| 2023 Hardiness Zone: | 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 6b: -5F to 0F | |
| Average First Frost Date: | Oct. 21 - Oct. 31 | |
| Average Last Frost Date: | Apr. 21 - Apr. 30 | |
| Koppen-Geiger Climate Zone: | Dfa - Humid Continental Hot Summers | |
| Ecoregion: | 64c - Piedmont Uplands | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 8 - 14 days Over 86°F |
Annual Climate Data for ZIP Code 19311 - Avondale, PA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 22 | 23 | 31 | 40 | 49 | 59 | 64 | 62 | 55 | 43 | 35 | 27 | 42 |
| Avg Max Temp (°F) | 39 | 41 | 51 | 62 | 71 | 80 | 85 | 83 | 76 | 65 | 54 | 43 | 62 |
| Avg Precip (In.) | 3.77 | 2.94 | 3.98 | 3.77 | 4.45 | 4 | 4.43 | 3.9 | 4.58 | 3.41 | 3.69 | 3.63 | 46.54 |