| 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. 11 - Oct. 20 |
| Average Last Frost Date: | May 1 - May 10 |
| Koppen-Geiger Climate Zone: | Dfa - Humid Continental Hot Summers |
| Ecoregion: | 70f - Ohio/Kentucky Carboniferous Plateau |
| Heat Zone Days: | 1 - 7 days Over 86°F |
Annual Climate Data for ZIP Code 43138 - Logan, OH | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 18 | 20 | 28 | 37 | 47 | 57 | 61 | 59 | 52 | 39 | 31 | 23 | 39 |
| Avg Max Temp (°F) | 36 | 41 | 52 | 63 | 73 | 81 | 84 | 83 | 77 | 66 | 53 | 41 | 62 |
| Avg Precip (In.) | 2.74 | 2.51 | 3.23 | 3.42 | 4.23 | 3.92 | 4.17 | 4.02 | 2.9 | 2.55 | 3.04 | 3.02 | 39.75 |