Its 212-day growing season is longer than 90% of the 938 Missouri places with a regular frost season (state median 195 days).
- The last frost is 18 days earlier than the zone 6b median of Apr 22. Hardiness zones measure winter cold, not season length, so use these dates rather than a zone 6b chart.
- The weather station records an average of 93 nights a year at or below 32°F.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | March 17 |
| 50% (median) | April 4 |
| 10% (safe for tender plants) | April 20 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | October 21 |
| 50% (median) | November 2 |
| 90% (late) | November 16 |
Frost here means 32°F (0°C). A median date means half of years have their last frost earlier and half later.
Planting calendar for Kansas City, MO
Frost dates for 64121 — Kansas City, MO — last frost Apr 4, first frost Nov 2, zone 6b. whenisthelastfrost.com
When to plant vegetables in Kansas City, MO
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Jan 10 – Jan 24 | Mar 7 – Mar 21 | — | — |
| Peppers | Jan 24 – Feb 7 | Apr 18 – May 2 | — | — |
| Eggplant | Jan 24 – Feb 7 | Apr 18 – May 2 | — | — |
| Tomatoes | Feb 7 – Feb 21 | Apr 11 – Apr 25 | — | — |
| Lettuce | Feb 7 – Feb 21 | Mar 14 – Mar 28 | Mar 7 – Apr 11 | Sep 7 – Oct 5 |
| Kale | Feb 7 – Feb 21 | Mar 7 – Mar 21 | Mar 7 – Mar 21 | Aug 24 – Sep 14 |
| Broccoli | Feb 7 – Feb 21 | Mar 21 – Apr 4 | — | Jul 27 – Aug 17 |
| Cabbage | Feb 7 – Feb 21 | Mar 14 – Mar 28 | — | Jul 27 – Aug 17 |
| Cauliflower | Feb 7 – Feb 21 | Mar 21 – Apr 4 | — | Jul 27 – Aug 17 |
| Okra | Feb 21 – Mar 7 | Apr 25 – May 9 | Apr 25 – May 9 | — |
| Basil | Feb 21 – Mar 7 | Apr 11 – Apr 25 | — | — |
| Peas | — | — | Feb 21 – Mar 14 | Aug 10 – Aug 31 |
| Spinach | — | — | Feb 21 – Mar 14 | Sep 7 – Sep 28 |
| Radishes | — | — | Feb 28 – Apr 11 | Sep 21 – Oct 12 |
| Cucumbers | Mar 7 – Mar 14 | Apr 18 – Apr 25 | Apr 11 – Apr 25 | Aug 17 – Aug 31 |
| Zucchini & Summer Squash | Mar 7 – Mar 14 | — | Apr 11 – Apr 25 | Aug 24 – Sep 7 |
| Winter Squash & Pumpkins | Mar 7 – Mar 14 | — | Apr 11 – Apr 25 | — |
| Melons & Watermelon | Mar 7 – Mar 14 | Apr 18 – May 2 | — | — |
| Carrots | — | — | Mar 14 – Apr 11 | Aug 10 – Aug 24 |
| Beets | — | — | Mar 14 – Apr 11 | Aug 24 – Sep 7 |
| Potatoes | — | — | Mar 14 – Apr 4 | — |
| Swiss Chard | — | — | Mar 21 – Apr 18 | Aug 24 – Sep 7 |
| Cilantro | — | — | Mar 21 – Apr 11 | Sep 7 – Sep 28 |
| Green Beans | — | — | Apr 11 – May 2 | Aug 17 – Aug 31 |
| Sweet Corn | — | — | Apr 11 – Apr 25 | — |
| Sweet Potatoes | — | Apr 18 – May 9 | — | — |
| Garlic | — | — | — | Oct 19 – Nov 23 |
Dates come from the median frost dates and common extension-service timing. Adjust for your soil temperature, microclimate and the varieties you grow.
About these dates
Based on 1991–2020 NOAA climate normals for the Kansas City Downtown Ap, MO weather station, 3 km away (elevation 741 ft (226 m)).
ZIP codes in Kansas City: 64101 64102 64105 64106 64108 64109 64110 64111 64112 64113 64114 64116 64117 64118 64119 64120 64121 64123 64124 64125 64126 64127 64128 64129 64130 64131 64132 64133 64134 64136 64137 64138 64139 64141 64144 64145 64146 64147 64148 64149 64151 64152 64153 64154 64155 64156 64157 64158 64161 64162 64163 64164 64165 64166 64167 64168 64170 64171 64179 64180 …
Frost dates near Kansas City
- Riverside Apr 4 · Nov 2
- Independence Apr 10 · Oct 27
- Liberty Apr 19 · Oct 17
- Waldron Apr 13 · Oct 24
- Grandview Apr 7 · Oct 29
- Lees Summit Apr 7 · Oct 29
- Blue Springs Apr 7 · Oct 29
- Missouri City Apr 19 · Oct 17
Frequently asked questions
When is the last frost in Kansas City, MO?
The median last spring frost in Kansas City, MO is April 4. There is still about a 10% chance of frost after April 20, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Kansas City, MO?
The median first fall frost is November 2, with about a 10% chance of frost before October 21.
How long is the growing season in Kansas City, MO?
About 212 days between the median last spring frost and first fall frost.
What planting zone is Kansas City, MO?
Kansas City, MO is in USDA hardiness zone 6b.