| 2023 Hardiness Zone: | Zone 5b: -15°F to -10°F |
| 2012 Hardiness Zone: | Zone 5b: -15°F to -10°F |
| 1990 Hardiness Zone: | Zone 5a: -20F to -15F |
| 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: | 60b - Northeastern Uplands |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 18461 - Starlight, PA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 12 | 13 | 22 | 32 | 42 | 51 | 56 | 55 | 47 | 36 | 29 | 18 | 34 |
| Avg Max Temp (°F) | 31 | 34 | 43 | 56 | 68 | 75 | 80 | 78 | 70 | 59 | 46 | 35 | 56 |
| Avg Precip (In.) | 3.4 | 2.69 | 3.6 | 3.85 | 4.23 | 4.28 | 3.93 | 3.87 | 4.06 | 3.7 | 4.09 | 3.56 | 45.27 |