| 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. 1 - Oct. 10 | |
| Average Last Frost Date: | May 21 - May 31 | |
| Koppen-Geiger Climate Zone: | Dfa - Humid Continental Hot Summers | |
| Ecoregion: | 62a - Pocono High Plateau | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 18624 - Lake Harmony, PA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 12 | 13 | 21 | 32 | 42 | 51 | 55 | 54 | 46 | 35 | 27 | 18 | 34 |
| Avg Max Temp (°F) | 31 | 34 | 43 | 55 | 66 | 74 | 78 | 77 | 69 | 58 | 46 | 35 | 55 |
| Avg Precip (In.) | 3.91 | 3.01 | 3.89 | 4.07 | 5.07 | 4.9 | 4.48 | 4.26 | 4.96 | 4.06 | 4.1 | 3.68 | 50.4 |