Montgomery, IN frost dates
Last spring frostApr 10median date
First fall frostOct 25median date
Growing season198 daysfrost-free
Hardiness zone6bZone 6b
How Montgomery compares
- In 8 years out of 10, the last spring frost in Montgomery falls between March 27 and April 27, a 31-day window. The first fall frost falls between October 11 and November 7.
- The median last frost is 12 days earlier than the Indiana median of Apr 22.
- Its 198-day growing season is longer than 85% of the 733 Indiana places with a regular frost season (state median 182 days).
- The last frost is 12 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 90 nights a year at or below 32°F.
- Compared with Bloomington, IN, 74 km away, the last frost here is 5 days earlier than there and the growing season is 4 days longer.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | March 27 |
| 50% (median) | April 10 |
| 10% (safe for tender plants) | April 27 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | October 11 |
| 50% (median) | October 25 |
| 90% (late) | November 7 |
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 Montgomery, IN
Montgomery, IN frost dates — last frost Apr 10, first frost Oct 25, zone 6b. whenisthelastfrost.com
Crop
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Start indoors: Jan 16 to Jan 30Transplant outside: Mar 13 to Mar 27
Start indoors: Jan 30 to Feb 13Transplant outside: Apr 24 to May 8
Start indoors: Jan 30 to Feb 13Transplant outside: Apr 24 to May 8
Start indoors: Feb 13 to Feb 27Transplant outside: Apr 17 to May 1
Start indoors: Feb 13 to Feb 27Transplant outside: Mar 20 to Apr 3Sow outdoors: Mar 13 to Apr 17Plant for fall: Aug 30 to Sep 27
Start indoors: Feb 13 to Feb 27Transplant outside: Mar 13 to Mar 27Sow outdoors: Mar 13 to Mar 27Plant for fall: Aug 16 to Sep 6
Start indoors: Feb 13 to Feb 27Transplant outside: Mar 27 to Apr 10Plant for fall: Jul 19 to Aug 9
Start indoors: Feb 13 to Feb 27Transplant outside: Mar 20 to Apr 3Plant for fall: Jul 19 to Aug 9
Start indoors: Feb 13 to Feb 27Transplant outside: Mar 27 to Apr 10Plant for fall: Jul 19 to Aug 9
Start indoors: Feb 27 to Mar 13Transplant outside: May 1 to May 15Sow outdoors: May 1 to May 15
Start indoors: Feb 27 to Mar 13Transplant outside: Apr 17 to May 1
Sow outdoors: Feb 27 to Mar 20Plant for fall: Aug 2 to Aug 23
Sow outdoors: Feb 27 to Mar 20Plant for fall: Aug 30 to Sep 20
Sow outdoors: Mar 6 to Apr 17Plant for fall: Sep 13 to Oct 4
Start indoors: Mar 13 to Mar 20Transplant outside: Apr 24 to May 1Sow outdoors: Apr 17 to May 1Plant for fall: Aug 9 to Aug 23
Start indoors: Mar 13 to Mar 20Sow outdoors: Apr 17 to May 1Plant for fall: Aug 16 to Aug 30
Start indoors: Mar 13 to Mar 20Sow outdoors: Apr 17 to May 1
Start indoors: Mar 13 to Mar 20Transplant outside: Apr 24 to May 8
Sow outdoors: Mar 20 to Apr 17Plant for fall: Aug 2 to Aug 16
Sow outdoors: Mar 20 to Apr 17Plant for fall: Aug 16 to Aug 30
Sow outdoors: Mar 20 to Apr 10
Sow outdoors: Mar 27 to Apr 24Plant for fall: Aug 16 to Aug 30
Sow outdoors: Mar 27 to Apr 17Plant for fall: Aug 30 to Sep 20
Sow outdoors: Apr 17 to May 8Plant for fall: Aug 9 to Aug 23
Sow outdoors: Apr 17 to May 1
Transplant outside: Apr 24 to May 15
Plant for fall: Oct 11 to Nov 15
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Montgomery, IN
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Jan 16 – Jan 30 | Mar 13 – Mar 27 | — | — |
| Peppers | Jan 30 – Feb 13 | Apr 24 – May 8 | — | — |
| Eggplant | Jan 30 – Feb 13 | Apr 24 – May 8 | — | — |
| Tomatoes | Feb 13 – Feb 27 | Apr 17 – May 1 | — | — |
| Lettuce | Feb 13 – Feb 27 | Mar 20 – Apr 3 | Mar 13 – Apr 17 | Aug 30 – Sep 27 |
| Kale | Feb 13 – Feb 27 | Mar 13 – Mar 27 | Mar 13 – Mar 27 | Aug 16 – Sep 6 |
| Broccoli | Feb 13 – Feb 27 | Mar 27 – Apr 10 | — | Jul 19 – Aug 9 |
| Cabbage | Feb 13 – Feb 27 | Mar 20 – Apr 3 | — | Jul 19 – Aug 9 |
| Cauliflower | Feb 13 – Feb 27 | Mar 27 – Apr 10 | — | Jul 19 – Aug 9 |
| Okra | Feb 27 – Mar 13 | May 1 – May 15 | May 1 – May 15 | — |
| Basil | Feb 27 – Mar 13 | Apr 17 – May 1 | — | — |
| Peas | — | — | Feb 27 – Mar 20 | Aug 2 – Aug 23 |
| Spinach | — | — | Feb 27 – Mar 20 | Aug 30 – Sep 20 |
| Radishes | — | — | Mar 6 – Apr 17 | Sep 13 – Oct 4 |
| Cucumbers | Mar 13 – Mar 20 | Apr 24 – May 1 | Apr 17 – May 1 | Aug 9 – Aug 23 |
| Zucchini & Summer Squash | Mar 13 – Mar 20 | — | Apr 17 – May 1 | Aug 16 – Aug 30 |
| Winter Squash & Pumpkins | Mar 13 – Mar 20 | — | Apr 17 – May 1 | — |
| Melons & Watermelon | Mar 13 – Mar 20 | Apr 24 – May 8 | — | — |
| Carrots | — | — | Mar 20 – Apr 17 | Aug 2 – Aug 16 |
| Beets | — | — | Mar 20 – Apr 17 | Aug 16 – Aug 30 |
| Potatoes | — | — | Mar 20 – Apr 10 | — |
| Swiss Chard | — | — | Mar 27 – Apr 24 | Aug 16 – Aug 30 |
| Cilantro | — | — | Mar 27 – Apr 17 | Aug 30 – Sep 20 |
| Green Beans | — | — | Apr 17 – May 8 | Aug 9 – Aug 23 |
| Sweet Corn | — | — | Apr 17 – May 1 | — |
| Sweet Potatoes | — | Apr 24 – May 15 | — | — |
| Garlic | — | — | — | Oct 11 – Nov 15 |
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 Washington 1 W, IN weather station, 13 km away (elevation 482 ft (147 m)).
Frost dates near Montgomery
- Cannelburg Apr 10 · Oct 25
- Washington Apr 10 · Oct 25
- Loogootee Apr 15 · Oct 23
- Plainville Apr 9 · Oct 25
- Odon Apr 9 · Oct 25
- Otwell Apr 20 · Oct 22
- Wheatland Apr 10 · Oct 25
- Shoals Apr 15 · Oct 23
- Edwardsport Apr 9 · Oct 30
- Elnora Apr 9 · Oct 25
Frequently asked questions
When is the last frost in Montgomery, IN?
The median last spring frost in Montgomery, IN is April 10. 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 Montgomery, IN?
The median first fall frost is October 25, with about a 10% chance of frost before October 11.
How long is the growing season in Montgomery, IN?
About 198 days between the median last spring frost and first fall frost.
What planting zone is Montgomery, IN?
Montgomery, IN is in USDA hardiness zone 6b.