Richfield Springs, New York has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 1.9 °C (low) to 13 °C (high). Annual precipitation averages 1211.6 Millimeters. Richfield Springs is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -10.7 °C | -1.2 °C | 80.52 mm |
| February | -10 °C | 0.1 °C | 69.85 mm |
| March | -6.2 °C | 4.7 °C | 88.14 mm |
| April | 0.2 °C | 12.4 °C | 100.84 mm |
| May | 6.3 °C | 19.4 °C | 100.58 mm |
| June | 11.4 °C | 23.6 °C | 122.94 mm |
| July | 13.9 °C | 26.1 °C | 125.73 mm |
| August | 13.1 °C | 25.2 °C | 117.6 mm |
| September | 9.2 °C | 21.4 °C | 104.65 mm |
| October | 3.5 °C | 14.6 °C | 115.57 mm |
| November | -1.9 °C | 7.7 °C | 95 mm |
| December | -6.4 °C | 1.6 °C | 90.17 mm |
| Annual | 1.9 °C | 13 °C | 1211.59 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5b : -26.1°C to -23.3°C |
| Plant Hardiness Zone - 2012 | Zone 5a : -28.9°C to -26.1°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |