Frost dates for 48819Dansville, MI
The average last spring frost in Dansville is April 28 and the average first fall frost is October 17, giving a typical growing season of about 173 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Apr 28
- Average first fall frost
- Oct 17
- Growing season
- 173 days
Safer after May 16 (1-in-10 risk)
Possible by Oct 1 (1-in-10 risk)
Last frost typically in 177 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) | Apr 23 · May 8 · May 27 | Sep 22 · Oct 4 · Oct 18 | 149 days | 100% |
| Frost / freeze (32°F) | Apr 13 · Apr 28 · May 16 | Oct 1 · Oct 17 · Nov 1 | 173 days | 100% |
| Hard freeze (28°F) | Apr 2 · Apr 15 · May 1 | Oct 14 · Oct 30 · Nov 13 | 198 days | 100% |
Planting calendar for Dansville
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 | Mar 28 – Jun 3 |
| Tomatoes | Transplant outdoors | May 14 – Jun 27 |
| Peppers | Start seeds indoors | Mar 28 – Apr 28 |
| Peppers | Transplant outdoors | May 28 – Jun 28 |
| Eggplant | Start seeds indoors | Apr 14 – May 13 |
| Eggplant | Transplant outdoors | May 28 – Jun 28 |
| Cucumbers | Sow outdoors | May 28 – Jul 7 |
| Summer squash | Sow outdoors | May 14 – Jun 28 |
| Winter squash & pumpkins | Sow outdoors | May 28 – Jun 28 |
| Snap beans | Sow outdoors | May 14 – Jul 30 |
| Sweet corn | Sow outdoors | May 14 – Jun 27 |
| Watermelon & cantaloupe | Sow outdoors | May 28 – Jun 28 |
| Okra | Sow outdoors | May 21 – Jun 13 |
| Peas | Sow outdoors (spring) | Mar 28 – May 13 |
| Potatoes | Plant outdoors (spring) | Mar 28 – May 28 |
| Onions | Start seeds indoors (spring) | Feb 14 – Mar 13 |
| Onions | Transplant outdoors (spring) | Apr 14 – May 13 |
| Broccoli | Start seeds indoors (spring) | Mar 10 – Apr 13 |
| Broccoli | Transplant outdoors (spring) | Apr 14 – May 13 |
| Broccoli | Start seeds indoors (fall) | Jun 17 – Jun 27 |
| Broccoli | Transplant outdoors (fall) | Jul 17 – Jul 28 |
| Cabbage | Start seeds indoors (spring) | Feb 28 – Mar 28 |
| Cabbage | Transplant outdoors (spring) | Mar 28 – Apr 28 |
| Cabbage | Start seeds indoors (fall) | Jun 7 – Jul 7 |
| Cabbage | Transplant outdoors (fall) | Jul 7 – Aug 7 |
| Leaf lettuce | Sow outdoors (spring) | Mar 28 – Jun 13 |
| Leaf lettuce | Sow outdoors (fall) | Jul 7 – Aug 23 |
| Spinach | Sow outdoors (spring) | Mar 21 – May 4 |
| Spinach | Sow outdoors (fall) | Jul 24 – Aug 28 |
| Radishes | Sow outdoors (spring) | Mar 28 – May 18 |
| Radishes | Sow outdoors (fall) | Jul 7 – Sep 7 |
| Kale | Sow outdoors (spring) | Apr 14 – May 4 |
| Kale | Sow outdoors (fall) | Jun 30 – Aug 7 |
| Carrots | Sow outdoors (spring) | Apr 28 – Jun 13 |
| Carrots | Sow outdoors (fall) | Jun 7 – Jul 23 |
| Garlic | Plant outdoors (fall) | Oct 7 – Nov 7 |
Where these dates come from
ZIP code 48819 is matched to the NOAA station East Lansing 4 S, MI, 20.8 km away, at 880 ft elevation (52 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| East Lansing 4 S, MI (used) | 880 ft | Apr 28 | Oct 17 |
| Hell, MI | 890 ft | Apr 30 | Oct 14 |
| Eaton Rapids, MI | 870 ft | Apr 30 | Oct 14 |
| Howell Wwtp, MI | 917 ft | May 4 | Oct 7 |
Frost dates near Dansville
- Okemos, MI 48805 · last Apr 28, first Oct 17
- Mason, MI 48854 · last Apr 28, first Oct 17
- Stockbridge, MI 49285 · last Apr 30, first Oct 12
- Leslie, MI 49251 · last May 1, first Oct 14
- Webberville, MI 48892 · last Apr 28, first Oct 17
- Williamston, MI 48895 · last Apr 28, first Oct 17
- Gregory, MI 48137 · last Apr 30, first Oct 12
- Pleasant Lake, MI 49272 · last May 1, first Oct 14
Frequently asked questions
- When is the last frost in Dansville, MI?
- For ZIP code 48819, the average last spring frost (32°F) is April 28, based on NOAA 1991-2020 climate normals for the East Lansing 4 S, MI weather station. There is a 1-in-10 chance of a frost after May 16.
- When is the first frost in Dansville, MI?
- The average first fall frost (32°F) is October 17. There is a 1-in-10 chance of frost by October 1, so tender plants are at risk from that point on.
- How long is the growing season in 48819?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 173 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.