| After Date in Spring | |||||||
| Temperature | 10% | 33% | 50% | 67% | 90% | ||
| 32˚F or below | 10-May | 30-Apr | 25-Apr | 20-Apr | 10-Apr | ||
| 24˚F or below | 9-Apr | 1-Apr | 27-Mar | 22-Mar | 14-Mar | ||
| 16˚F or below | 13-Mar | 3-Mar | 25-Feb | 19-Feb | 9-Feb | ||
| Before Date in Fall | |||||||
| Temperature | 10% | 33% | 50% | 67% | 90% | ||
| 32˚F or below | 2-Oct | 11-Oct | 16-Oct | 21-Oct | 30-Oct | ||
| 24˚F or below | 1-Nov | 9-Nov | 14-Nov | 19-Nov | 27-Nov | ||
| 16˚F or below | 28-Nov | 6-Dec | 10-Dec | 14-Dec | 22-Dec | ||
| Data from: WJ Moyer, ESSA-Weather, UMD, 1970 | |||||||
| How to read this chart | |||||||
| There is a 10% chance you will see a freezing temperature after May 10 (1 in 10 years), and a 90% chance of seeing a freeze after April 10 (almost every year) | |||||||
| Similarly, you have a 10% chance of seeing freezing weather before Oct 2 (1 out of 10 years), and you can expect to see freezing temperatures by Oct 30 (9 out of 10 years). | |||||||
| Please Remember, These data are from the Research and Education Center. Your dates may vary due to other factors, such as proximity to water and elevation. | |||||||