| 2023 Hardiness Zone: | Zone 6b: -5°F to 0°F |
| 2012 Hardiness Zone: | Zone 6b: -5°F to 0°F |
| 1990 Hardiness Zone: | Zone 6a: -10F to -5F |
| Average First Frost Date: | Oct. 21 - Oct. 31 |
| Average Last Frost Date: | May 1 - May 10 |
| Koppen-Geiger Climate Zone: | Dfb - Humid Continental Mild Summer, Wet All Year |
| Ecoregion: | 67a - Northern Limestone/Dolomite Valleys |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 16802 - University Park, PA | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 18 | 19 | 27 | 37 | 47 | 56 | 61 | 59 | 52 | 40 | 32 | 24 | 39 |
| Avg Max Temp (°F) | 33 | 36 | 46 | 58 | 69 | 77 | 81 | 79 | 71 | 60 | 48 | 37 | 58 |
| Avg Precip (In.) | 2.9 | 2.61 | 3.39 | 3.18 | 3.74 | 4.33 | 3.66 | 3.39 | 3.68 | 2.96 | 3.38 | 2.84 | 40.05 |