Holton, MI frost dates
Last spring frostMay 8median date
First fall frostOct 11median date
Growing season156 daysfrost-free
Hardiness zone6aZone 6a
How Holton compares
- In 8 years out of 10, the last spring frost in Holton falls between April 24 and May 25, a 31-day window. The first fall frost falls between September 30 and October 25.
- The median last frost is 3 days later than the Michigan median of May 5.
- Its 156-day growing season is longer than 38% of the 878 Michigan places with a regular frost season (state median 162 days).
- The last frost is 9 days later than the zone 6a median of Apr 29. Hardiness zones measure winter cold, not season length, so use these dates rather than a zone 6a chart.
- The weather station records an average of 149 nights a year at or below 32°F.
- Compared with Grand Rapids, MI, 67 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) | April 24 |
| 50% (median) | May 8 |
| 10% (safe for tender plants) | May 25 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | September 30 |
| 50% (median) | October 11 |
| 90% (late) | October 25 |
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 Holton, MI
Holton, MI frost dates — last frost May 8, first frost Oct 11, zone 6a. whenisthelastfrost.com
Crop
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Start indoors: Feb 13 to Feb 27Transplant outside: Apr 10 to Apr 24
Start indoors: Feb 27 to Mar 13Transplant outside: May 22 to Jun 5
Start indoors: Feb 27 to Mar 13Transplant outside: May 22 to Jun 5
Start indoors: Mar 13 to Mar 27Transplant outside: May 15 to May 29
Start indoors: Mar 13 to Mar 27Transplant outside: Apr 17 to May 1Sow outdoors: Apr 10 to May 15Plant for fall: Aug 16 to Sep 13
Start indoors: Mar 13 to Mar 27Transplant outside: Apr 10 to Apr 24Sow outdoors: Apr 10 to Apr 24Plant for fall: Aug 2 to Aug 23
Start indoors: Mar 13 to Mar 27Transplant outside: Apr 24 to May 8Plant for fall: Jul 5 to Jul 26
Start indoors: Mar 13 to Mar 27Transplant outside: Apr 17 to May 1Plant for fall: Jul 5 to Jul 26
Start indoors: Mar 13 to Mar 27Transplant outside: Apr 24 to May 8Plant for fall: Jul 5 to Jul 26
Start indoors: Mar 27 to Apr 10Transplant outside: May 29 to Jun 12Sow outdoors: May 29 to Jun 12
Start indoors: Mar 27 to Apr 10Transplant outside: May 15 to May 29
Sow outdoors: Mar 27 to Apr 17Plant for fall: Jul 19 to Aug 9
Sow outdoors: Mar 27 to Apr 17Plant for fall: Aug 16 to Sep 6
Sow outdoors: Apr 3 to May 15Plant for fall: Aug 30 to Sep 20
Start indoors: Apr 10 to Apr 17Transplant outside: May 22 to May 29Sow outdoors: May 15 to May 29Plant for fall: Jul 26 to Aug 9
Start indoors: Apr 10 to Apr 17Sow outdoors: May 15 to May 29Plant for fall: Aug 2 to Aug 16
Start indoors: Apr 10 to Apr 17Sow outdoors: May 15 to May 29
Start indoors: Apr 10 to Apr 17Transplant outside: May 22 to Jun 5
Sow outdoors: Apr 17 to May 15Plant for fall: Jul 19 to Aug 2
Sow outdoors: Apr 17 to May 15Plant for fall: Aug 2 to Aug 16
Sow outdoors: Apr 17 to May 8
Sow outdoors: Apr 24 to May 22Plant for fall: Aug 2 to Aug 16
Sow outdoors: Apr 24 to May 15Plant for fall: Aug 16 to Sep 6
Sow outdoors: May 15 to Jun 5Plant for fall: Jul 26 to Aug 9
Sow outdoors: May 15 to May 29
Transplant outside: May 22 to Jun 12
Plant for fall: Sep 27 to Nov 1
Start indoorsTransplant outsideSow outdoorsPlant for fallMedian frost dates
When to plant vegetables in Holton, MI
| Crop | Start indoors | Transplant | Sow outdoors | Fall crop |
|---|---|---|---|---|
| Onions | Feb 13 – Feb 27 | Apr 10 – Apr 24 | — | — |
| Peppers | Feb 27 – Mar 13 | May 22 – Jun 5 | — | — |
| Eggplant | Feb 27 – Mar 13 | May 22 – Jun 5 | — | — |
| Tomatoes | Mar 13 – Mar 27 | May 15 – May 29 | — | — |
| Lettuce | Mar 13 – Mar 27 | Apr 17 – May 1 | Apr 10 – May 15 | Aug 16 – Sep 13 |
| Kale | Mar 13 – Mar 27 | Apr 10 – Apr 24 | Apr 10 – Apr 24 | Aug 2 – Aug 23 |
| Broccoli | Mar 13 – Mar 27 | Apr 24 – May 8 | — | Jul 5 – Jul 26 |
| Cabbage | Mar 13 – Mar 27 | Apr 17 – May 1 | — | Jul 5 – Jul 26 |
| Cauliflower | Mar 13 – Mar 27 | Apr 24 – May 8 | — | Jul 5 – Jul 26 |
| Okra | Mar 27 – Apr 10 | May 29 – Jun 12 | May 29 – Jun 12 | — |
| Basil | Mar 27 – Apr 10 | May 15 – May 29 | — | — |
| Peas | — | — | Mar 27 – Apr 17 | Jul 19 – Aug 9 |
| Spinach | — | — | Mar 27 – Apr 17 | Aug 16 – Sep 6 |
| Radishes | — | — | Apr 3 – May 15 | Aug 30 – Sep 20 |
| Cucumbers | Apr 10 – Apr 17 | May 22 – May 29 | May 15 – May 29 | Jul 26 – Aug 9 |
| Zucchini & Summer Squash | Apr 10 – Apr 17 | — | May 15 – May 29 | Aug 2 – Aug 16 |
| Winter Squash & Pumpkins | Apr 10 – Apr 17 | — | May 15 – May 29 | — |
| Melons & Watermelon | Apr 10 – Apr 17 | May 22 – Jun 5 | — | — |
| Carrots | — | — | Apr 17 – May 15 | Jul 19 – Aug 2 |
| Beets | — | — | Apr 17 – May 15 | Aug 2 – Aug 16 |
| Potatoes | — | — | Apr 17 – May 8 | — |
| Swiss Chard | — | — | Apr 24 – May 22 | Aug 2 – Aug 16 |
| Cilantro | — | — | Apr 24 – May 15 | Aug 16 – Sep 6 |
| Green Beans | — | — | May 15 – Jun 5 | Jul 26 – Aug 9 |
| Sweet Corn | — | — | May 15 – May 29 | — |
| Sweet Potatoes | — | May 22 – Jun 12 | — | — |
| Garlic | — | — | — | Sep 27 – Nov 1 |
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 Fremont 4 Wsw, MI weather station, 10 km away (elevation 801 ft (244 m)).
Frost dates near Holton
- Twin Lake May 8 · Oct 11
- Whitehall May 19 · Oct 4
- Rothbury May 19 · Oct 4
- Montague May 19 · Oct 4
- Hesperia May 17 · Oct 1
- New Era May 19 · Oct 4
- Fremont May 8 · Oct 11
- Sylvan Beach May 19 · Oct 4
- Muskegon Apr 30 · Oct 19
- Shelby May 12 · Oct 10
Frequently asked questions
When is the last frost in Holton, MI?
The median last spring frost in Holton, MI is May 8. There is still about a 10% chance of frost after May 25, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Holton, MI?
The median first fall frost is October 11, with about a 10% chance of frost before September 30.
How long is the growing season in Holton, MI?
About 156 days between the median last spring frost and first fall frost.
What planting zone is Holton, MI?
Holton, MI is in USDA hardiness zone 6a.