Doe Run, MO frost dates
How Doe Run compares
- In 8 years out of 10, the last spring frost in Doe Run falls between March 28 and April 30, a 33-day window. The first fall frost falls between October 6 and November 1.
- The median last frost is 1 day later than the Missouri median of Apr 12.
- Its 191-day growing season is longer than 34% of the 938 Missouri places with a regular frost season (state median 195 days).
- The last frost is 9 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 104 nights a year at or below 32°F.
- Compared with Saint Charles, MO, 115 km away, the last frost here is 4 days later than there and the growing season is 9 days shorter.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | March 28 |
| 50% (median) | April 13 |
| 10% (safe for tender plants) | April 30 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | October 6 |
| 50% (median) | October 21 |
| 90% (late) | November 1 |
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 Doe Run, MO
Doe Run, MO frost dates — last frost Apr 13, first frost Oct 21, zone 6b. whenisthelastfrost.com
When to plant vegetables in Doe Run, MO
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Jan 19 – Feb 2 | Mar 16 – Mar 30 | — | — |
| Peppers | Feb 2 – Feb 16 | Apr 27 – May 11 | — | — |
| Eggplant | Feb 2 – Feb 16 | Apr 27 – May 11 | — | — |
| Tomatoes | Feb 16 – Mar 2 | Apr 20 – May 4 | — | — |
| Lettuce | Feb 16 – Mar 2 | Mar 23 – Apr 6 | Mar 16 – Apr 20 | Aug 26 – Sep 23 |
| Kale | Feb 16 – Mar 2 | Mar 16 – Mar 30 | Mar 16 – Mar 30 | Aug 12 – Sep 2 |
| Broccoli | Feb 16 – Mar 2 | Mar 30 – Apr 13 | — | Jul 15 – Aug 5 |
| Cabbage | Feb 16 – Mar 2 | Mar 23 – Apr 6 | — | Jul 15 – Aug 5 |
| Cauliflower | Feb 16 – Mar 2 | Mar 30 – Apr 13 | — | Jul 15 – Aug 5 |
| Okra | Mar 2 – Mar 16 | May 4 – May 18 | May 4 – May 18 | — |
| Basil | Mar 2 – Mar 16 | Apr 20 – May 4 | — | — |
| Peas | — | — | Mar 2 – Mar 23 | Jul 29 – Aug 19 |
| Spinach | — | — | Mar 2 – Mar 23 | Aug 26 – Sep 16 |
| Radishes | — | — | Mar 9 – Apr 20 | Sep 9 – Sep 30 |
| Cucumbers | Mar 16 – Mar 23 | Apr 27 – May 4 | Apr 20 – May 4 | Aug 5 – Aug 19 |
| Zucchini & Summer Squash | Mar 16 – Mar 23 | — | Apr 20 – May 4 | Aug 12 – Aug 26 |
| Winter Squash & Pumpkins | Mar 16 – Mar 23 | — | Apr 20 – May 4 | — |
| Melons & Watermelon | Mar 16 – Mar 23 | Apr 27 – May 11 | — | — |
| Carrots | — | — | Mar 23 – Apr 20 | Jul 29 – Aug 12 |
| Beets | — | — | Mar 23 – Apr 20 | Aug 12 – Aug 26 |
| Potatoes | — | — | Mar 23 – Apr 13 | — |
| Swiss Chard | — | — | Mar 30 – Apr 27 | Aug 12 – Aug 26 |
| Cilantro | — | — | Mar 30 – Apr 20 | Aug 26 – Sep 16 |
| Green Beans | — | — | Apr 20 – May 11 | Aug 5 – Aug 19 |
| Sweet Corn | — | — | Apr 20 – May 4 | — |
| Sweet Potatoes | — | Apr 27 – May 18 | — | — |
| Garlic | — | — | — | Oct 7 – Nov 11 |
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 Farmington, MO weather station, 10 km away (elevation 899 ft (274 m)).
Frost dates near Doe Run
- Farmington Apr 13 · Oct 21
- Bismarck Apr 13 · Oct 21
- Park Hills Apr 13 · Oct 21
- Knob Lick Apr 21 · Oct 16
- Leadwood Apr 13 · Oct 21
- Ironton Apr 13 · Oct 21
- Pilot Knob Apr 13 · Oct 21
- Irondale Apr 11 · Oct 28
- Bonne Terre Apr 13 · Oct 21
- Caledonia Apr 11 · Oct 28
Frequently asked questions
When is the last frost in Doe Run, MO?
The median last spring frost in Doe Run, MO is April 13. There is still about a 10% chance of frost after April 30, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Doe Run, MO?
The median first fall frost is October 21, with about a 10% chance of frost before October 6.
How long is the growing season in Doe Run, MO?
About 191 days between the median last spring frost and first fall frost.
What planting zone is Doe Run, MO?
Doe Run, MO is in USDA hardiness zone 6b.