| 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 11 - May 20 |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year |
| Ecoregion: | 61b - Mosquito Creek/Pymatuning Lowlands |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 16316 - Conneaut Lake, PA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 15 | 16 | 24 | 34 | 44 | 53 | 57 | 56 | 49 | 39 | 31 | 22 | 37 |
| Avg Max Temp (°F) | 32 | 36 | 45 | 57 | 69 | 77 | 81 | 80 | 73 | 61 | 48 | 37 | 58 |
| Avg Precip (In.) | 2.63 | 2.37 | 3.11 | 3.45 | 3.74 | 4.53 | 4.28 | 4.12 | 4.27 | 3.31 | 3.75 | 3.4 | 42.95 |