| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 6b: -5°F to 0°F |
| 2012 Hardiness Zone: | Zone 6a: -10°F to -5°F |
| 1990 Hardiness Zone: | Zone 1b: -15F to -10F |
| 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: | 70c - Pittsburgh Low Plateau |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 16053 - Renfrew, PA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 17 | 18 | 26 | 35 | 45 | 54 | 58 | 57 | 50 | 39 | 31 | 22 | 38 |
| Avg Max Temp (°F) | 35 | 38 | 48 | 60 | 70 | 79 | 82 | 81 | 74 | 63 | 50 | 39 | 60 |
| Avg Precip (In.) | 2.68 | 2.31 | 3.13 | 3.24 | 4.04 | 4.2 | 4.09 | 3.57 | 3.52 | 2.61 | 3.24 | 3.02 | 39.63 |