| 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 Zone 5b: -15°F to -10°F |
| 1990 Hardiness Zone: | Zone 1b: -15F to -10F |
| Average First Frost Date: | Oct. 21 - Oct. 31 |
| Average Last Frost Date: | May 1 - May 10 |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year |
| Ecoregion: | 70c - Pittsburgh Low Plateau |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 44651 - Mechanicstown, OH | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 17 | 20 | 28 | 36 | 47 | 56 | 60 | 58 | 51 | 40 | 32 | 23 | 39 |
| Avg Max Temp (°F) | 35 | 39 | 50 | 61 | 71 | 80 | 83 | 82 | 75 | 64 | 51 | 40 | 61 |
| Avg Precip (In.) | 2.52 | 2.31 | 3.22 | 3.22 | 3.9 | 4.04 | 4.27 | 3.56 | 3.31 | 2.5 | 3.15 | 2.94 | 38.94 |