| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°F |
| 2012 Hardiness Zone: | Zone 5b: -15°F to -10°F |
| 1990 Hardiness Zone: | Zone 1b: -15F to -10F |
| Average First Frost Date: | Oct. 11 - Oct. 20 |
| Average Last Frost Date: | May 21 - May 31 |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year |
| Ecoregion: | 69b - Uplands and Valleys of Mixed Land Use |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 16651 - Houtzdale, PA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 14 | 15 | 23 | 32 | 42 | 50 | 55 | 54 | 47 | 36 | 29 | 19 | 35 |
| Avg Max Temp (°F) | 32 | 36 | 45 | 58 | 69 | 77 | 80 | 79 | 71 | 60 | 48 | 37 | 58 |
| Avg Precip (In.) | 2.01 | 2.12 | 3.03 | 3.06 | 4.03 | 4.86 | 4.29 | 3.83 | 3.83 | 2.88 | 2.98 | 2.13 | 39.06 |