Olcott, New York has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 5.6 °C (low) to 13.2 °C (high). Annual precipitation averages 863.4 Millimeters. Olcott is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -6.3 °C | 0.5 °C | 62.74 mm |
| February | -5.8 °C | 1.2 °C | 50.55 mm |
| March | -2.6 °C | 4.9 °C | 59.69 mm |
| April | 2.7 °C | 10.9 °C | 74.93 mm |
| May | 8.6 °C | 17.7 °C | 73.41 mm |
| June | 14.6 °C | 22.7 °C | 75.18 mm |
| July | 17.9 °C | 25.7 °C | 78.49 mm |
| August | 17.3 °C | 25.2 °C | 76.2 mm |
| September | 13.6 °C | 21.7 °C | 85.09 mm |
| October | 7.6 °C | 14.9 °C | 83.82 mm |
| November | 2.2 °C | 8.9 °C | 72.39 mm |
| December | -2.6 °C | 3.6 °C | 70.87 mm |
| Annual | 5.6 °C | 13.2 °C | 863.36 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 7a : -17.8°C to -15°C |
| Plant Hardiness Zone - 2012 | Zone 6b : -20.6°C to -17.8°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |