| 2023 Hardiness Zone: | Zone 7a: 0°F to 5°F | |
| 2012 Hardiness Zone: | Zone 6b: -5°F to 0°F Zone 7a: 0°F to 5°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: | 64d - Piedmont Limestone/Dolomite Lowlands | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | 1 - 7 days Over 86°F |
Annual Climate Data for ZIP Code 17517 - Denver, PA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 20 | 22 | 30 | 39 | 49 | 58 | 63 | 61 | 54 | 42 | 34 | 25 | 41 |
| Avg Max Temp (°F) | 37 | 40 | 50 | 62 | 72 | 79 | 84 | 82 | 75 | 64 | 52 | 41 | 61 |
| Avg Precip (In.) | 3.64 | 2.7 | 3.59 | 3.65 | 4.51 | 4.42 | 4.39 | 3.68 | 4.28 | 3.44 | 3.73 | 3.41 | 45.45 |