| 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 11 - May 20 |
| 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 16875 - Spring Mills, PA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 17 | 18 | 26 | 36 | 46 | 54 | 59 | 57 | 50 | 39 | 31 | 22 | 38 |
| Avg Max Temp (°F) | 33 | 36 | 46 | 59 | 70 | 77 | 81 | 79 | 72 | 61 | 48 | 37 | 58 |
| Avg Precip (In.) | 3.07 | 2.96 | 3.56 | 3.54 | 4.17 | 4.71 | 4.25 | 3.64 | 4.06 | 3.36 | 3.71 | 3.09 | 44.14 |