| 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 6a: -10F to -5F |
| Average First Frost Date: | Oct. 11 - Oct. 20 |
| Average Last Frost Date: | May 1 - May 10 |
| Koppen-Geiger Climate Zone: | Dfa - Humid Continental Hot Summers |
| Ecoregion: | 67a - Northern Limestone/Dolomite Valleys |
| Heat Zone Days: | 1 - 7 days Over 86°F |
Annual Climate Data for ZIP Code 17751 - Mill Hall, PA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 18 | 19 | 27 | 37 | 46 | 55 | 60 | 59 | 51 | 40 | 32 | 24 | 39 |
| Avg Max Temp (°F) | 35 | 39 | 49 | 62 | 73 | 81 | 84 | 83 | 75 | 64 | 51 | 40 | 61 |
| Avg Precip (In.) | 2.72 | 2.65 | 3.35 | 3.23 | 3.69 | 4.62 | 4.02 | 3.51 | 3.86 | 3.09 | 3.43 | 2.79 | 40.97 |