| 2023 Hardiness Zone: | Zone 6b: -5°F to 0°F Zone 7a: 0°F to 5°F |
| 2012 Hardiness Zone: | Zone 6b: -5°F to 0°F |
| 1990 Hardiness Zone: | Zone 6a: -10F to -5F |
| Average First Frost Date: | Nov. 1 - Nov. 10 |
| Average Last Frost Date: | May 1 - May 10 |
| 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 16502 - Erie, PA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 20 | 20 | 28 | 38 | 49 | 58 | 63 | 62 | 56 | 45 | 36 | 26 | 42 |
| Avg Max Temp (°F) | 33 | 35 | 45 | 55 | 67 | 76 | 80 | 79 | 72 | 61 | 49 | 39 | 58 |
| Avg Precip (In.) | 2.54 | 2.28 | 3.09 | 3.39 | 3.37 | 4.28 | 3.4 | 4.2 | 4.73 | 3.97 | 3.99 | 3.66 | 42.89 |