| 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 6b: -5°F to 0°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 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 17737 - Hughesville, PA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 16 | 17 | 26 | 35 | 45 | 55 | 59 | 58 | 50 | 39 | 31 | 22 | 38 |
| Avg Max Temp (°F) | 33 | 36 | 46 | 59 | 70 | 78 | 82 | 80 | 72 | 61 | 49 | 37 | 59 |
| Avg Precip (In.) | 2.86 | 2.54 | 3.2 | 3.53 | 3.85 | 4.67 | 4.05 | 3.45 | 4.21 | 3.24 | 3.56 | 2.99 | 42.14 |