| 2023 Hardiness Zone: | Zone 6b: -5°F to 0°F Zone 7a: 0°F to 5°F | |
| 2012 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 6b: -5°F to 0°F | |
| 1990 Hardiness Zone: | Zone 6a: -10F to -5F | |
| 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: | 67b - Northern Shale Valleys | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 19526 - Hamburg, PA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 16 | 18 | 27 | 36 | 46 | 55 | 59 | 57 | 50 | 38 | 30 | 22 | 38 |
| Avg Max Temp (°F) | 37 | 39 | 49 | 61 | 71 | 80 | 84 | 83 | 75 | 65 | 52 | 41 | 62 |
| Avg Precip (In.) | 3.95 | 2.9 | 3.8 | 3.78 | 4.93 | 4.93 | 4.58 | 4.08 | 4.59 | 3.79 | 4.15 | 3.75 | 49.23 |