| 2023 Hardiness Zone: | Zone 7b: 5°F to 10°F Zone 7a: 0°F to 5°F | |
| 2012 Hardiness Zone: | Zone 6b: -5°F to 0°F Zone 7a: 0°F to 5°F | |
| 1990 Hardiness Zone: | Zone 6a: -10F to -5F | |
| Average First Frost Date: | Oct. 11 - Oct. 20 | |
| Average Last Frost Date: | May 1 - May 10 | |
| Koppen-Geiger Climate Zone: | Dfa - Humid Continental Hot Summers | |
| Ecoregion: | 64c - Piedmont Uplands | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 15 - 30 days Over 86°F |
Annual Climate Data for ZIP Code 17322 - Felton, PA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 20 | 22 | 30 | 39 | 49 | 58 | 62 | 61 | 54 | 42 | 33 | 25 | 41 |
| Avg Max Temp (°F) | 39 | 43 | 53 | 64 | 74 | 81 | 85 | 84 | 77 | 66 | 54 | 43 | 64 |
| Avg Precip (In.) | 3.51 | 2.74 | 3.7 | 3.54 | 4.38 | 4.06 | 3.88 | 3.45 | 4.15 | 3.32 | 3.53 | 3.33 | 43.58 |