| 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 | |
| 1990 Hardiness Zone: | Zone 1b: -15F to -10F | |
| 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: | 83c - Ontario Lowlands | |
| Current Drought Status: | Exceptional Drought | |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 13165 - Waterloo, NY | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 16 | 17 | 25 | 36 | 47 | 56 | 61 | 59 | 52 | 41 | 33 | 22 | 39 |
| Avg Max Temp (°F) | 31 | 33 | 42 | 54 | 67 | 76 | 81 | 79 | 71 | 59 | 47 | 36 | 57 |
| Avg Precip (In.) | 1.86 | 1.57 | 2.19 | 2.86 | 3.05 | 3.73 | 3.33 | 3.34 | 3.76 | 2.99 | 3.04 | 2.38 | 34.11 |