Montreal, MO frost dates
Last spring frostApr 8median date
First fall frostOct 28median date
Growing season203 daysfrost-free
Hardiness zone6bZone 6b
How Montreal compares
- In 8 years out of 10, the last spring frost in Montreal falls between March 26 and April 26, a 31-day window. The first fall frost falls between October 15 and November 9.
- The median last frost is 4 days earlier than the Missouri median of Apr 12.
- Its 203-day growing season is longer than 73% of the 938 Missouri places with a regular frost season (state median 195 days).
- The last frost is 14 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 101 nights a year at or below 32°F.
- Compared with Springfield, MO, 108 km away, the last frost here is 4 days later than there and the growing season is 3 days shorter.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | March 26 |
| 50% (median) | April 8 |
| 10% (safe for tender plants) | April 26 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | October 15 |
| 50% (median) | October 28 |
| 90% (late) | November 9 |
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 Montreal, MO
Montreal, MO frost dates — last frost Apr 8, first frost Oct 28, zone 6b. whenisthelastfrost.com
Crop
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Start indoors: Jan 14 to Jan 28Transplant outside: Mar 11 to Mar 25
Start indoors: Jan 28 to Feb 11Transplant outside: Apr 22 to May 6
Start indoors: Jan 28 to Feb 11Transplant outside: Apr 22 to May 6
Start indoors: Feb 11 to Feb 25Transplant outside: Apr 15 to Apr 29
Start indoors: Feb 11 to Feb 25Transplant outside: Mar 18 to Apr 1Sow outdoors: Mar 11 to Apr 15Plant for fall: Sep 2 to Sep 30
Start indoors: Feb 11 to Feb 25Transplant outside: Mar 11 to Mar 25Sow outdoors: Mar 11 to Mar 25Plant for fall: Aug 19 to Sep 9
Start indoors: Feb 11 to Feb 25Transplant outside: Mar 25 to Apr 8Plant for fall: Jul 22 to Aug 12
Start indoors: Feb 11 to Feb 25Transplant outside: Mar 18 to Apr 1Plant for fall: Jul 22 to Aug 12
Start indoors: Feb 11 to Feb 25Transplant outside: Mar 25 to Apr 8Plant for fall: Jul 22 to Aug 12
Start indoors: Feb 25 to Mar 11Transplant outside: Apr 29 to May 13Sow outdoors: Apr 29 to May 13
Start indoors: Feb 25 to Mar 11Transplant outside: Apr 15 to Apr 29
Sow outdoors: Feb 25 to Mar 18Plant for fall: Aug 5 to Aug 26
Sow outdoors: Feb 25 to Mar 18Plant for fall: Sep 2 to Sep 23
Sow outdoors: Mar 4 to Apr 15Plant for fall: Sep 16 to Oct 7
Start indoors: Mar 11 to Mar 18Transplant outside: Apr 22 to Apr 29Sow outdoors: Apr 15 to Apr 29Plant for fall: Aug 12 to Aug 26
Start indoors: Mar 11 to Mar 18Sow outdoors: Apr 15 to Apr 29Plant for fall: Aug 19 to Sep 2
Start indoors: Mar 11 to Mar 18Sow outdoors: Apr 15 to Apr 29
Start indoors: Mar 11 to Mar 18Transplant outside: Apr 22 to May 6
Sow outdoors: Mar 18 to Apr 15Plant for fall: Aug 5 to Aug 19
Sow outdoors: Mar 18 to Apr 15Plant for fall: Aug 19 to Sep 2
Sow outdoors: Mar 18 to Apr 8
Sow outdoors: Mar 25 to Apr 22Plant for fall: Aug 19 to Sep 2
Sow outdoors: Mar 25 to Apr 15Plant for fall: Sep 2 to Sep 23
Sow outdoors: Apr 15 to May 6Plant for fall: Aug 12 to Aug 26
Sow outdoors: Apr 15 to Apr 29
Transplant outside: Apr 22 to May 13
Plant for fall: Oct 14 to Nov 18
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Montreal, MO
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Jan 14 – Jan 28 | Mar 11 – Mar 25 | — | — |
| Peppers | Jan 28 – Feb 11 | Apr 22 – May 6 | — | — |
| Eggplant | Jan 28 – Feb 11 | Apr 22 – May 6 | — | — |
| Tomatoes | Feb 11 – Feb 25 | Apr 15 – Apr 29 | — | — |
| Lettuce | Feb 11 – Feb 25 | Mar 18 – Apr 1 | Mar 11 – Apr 15 | Sep 2 – Sep 30 |
| Kale | Feb 11 – Feb 25 | Mar 11 – Mar 25 | Mar 11 – Mar 25 | Aug 19 – Sep 9 |
| Broccoli | Feb 11 – Feb 25 | Mar 25 – Apr 8 | — | Jul 22 – Aug 12 |
| Cabbage | Feb 11 – Feb 25 | Mar 18 – Apr 1 | — | Jul 22 – Aug 12 |
| Cauliflower | Feb 11 – Feb 25 | Mar 25 – Apr 8 | — | Jul 22 – Aug 12 |
| Okra | Feb 25 – Mar 11 | Apr 29 – May 13 | Apr 29 – May 13 | — |
| Basil | Feb 25 – Mar 11 | Apr 15 – Apr 29 | — | — |
| Peas | — | — | Feb 25 – Mar 18 | Aug 5 – Aug 26 |
| Spinach | — | — | Feb 25 – Mar 18 | Sep 2 – Sep 23 |
| Radishes | — | — | Mar 4 – Apr 15 | Sep 16 – Oct 7 |
| Cucumbers | Mar 11 – Mar 18 | Apr 22 – Apr 29 | Apr 15 – Apr 29 | Aug 12 – Aug 26 |
| Zucchini & Summer Squash | Mar 11 – Mar 18 | — | Apr 15 – Apr 29 | Aug 19 – Sep 2 |
| Winter Squash & Pumpkins | Mar 11 – Mar 18 | — | Apr 15 – Apr 29 | — |
| Melons & Watermelon | Mar 11 – Mar 18 | Apr 22 – May 6 | — | — |
| Carrots | — | — | Mar 18 – Apr 15 | Aug 5 – Aug 19 |
| Beets | — | — | Mar 18 – Apr 15 | Aug 19 – Sep 2 |
| Potatoes | — | — | Mar 18 – Apr 8 | — |
| Swiss Chard | — | — | Mar 25 – Apr 22 | Aug 19 – Sep 2 |
| Cilantro | — | — | Mar 25 – Apr 15 | Sep 2 – Sep 23 |
| Green Beans | — | — | Apr 15 – May 6 | Aug 12 – Aug 26 |
| Sweet Corn | — | — | Apr 15 – Apr 29 | — |
| Sweet Potatoes | — | Apr 22 – May 13 | — | — |
| Garlic | — | — | — | Oct 14 – Nov 18 |
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 Iberia, MO weather station, 24 km away (elevation 938 ft (286 m)).
Frost dates near Montreal
- Brumley Apr 8 · Oct 28
- Stoutland Apr 15 · Oct 21
- Linn Creek Mar 31 · Nov 3
- Camdenton Mar 31 · Nov 3
- Richland Apr 15 · Oct 21
- Osage Beach Mar 31 · Nov 3
- Kaiser Mar 31 · Nov 3
- Ulman Apr 8 · Oct 28
- Eldridge Apr 17 · Oct 21
- Crocker Apr 15 · Oct 21
Frequently asked questions
When is the last frost in Montreal, MO?
The median last spring frost in Montreal, MO is April 8. There is still about a 10% chance of frost after April 26, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Montreal, MO?
The median first fall frost is October 28, with about a 10% chance of frost before October 15.
How long is the growing season in Montreal, MO?
About 203 days between the median last spring frost and first fall frost.
What planting zone is Montreal, MO?
Montreal, MO is in USDA hardiness zone 6b.