Calculator Reference
Frost Probability
Frost dates are statistical averages. A "last frost date" usually means there is a 50% chance of frost after this date. If you are planting tender crops like tomatoes, you should wait until the 10% probability date.
Data Points
| Crop Hardiness | Planting Time |
|---|---|
| Very Hardy (Onions, Spinach) | 4-6 weeks before last frost |
| Frost Tolerant (Peas, Carrots) | 2-3 weeks before last frost |
| Tender (Tomatoes, Beans) | 1-2 weeks AFTER last frost |
| Very Tender (Cucumbers, Melons) | 3-4 weeks AFTER last frost |