| 2023 Hardiness Zone: | Zone 5a: -20°F to -15°F Zone 5b: -15°F to -10°F |
| 2012 Hardiness Zone: | Zone 5a: -20°F to -15°F |
| 1990 Hardiness Zone: | Zone 5a: -20F to -15F |
| Average First Frost Date: | Oct. 1 - Oct. 10 |
| Average Last Frost Date: | May 21 - May 31 |
| Koppen-Geiger Climate Zone: | Dfa - Humid Continental Hot Summers |
| Ecoregion: | 83f - Mohawk Valley |
| Heat Zone Days: | Rare Over 86°F |
Annual Climate Data for ZIP Code 13439 - Richfield Springs, NY | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 10 | 11 | 21 | 31 | 42 | 51 | 56 | 55 | 47 | 36 | 28 | 17 | 34 |
| Avg Max Temp (°F) | 29 | 31 | 41 | 53 | 66 | 74 | 78 | 76 | 68 | 57 | 45 | 34 | 54 |
| Avg Precip (In.) | 2.98 | 2.41 | 3.36 | 3.67 | 4.07 | 4.39 | 4.16 | 3.95 | 4.31 | 3.47 | 3.81 | 3.21 | 43.78 |