| 2023 Hardiness Zone: | Zone 6b: -5°F to 0°F | |
| 2012 Hardiness Zone: | Zone 6a: -10°F to -5°F Zone 6b: -5°F to 0°F | |
| 1990 Hardiness Zone: | Zone 6a: -10F to -5F | |
| Average First Frost Date: | Oct. 1 - Oct. 10 | |
| Average Last Frost Date: | May 11 - May 20 | |
| Koppen-Geiger Climate Zone: | Dfa - Humid Continental Hot Summers | |
| Ecoregion: | 69a - Forested Hills and Mountains | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 1 - 7 days Over 86°F |
Annual Climate Data for ZIP Code 15536 - Crystal Spring, PA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 18 | 20 | 28 | 37 | 46 | 55 | 59 | 58 | 51 | 39 | 31 | 23 | 39 |
| Avg Max Temp (°F) | 37 | 40 | 49 | 61 | 72 | 80 | 84 | 82 | 75 | 64 | 52 | 41 | 61 |
| Avg Precip (In.) | 2.61 | 2.37 | 3.24 | 3.38 | 3.95 | 3.85 | 3.8 | 3.23 | 3.37 | 3.1 | 3.24 | 2.72 | 38.87 |