| 2023 Hardiness Zone: | Zone 6b: -5°F to 0°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. 11 - Oct. 20 |
| Average Last Frost Date: | May 11 - May 20 |
| Koppen-Geiger Climate Zone: | Dfa - Humid Continental Hot Summers |
| Ecoregion: | 69a - Forested Hills and Mountains |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 16674 - Robertsdale, PA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 19 | 20 | 28 | 37 | 46 | 55 | 59 | 58 | 51 | 40 | 32 | 23 | 39 |
| Avg Max Temp (°F) | 35 | 38 | 48 | 60 | 70 | 78 | 82 | 80 | 73 | 63 | 50 | 39 | 60 |
| Avg Precip (In.) | 3.05 | 2.71 | 3.4 | 3.7 | 4.23 | 4.34 | 4.13 | 3.37 | 3.85 | 3.38 | 3.53 | 3.05 | 42.76 |