Frost dates for Clarksburg, MI
When the last spring frost and first fall frost usually come, and when to plant, from 30 years of NOAA weather records.
Last spring frost
June 5
typical year
Safe to plant
June 24
frost is over in 9 of 10 years
First fall frost
September 10
typical year
Growing season
96 days
frost-free, typical year
Frost watch this week
Tonight's and the next six nights' lows from the National Weather Service forecast for the station's location. Frost: 32°F or colder. Possible frost: 33–36°F, mostly in low spots on clear, still nights.
When to plant
Counted from this page's frost dates. Warm-season crops wait for the safe-to-plant date.
| Crop | Start indoors | Plant outside | Fall planting |
|---|---|---|---|
| Cool-season crops | |||
| Peas | – | May 8 – 22 | – |
| Spinach | – | Apr 24 – May 15 | Jul 16 – 30 |
| Lettuce | – | May 8 – 29 | Jul 16 – 30 |
| Radishes | – | May 8 – Jun 19 | Jul 30 – Aug 13 |
| Onions | – | May 8 – 22 | – |
| Potatoes | Season usually too short. Try a quick variety or row covers. | ||
| Carrots | – | May 15 – Jun 5 | Jun 18 – Jul 2 |
| Beets | – | May 8 – 22 | Jul 2 – 16 |
| Kale | Mar 27 – Apr 10 | May 8 – 22 | Jul 2 – 16 |
| Broccoli | Mar 27 – Apr 10 | May 22 – Jun 5 | Jul 2 – 16 |
| Cabbage | Mar 13 – 27 | May 8 – 22 | Jul 2 – 16 |
| Garlic | – | – | Jul 30 – Aug 20 |
| Warm-season crops | |||
| Tomatoes | Apr 29 – May 13 | Jun 24 – Jul 8 | – |
| Peppers | Season usually too short. Try a quick variety or row covers. | ||
| Cucumbers | – | Jun 24 – Jul 15 | – |
| Zucchini | – | Jun 24 – Jul 22 | – |
| Pumpkins | Season usually too short. Try a quick variety or row covers. | ||
| Green beans | – | Jun 24 – Jul 2 | – |
| Sweet corn | Season usually too short. Try a quick variety or row covers. | ||
| Basil | May 20 – Jun 3 | Jul 1 – 8 | – |
Onions: from sets. Green beans: until 10 weeks before the first fall frost. Garlic: harvest next summer.
The year at a glance
Start indoors Plant outside Fall planting
The chance of frost, by date
| 1 year in 10 | Half of years | 9 years in 10 | |
|---|---|---|---|
| Spring frost after | June 24 | June 5 | May 23 |
| Fall frost before | August 23 | September 10 | October 1 |
Frost here means 32°F or colder. Read across: in 1 year in 10, spring frost carries on past the first date, which is why that date is the safe-to-plant date.
Hard freeze (28°F)
A hard freeze kills most garden plants, even hardy ones. The last one in spring usually comes around May 23 (June 6 in a late year), and the first one in fall around September 28.
Where these dates come from
NOAA weather station CLARKSBURG, MI US (USC00201435), 1991–2020 climate normals. It's the nearest station for 3 zip codes, all within 22 miles:
49814, 49815, 49879
Planting dates follow common university extension advice; your local extension service can fine-tune them for your soil and microclimate.