| 2023 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 6b: -5°F to 0°F Zone 7a: 0°F to 5°F |
| 2012 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 6b: -5°F to 0°F Zone 5b: -15°F to -10°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: | 83a - Erie Lake Plain |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 44030 - Conneaut, OH | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 18 | 19 | 27 | 37 | 47 | 57 | 61 | 60 | 54 | 43 | 35 | 25 | 40 |
| Avg Max Temp (°F) | 34 | 35 | 45 | 56 | 67 | 76 | 80 | 79 | 73 | 62 | 50 | 39 | 58 |
| Avg Precip (In.) | 2.34 | 2 | 2.66 | 3.38 | 3.12 | 4.29 | 3.73 | 4.07 | 4.28 | 3.74 | 3.75 | 3.25 | 40.61 |