Frost dates for 48475Ubly, MI
The average last spring frost in Ubly is May 5 and the average first fall frost is October 19, giving a typical growing season of about 163 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- May 5
- Average first fall frost
- Oct 19
- Growing season
- 163 days
Safer after May 20 (1-in-10 risk)
Possible by Oct 2 (1-in-10 risk)
Last frost typically in 184 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 3 · May 17 · May 31 | Sep 23 · Oct 6 · Oct 22 | 140 days | 100% |
| Frost / freeze (32°F) | Apr 22 · May 5 · May 20 | Oct 2 · Oct 19 · Nov 3 | 163 days | 100% |
| Hard freeze (28°F) | Apr 8 · Apr 24 · May 9 | Oct 15 · Nov 1 · Nov 16 | 190 days | 100% |
Planting calendar for Ubly
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 4 – Jun 10 |
| Tomatoes | Transplant outdoors | May 21 – Jun 29 |
| Peppers | Start seeds indoors | Apr 4 – May 5 |
| Peppers | Transplant outdoors | Jun 4 – Jul 5 |
| Eggplant | Start seeds indoors | Apr 21 – May 20 |
| Eggplant | Transplant outdoors | Jun 4 – Jul 5 |
| Cucumbers | Sow outdoors | Jun 4 – Jul 9 |
| Summer squash | Sow outdoors | May 21 – Jul 5 |
| Winter squash & pumpkins | Sow outdoors | Jun 4 – Jul 5 |
| Snap beans | Sow outdoors | May 21 – Aug 1 |
| Sweet corn | Sow outdoors | May 21 – Jun 29 |
| Watermelon & cantaloupe | Sow outdoors | Jun 4 – Jul 5 |
| Okra | Sow outdoors | May 28 – Jun 20 |
| Peas | Sow outdoors (spring) | Apr 4 – May 20 |
| Potatoes | Plant outdoors (spring) | Apr 4 – Jun 4 |
| Onions | Start seeds indoors (spring) | Feb 21 – Mar 20 |
| Onions | Transplant outdoors (spring) | Apr 21 – May 20 |
| Broccoli | Start seeds indoors (spring) | Mar 17 – Apr 20 |
| Broccoli | Transplant outdoors (spring) | Apr 21 – May 20 |
| Broccoli | Start seeds indoors (fall) | Jun 19 – Jun 29 |
| Broccoli | Transplant outdoors (fall) | Jul 19 – Jul 30 |
| Cabbage | Start seeds indoors (spring) | Mar 7 – Apr 4 |
| Cabbage | Transplant outdoors (spring) | Apr 4 – May 5 |
| Cabbage | Start seeds indoors (fall) | Jun 9 – Jul 9 |
| Cabbage | Transplant outdoors (fall) | Jul 9 – Aug 9 |
| Leaf lettuce | Sow outdoors (spring) | Apr 4 – Jun 20 |
| Leaf lettuce | Sow outdoors (fall) | Jul 9 – Aug 25 |
| Spinach | Sow outdoors (spring) | Mar 28 – May 11 |
| Spinach | Sow outdoors (fall) | Jul 26 – Aug 30 |
| Radishes | Sow outdoors (spring) | Apr 4 – May 25 |
| Radishes | Sow outdoors (fall) | Jul 9 – Sep 9 |
| Kale | Sow outdoors (spring) | Apr 21 – May 11 |
| Kale | Sow outdoors (fall) | Jul 2 – Aug 9 |
| Carrots | Sow outdoors (spring) | May 5 – Jun 20 |
| Carrots | Sow outdoors (fall) | Jun 9 – Jul 25 |
| Garlic | Plant outdoors (fall) | Oct 9 – Nov 9 |
Where these dates come from
ZIP code 48475 is matched to the NOAA station Bad Axe, MI, 13.4 km away, at 715 ft elevation (53 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Bad Axe, MI (used) | 715 ft | May 5 | Oct 19 |
| Cass City 1 Ssw, MI | 698 ft | May 7 | Oct 10 |
| Filion 5Nnw, MI | 635 ft | May 8 | Oct 17 |
| Harbor Beach 1 Sse, MI | 595 ft | May 2 | Oct 24 |
Frost dates near Ubly
- Bad Axe, MI 48413 · last May 5, first Oct 19
- Argyle, MI 48410 · last May 2, first Oct 16
- Ruth, MI 48470 · last May 2, first Oct 24
- Minden City, MI 48456 · last May 2, first Oct 24
- Cass City, MI 48726 · last May 7, first Oct 10
- Owendale, MI 48754 · last May 7, first Oct 10
- Palms, MI 48465 · last May 2, first Oct 16
- Snover, MI 48472 · last May 2, first Oct 16
Frequently asked questions
- When is the last frost in Ubly, MI?
- For ZIP code 48475, the average last spring frost (32°F) is May 5, based on NOAA 1991-2020 climate normals for the Bad Axe, MI weather station. There is a 1-in-10 chance of a frost after May 20.
- When is the first frost in Ubly, MI?
- The average first fall frost (32°F) is October 19. There is a 1-in-10 chance of frost by October 2, so tender plants are at risk from that point on.
- How long is the growing season in 48475?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 163 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.