| 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 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: | 67b - Northern Shale Valleys | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 17821 - Danville, PA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 16 | 18 | 26 | 35 | 45 | 55 | 59 | 57 | 50 | 38 | 31 | 23 | 38 |
| Avg Max Temp (°F) | 34 | 36 | 46 | 59 | 70 | 78 | 82 | 80 | 73 | 62 | 50 | 39 | 59 |
| Avg Precip (In.) | 3.04 | 2.47 | 3.26 | 3.7 | 4.06 | 4.63 | 3.85 | 3.76 | 4.22 | 3.32 | 3.44 | 3.02 | 42.77 |