Olean, MO frost dates
Last spring frostApr 7median date
First fall frostNov 1median date
Growing season208 daysfrost-free
Hardiness zone6bZone 6b
How Olean compares
- In 8 years out of 10, the last spring frost in Olean falls between March 22 and April 27, a 36-day window. The first fall frost falls between October 19 and November 16.
- The median last frost is 5 days earlier than the Missouri median of Apr 12.
- Its 208-day growing season is longer than 86% of the 938 Missouri places with a regular frost season (state median 195 days).
- The last frost is 15 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 97 nights a year at or below 32°F.
- Compared with Columbia, MO, 64 km away, the last frost here is 2 days later than there and the growing season is 1 day shorter.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | March 22 |
| 50% (median) | April 7 |
| 10% (safe for tender plants) | April 27 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | October 19 |
| 50% (median) | November 1 |
| 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 Olean, MO
Olean, MO frost dates — last frost Apr 7, first frost Nov 1, zone 6b. whenisthelastfrost.com
Crop
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Start indoors: Jan 13 to Jan 27Transplant outside: Mar 10 to Mar 24
Start indoors: Jan 27 to Feb 10Transplant outside: Apr 21 to May 5
Start indoors: Jan 27 to Feb 10Transplant outside: Apr 21 to May 5
Start indoors: Feb 10 to Feb 24Transplant outside: Apr 14 to Apr 28
Start indoors: Feb 10 to Feb 24Transplant outside: Mar 17 to Mar 31Sow outdoors: Mar 10 to Apr 14Plant for fall: Sep 6 to Oct 4
Start indoors: Feb 10 to Feb 24Transplant outside: Mar 10 to Mar 24Sow outdoors: Mar 10 to Mar 24Plant for fall: Aug 23 to Sep 13
Start indoors: Feb 10 to Feb 24Transplant outside: Mar 24 to Apr 7Plant for fall: Jul 26 to Aug 16
Start indoors: Feb 10 to Feb 24Transplant outside: Mar 17 to Mar 31Plant for fall: Jul 26 to Aug 16
Start indoors: Feb 10 to Feb 24Transplant outside: Mar 24 to Apr 7Plant for fall: Jul 26 to Aug 16
Start indoors: Feb 24 to Mar 10Transplant outside: Apr 28 to May 12Sow outdoors: Apr 28 to May 12
Start indoors: Feb 24 to Mar 10Transplant outside: Apr 14 to Apr 28
Sow outdoors: Feb 24 to Mar 17Plant for fall: Aug 9 to Aug 30
Sow outdoors: Feb 24 to Mar 17Plant for fall: Sep 6 to Sep 27
Sow outdoors: Mar 3 to Apr 14Plant for fall: Sep 20 to Oct 11
Start indoors: Mar 10 to Mar 17Transplant outside: Apr 21 to Apr 28Sow outdoors: Apr 14 to Apr 28Plant for fall: Aug 16 to Aug 30
Start indoors: Mar 10 to Mar 17Sow outdoors: Apr 14 to Apr 28Plant for fall: Aug 23 to Sep 6
Start indoors: Mar 10 to Mar 17Sow outdoors: Apr 14 to Apr 28
Start indoors: Mar 10 to Mar 17Transplant outside: Apr 21 to May 5
Sow outdoors: Mar 17 to Apr 14Plant for fall: Aug 9 to Aug 23
Sow outdoors: Mar 17 to Apr 14Plant for fall: Aug 23 to Sep 6
Sow outdoors: Mar 17 to Apr 7
Sow outdoors: Mar 24 to Apr 21Plant for fall: Aug 23 to Sep 6
Sow outdoors: Mar 24 to Apr 14Plant for fall: Sep 6 to Sep 27
Sow outdoors: Apr 14 to May 5Plant for fall: Aug 16 to Aug 30
Sow outdoors: Apr 14 to Apr 28
Transplant outside: Apr 21 to May 12
Plant for fall: Oct 18 to Nov 22
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Olean, MO
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Jan 13 – Jan 27 | Mar 10 – Mar 24 | — | — |
| Peppers | Jan 27 – Feb 10 | Apr 21 – May 5 | — | — |
| Eggplant | Jan 27 – Feb 10 | Apr 21 – May 5 | — | — |
| Tomatoes | Feb 10 – Feb 24 | Apr 14 – Apr 28 | — | — |
| Lettuce | Feb 10 – Feb 24 | Mar 17 – Mar 31 | Mar 10 – Apr 14 | Sep 6 – Oct 4 |
| Kale | Feb 10 – Feb 24 | Mar 10 – Mar 24 | Mar 10 – Mar 24 | Aug 23 – Sep 13 |
| Broccoli | Feb 10 – Feb 24 | Mar 24 – Apr 7 | — | Jul 26 – Aug 16 |
| Cabbage | Feb 10 – Feb 24 | Mar 17 – Mar 31 | — | Jul 26 – Aug 16 |
| Cauliflower | Feb 10 – Feb 24 | Mar 24 – Apr 7 | — | Jul 26 – Aug 16 |
| Okra | Feb 24 – Mar 10 | Apr 28 – May 12 | Apr 28 – May 12 | — |
| Basil | Feb 24 – Mar 10 | Apr 14 – Apr 28 | — | — |
| Peas | — | — | Feb 24 – Mar 17 | Aug 9 – Aug 30 |
| Spinach | — | — | Feb 24 – Mar 17 | Sep 6 – Sep 27 |
| Radishes | — | — | Mar 3 – Apr 14 | Sep 20 – Oct 11 |
| Cucumbers | Mar 10 – Mar 17 | Apr 21 – Apr 28 | Apr 14 – Apr 28 | Aug 16 – Aug 30 |
| Zucchini & Summer Squash | Mar 10 – Mar 17 | — | Apr 14 – Apr 28 | Aug 23 – Sep 6 |
| Winter Squash & Pumpkins | Mar 10 – Mar 17 | — | Apr 14 – Apr 28 | — |
| Melons & Watermelon | Mar 10 – Mar 17 | Apr 21 – May 5 | — | — |
| Carrots | — | — | Mar 17 – Apr 14 | Aug 9 – Aug 23 |
| Beets | — | — | Mar 17 – Apr 14 | Aug 23 – Sep 6 |
| Potatoes | — | — | Mar 17 – Apr 7 | — |
| Swiss Chard | — | — | Mar 24 – Apr 21 | Aug 23 – Sep 6 |
| Cilantro | — | — | Mar 24 – Apr 14 | Sep 6 – Sep 27 |
| Green Beans | — | — | Apr 14 – May 5 | Aug 16 – Aug 30 |
| Sweet Corn | — | — | Apr 14 – Apr 28 | — |
| Sweet Potatoes | — | Apr 21 – May 12 | — | — |
| Garlic | — | — | — | Oct 18 – Nov 22 |
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 Eldon, MO weather station, 8 km away (elevation 925 ft (282 m)).
Frost dates near Olean
- Eldon Apr 7 · Nov 1
- Barnett Apr 7 · Nov 1
- Russellville Apr 11 · Oct 25
- Eugene Apr 7 · Nov 1
- Henley Apr 7 · Nov 1
- Lohman Apr 11 · Oct 25
- Latham Apr 11 · Oct 25
- Rocky Mount Mar 31 · Nov 3
- Tuscumbia Mar 31 · Nov 3
- California Apr 11 · Oct 25
Frequently asked questions
When is the last frost in Olean, MO?
The median last spring frost in Olean, MO is April 7. There is still about a 10% chance of frost after April 27, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Olean, MO?
The median first fall frost is November 1, with about a 10% chance of frost before October 19.
How long is the growing season in Olean, MO?
About 208 days between the median last spring frost and first fall frost.
What planting zone is Olean, MO?
Olean, MO is in USDA hardiness zone 6b.