Mackey, IN frost dates
Last spring frostApr 6median date
First fall frostOct 30median date
Growing season207 daysfrost-free
Hardiness zone7aZone 7a
How Mackey compares
- In 8 years out of 10, the last spring frost in Mackey falls between March 21 and April 23, a 33-day window. The first fall frost falls between October 16 and November 15.
- The median last frost is 16 days earlier than the Indiana median of Apr 22.
- Its 207-day growing season is longer than 94% of the 733 Indiana places with a regular frost season (state median 182 days).
- The last frost is 10 days earlier than the zone 7a median of Apr 16. Hardiness zones measure winter cold, not season length, so use these dates rather than a zone 7a chart.
- The weather station records an average of 91 nights a year at or below 32°F.
- Compared with Evansville, IN, 32 km away, the last frost here is 8 days later than there and the growing season is 19 days shorter.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | March 21 |
| 50% (median) | April 6 |
| 10% (safe for tender plants) | April 23 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | October 16 |
| 50% (median) | October 30 |
| 90% (late) | November 15 |
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 Mackey, IN
Mackey, IN frost dates — last frost Apr 6, first frost Oct 30, zone 7a. whenisthelastfrost.com
Crop
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Start indoors: Jan 12 to Jan 26Transplant outside: Mar 9 to Mar 23
Start indoors: Jan 26 to Feb 9Transplant outside: Apr 20 to May 4
Start indoors: Jan 26 to Feb 9Transplant outside: Apr 20 to May 4
Start indoors: Feb 9 to Feb 23Transplant outside: Apr 13 to Apr 27
Start indoors: Feb 9 to Feb 23Transplant outside: Mar 16 to Mar 30Sow outdoors: Mar 9 to Apr 13Plant for fall: Sep 4 to Oct 2
Start indoors: Feb 9 to Feb 23Transplant outside: Mar 9 to Mar 23Sow outdoors: Mar 9 to Mar 23Plant for fall: Aug 21 to Sep 11
Start indoors: Feb 9 to Feb 23Transplant outside: Mar 23 to Apr 6Plant for fall: Jul 24 to Aug 14
Start indoors: Feb 9 to Feb 23Transplant outside: Mar 16 to Mar 30Plant for fall: Jul 24 to Aug 14
Start indoors: Feb 9 to Feb 23Transplant outside: Mar 23 to Apr 6Plant for fall: Jul 24 to Aug 14
Start indoors: Feb 23 to Mar 9Transplant outside: Apr 27 to May 11Sow outdoors: Apr 27 to May 11
Start indoors: Feb 23 to Mar 9Transplant outside: Apr 13 to Apr 27
Sow outdoors: Feb 23 to Mar 16Plant for fall: Aug 7 to Aug 28
Sow outdoors: Feb 23 to Mar 16Plant for fall: Sep 4 to Sep 25
Sow outdoors: Mar 2 to Apr 13Plant for fall: Sep 18 to Oct 9
Start indoors: Mar 9 to Mar 16Transplant outside: Apr 20 to Apr 27Sow outdoors: Apr 13 to Apr 27Plant for fall: Aug 14 to Aug 28
Start indoors: Mar 9 to Mar 16Sow outdoors: Apr 13 to Apr 27Plant for fall: Aug 21 to Sep 4
Start indoors: Mar 9 to Mar 16Sow outdoors: Apr 13 to Apr 27
Start indoors: Mar 9 to Mar 16Transplant outside: Apr 20 to May 4
Sow outdoors: Mar 16 to Apr 13Plant for fall: Aug 7 to Aug 21
Sow outdoors: Mar 16 to Apr 13Plant for fall: Aug 21 to Sep 4
Sow outdoors: Mar 16 to Apr 6
Sow outdoors: Mar 23 to Apr 20Plant for fall: Aug 21 to Sep 4
Sow outdoors: Mar 23 to Apr 13Plant for fall: Sep 4 to Sep 25
Sow outdoors: Apr 13 to May 4Plant for fall: Aug 14 to Aug 28
Sow outdoors: Apr 13 to Apr 27
Transplant outside: Apr 20 to May 11
Plant for fall: Oct 16 to Nov 20
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Mackey, IN
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Jan 12 – Jan 26 | Mar 9 – Mar 23 | — | — |
| Peppers | Jan 26 – Feb 9 | Apr 20 – May 4 | — | — |
| Eggplant | Jan 26 – Feb 9 | Apr 20 – May 4 | — | — |
| Tomatoes | Feb 9 – Feb 23 | Apr 13 – Apr 27 | — | — |
| Lettuce | Feb 9 – Feb 23 | Mar 16 – Mar 30 | Mar 9 – Apr 13 | Sep 4 – Oct 2 |
| Kale | Feb 9 – Feb 23 | Mar 9 – Mar 23 | Mar 9 – Mar 23 | Aug 21 – Sep 11 |
| Broccoli | Feb 9 – Feb 23 | Mar 23 – Apr 6 | — | Jul 24 – Aug 14 |
| Cabbage | Feb 9 – Feb 23 | Mar 16 – Mar 30 | — | Jul 24 – Aug 14 |
| Cauliflower | Feb 9 – Feb 23 | Mar 23 – Apr 6 | — | Jul 24 – Aug 14 |
| Okra | Feb 23 – Mar 9 | Apr 27 – May 11 | Apr 27 – May 11 | — |
| Basil | Feb 23 – Mar 9 | Apr 13 – Apr 27 | — | — |
| Peas | — | — | Feb 23 – Mar 16 | Aug 7 – Aug 28 |
| Spinach | — | — | Feb 23 – Mar 16 | Sep 4 – Sep 25 |
| Radishes | — | — | Mar 2 – Apr 13 | Sep 18 – Oct 9 |
| Cucumbers | Mar 9 – Mar 16 | Apr 20 – Apr 27 | Apr 13 – Apr 27 | Aug 14 – Aug 28 |
| Zucchini & Summer Squash | Mar 9 – Mar 16 | — | Apr 13 – Apr 27 | Aug 21 – Sep 4 |
| Winter Squash & Pumpkins | Mar 9 – Mar 16 | — | Apr 13 – Apr 27 | — |
| Melons & Watermelon | Mar 9 – Mar 16 | Apr 20 – May 4 | — | — |
| Carrots | — | — | Mar 16 – Apr 13 | Aug 7 – Aug 21 |
| Beets | — | — | Mar 16 – Apr 13 | Aug 21 – Sep 4 |
| Potatoes | — | — | Mar 16 – Apr 6 | — |
| Swiss Chard | — | — | Mar 23 – Apr 20 | Aug 21 – Sep 4 |
| Cilantro | — | — | Mar 23 – Apr 13 | Sep 4 – Sep 25 |
| Green Beans | — | — | Apr 13 – May 4 | Aug 14 – Aug 28 |
| Sweet Corn | — | — | Apr 13 – Apr 27 | — |
| Sweet Potatoes | — | Apr 20 – May 11 | — | — |
| Garlic | — | — | — | Oct 16 – Nov 20 |
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 Stendal, IN weather station, 20 km away (elevation 636 ft (194 m)).
Frost dates near Mackey
- Somerville Apr 6 · Oct 30
- Buckskin Apr 13 · Oct 25
- Elberfeld Apr 4 · Oct 29
- Oakland City Apr 20 · Oct 22
- Francisco Apr 13 · Oct 25
- Lynnville Apr 6 · Oct 30
- Spurgeon Apr 6 · Oct 30
- Fort Branch Apr 13 · Oct 25
- Haubstadt Apr 4 · Oct 29
- Princeton Apr 13 · Oct 25
Frequently asked questions
When is the last frost in Mackey, IN?
The median last spring frost in Mackey, IN is April 6. There is still about a 10% chance of frost after April 23, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Mackey, IN?
The median first fall frost is October 30, with about a 10% chance of frost before October 16.
How long is the growing season in Mackey, IN?
About 207 days between the median last spring frost and first fall frost.
What planting zone is Mackey, IN?
Mackey, IN is in USDA hardiness zone 7a.