Frost dates for 48759Sebewaing, MI
The average last spring frost in Sebewaing is May 7 and the average first fall frost is October 10, giving a typical growing season of about 152 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- May 7
- Average first fall frost
- Oct 10
- Growing season
- 152 days
Safer after May 22 (1-in-10 risk)
Possible by Sep 26 (1-in-10 risk)
Last frost typically in 186 days
Frost risk by date
NOAA reports frost dates as probabilities. The middle date is the average (a 50% chance). For spring, the 10% date is a safer planting date: frost after it happens in about 1 year in 10. Light frost (36°F) can damage tender plants; a hard freeze (28°F) kills most annuals.
| Temperature | Last spring: 90% / 50% / 10% chance | First fall: 10% / 50% / 90% chance | Growing season (50%) | Years with at least one |
|---|---|---|---|---|
| Light frost (36°F) | May 5 · May 19 · May 31 | Sep 16 · Sep 30 · Oct 12 | 131 days | 100% |
| Frost / freeze (32°F) | Apr 25 · May 7 · May 22 | Sep 26 · Oct 10 · Oct 25 | 152 days | 100% |
| Hard freeze (28°F) | Apr 13 · Apr 28 · May 14 | Oct 6 · Oct 24 · Nov 6 | 176 days | 100% |
Planting calendar for Sebewaing
Planting windows from the University of Maryland Extension calendar, shifted to your average frost dates. Use them as a starting point and adjust for seed packet instructions and local conditions.
| Crop | Task | Window |
|---|---|---|
| Tomatoes | Start seeds indoors | Apr 6 – Jun 12 |
| Tomatoes | Transplant outdoors | May 23 – Jun 20 |
| Peppers | Start seeds indoors | Apr 6 – May 7 |
| Peppers | Transplant outdoors | Jun 6 – Jul 7 |
| Eggplant | Start seeds indoors | Apr 23 – May 22 |
| Eggplant | Transplant outdoors | Jun 6 – Jul 7 |
| Cucumbers | Sow outdoors | Jun 6 – Jun 30 |
| Summer squash | Sow outdoors | May 23 – Jul 7 |
| Winter squash & pumpkins | Sow outdoors | Jun 6 – Jul 7 |
| Snap beans | Sow outdoors | May 23 – Jul 23 |
| Sweet corn | Sow outdoors | May 23 – Jun 20 |
| Watermelon & cantaloupe | Sow outdoors | Jun 6 – Jul 7 |
| Okra | Sow outdoors | May 30 – Jun 22 |
| Peas | Sow outdoors (spring) | Apr 6 – May 22 |
| Potatoes | Plant outdoors (spring) | Apr 6 – Jun 6 |
| Onions | Start seeds indoors (spring) | Feb 23 – Mar 22 |
| Onions | Transplant outdoors (spring) | Apr 23 – May 22 |
| Broccoli | Start seeds indoors (spring) | Mar 19 – Apr 22 |
| Broccoli | Transplant outdoors (spring) | Apr 23 – May 22 |
| Broccoli | Start seeds indoors (fall) | Jun 10 – Jun 20 |
| Broccoli | Transplant outdoors (fall) | Jul 10 – Jul 21 |
| Cabbage | Start seeds indoors (spring) | Mar 9 – Apr 6 |
| Cabbage | Transplant outdoors (spring) | Apr 6 – May 7 |
| Cabbage | Start seeds indoors (fall) | May 31 – Jun 30 |
| Cabbage | Transplant outdoors (fall) | Jun 30 – Jul 31 |
| Leaf lettuce | Sow outdoors (spring) | Apr 6 – Jun 22 |
| Leaf lettuce | Sow outdoors (fall) | Jun 30 – Aug 16 |
| Spinach | Sow outdoors (spring) | Mar 30 – May 13 |
| Spinach | Sow outdoors (fall) | Jul 17 – Aug 21 |
| Radishes | Sow outdoors (spring) | Apr 6 – May 27 |
| Radishes | Sow outdoors (fall) | Jun 30 – Aug 31 |
| Kale | Sow outdoors (spring) | Apr 23 – May 13 |
| Kale | Sow outdoors (fall) | Jun 23 – Jul 31 |
| Carrots | Sow outdoors (spring) | May 7 – Jun 22 |
| Carrots | Sow outdoors (fall) | May 31 – Jul 16 |
| Garlic | Plant outdoors (fall) | Sep 30 – Oct 31 |
Where these dates come from
ZIP code 48759 is matched to the NOAA station Cass City 1 Ssw, MI, 26 km away, at 698 ft elevation (98 ft higher than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Cass City 1 Ssw, MI (used) | 698 ft | May 7 | Oct 10 |
| Caro Wwtp, MI | 690 ft | May 7 | Oct 9 |
| Filion 5Nnw, MI | 635 ft | May 8 | Oct 17 |
| Essexville, MI | 588 ft | Apr 27 | Oct 20 |
Frost dates near Sebewaing
- Unionville, MI 48767 · last May 7, first Oct 9
- Bay Port, MI 48720 · last May 8, first Oct 17
- Gagetown, MI 48735 · last May 7, first Oct 10
- Pigeon, MI 48755 · last May 8, first Oct 17
- Owendale, MI 48754 · last May 7, first Oct 10
- Akron, MI 48701 · last May 7, first Oct 9
- Elkton, MI 48731 · last May 8, first Oct 17
- Fairgrove, MI 48733 · last May 7, first Oct 9
Frequently asked questions
- When is the last frost in Sebewaing, MI?
- For ZIP code 48759, the average last spring frost (32°F) is May 7, based on NOAA 1991-2020 climate normals for the Cass City 1 Ssw, MI weather station. There is a 1-in-10 chance of a frost after May 22.
- When is the first frost in Sebewaing, MI?
- The average first fall frost (32°F) is October 10. There is a 1-in-10 chance of frost by September 26, so tender plants are at risk from that point on.
- How long is the growing season in 48759?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 152 days long.
- Are these frost dates a forecast?
- No. They are 30-year averages and probabilities from NOAA weather station records. Use them to plan, then watch your local forecast before planting tender crops or leaving them uncovered.