US Frost Chart
Here you will find the United States frost dates listed by gardening zone.
Don't know your zone? Use the Zone Lookup Tool below.
| USDA Zone | Last Frost Date | First Frost Date | Minimum Number of frost-free days |
| 1 | June 15 | July 15 | 30 or less |
| 2 | May 15 | August 15 | 90 |
| 3 | May 15 | September 15 | 120 |
| 4 | May 15 | September 15 | 120 |
| 5 | April 15 | October 15 | 180 |
| 6 | April 15 | October 15 | 180 |
| 7 | April 15 | October 15 | 180 |
| 8 | March 15 | November 15 | 240 |
| 9 | February 15 | December 15 | 300 |
| 10 | January 31 or earlier | December 15 | 315 |
| 11 | Zone 11 has no frost | 365 | |
Zone Lookup Tool
Don't know your zone? Use the US Zone Lookup Tool below.