Riverside, MO frost dates
Last spring frostApr 4median date
First fall frostNov 2median date
Growing season212 daysfrost-free
Hardiness zone6bZone 6b
How Riverside compares
- In 8 years out of 10, the last spring frost in Riverside 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.
- Riverside shares its weather station with Kansas City, MO, 9 km away, so the two have the same frost dates.
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 Riverside, MO
Riverside, MO frost dates — last frost Apr 4, first frost Nov 2, zone 6b. whenisthelastfrost.com
Crop
JFMAMJJASOND
Start indoors: Jan 10 to Jan 24Transplant outside: Mar 7 to Mar 21
Start indoors: Jan 24 to Feb 7Transplant outside: Apr 18 to May 2
Start indoors: Jan 24 to Feb 7Transplant outside: Apr 18 to May 2
Start indoors: Feb 7 to Feb 21Transplant outside: Apr 11 to Apr 25
Start indoors: Feb 7 to Feb 21Transplant outside: Mar 14 to Mar 28Sow outdoors: Mar 7 to Apr 11Plant for fall: Sep 7 to Oct 5
Start indoors: Feb 7 to Feb 21Transplant outside: Mar 7 to Mar 21Sow outdoors: Mar 7 to Mar 21Plant for fall: Aug 24 to Sep 14
Start indoors: Feb 7 to Feb 21Transplant outside: Mar 21 to Apr 4Plant for fall: Jul 27 to Aug 17
Start indoors: Feb 7 to Feb 21Transplant outside: Mar 14 to Mar 28Plant for fall: Jul 27 to Aug 17
Start indoors: Feb 7 to Feb 21Transplant outside: Mar 21 to Apr 4Plant for fall: Jul 27 to Aug 17
Start indoors: Feb 21 to Mar 7Transplant outside: Apr 25 to May 9Sow outdoors: Apr 25 to May 9
Start indoors: Feb 21 to Mar 7Transplant outside: Apr 11 to Apr 25
Sow outdoors: Feb 21 to Mar 14Plant for fall: Aug 10 to Aug 31
Sow outdoors: Feb 21 to Mar 14Plant for fall: Sep 7 to Sep 28
Sow outdoors: Feb 28 to Apr 11Plant for fall: Sep 21 to Oct 12
Start indoors: Mar 7 to Mar 14Transplant outside: Apr 18 to Apr 25Sow outdoors: Apr 11 to Apr 25Plant for fall: Aug 17 to Aug 31
Start indoors: Mar 7 to Mar 14Sow outdoors: Apr 11 to Apr 25Plant for fall: Aug 24 to Sep 7
Start indoors: Mar 7 to Mar 14Sow outdoors: Apr 11 to Apr 25
Start indoors: Mar 7 to Mar 14Transplant outside: Apr 18 to May 2
Sow outdoors: Mar 14 to Apr 11Plant for fall: Aug 10 to Aug 24
Sow outdoors: Mar 14 to Apr 11Plant for fall: Aug 24 to Sep 7
Sow outdoors: Mar 14 to Apr 4
Sow outdoors: Mar 21 to Apr 18Plant for fall: Aug 24 to Sep 7
Sow outdoors: Mar 21 to Apr 11Plant for fall: Sep 7 to Sep 28
Sow outdoors: Apr 11 to May 2Plant for fall: Aug 17 to Aug 31
Sow outdoors: Apr 11 to Apr 25
Transplant outside: Apr 18 to May 9
Plant for fall: Oct 19 to Nov 23
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Riverside, 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, 7 km away (elevation 741 ft (226 m)).
Frost dates near Riverside
- Kansas City Apr 4 · Nov 2
- Waldron Apr 13 · Oct 24
- Liberty Apr 19 · Oct 17
- Farley Apr 13 · Oct 24
- Independence Apr 10 · Oct 27
- Platte City Apr 13 · Oct 24
- Smithville Apr 18 · Oct 20
- Missouri City Apr 19 · Oct 17
- Kearney Apr 19 · Oct 17
- Camden Point Apr 13 · Oct 24
Frequently asked questions
When is the last frost in Riverside, MO?
The median last spring frost in Riverside, 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 Riverside, 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 Riverside, MO?
About 212 days between the median last spring frost and first fall frost.
What planting zone is Riverside, MO?
Riverside, MO is in USDA hardiness zone 6b.