Warwick, Rhode Island has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 6.7 °C (low) to 15.6 °C (high). Annual precipitation averages 1298.7 Millimeters. Warwick is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -5.3 °C | 3.3 °C | 107.44 mm |
| February | -4.6 °C | 4.3 °C | 93.47 mm |
| March | -0.9 °C | 8 °C | 136.14 mm |
| April | 4.6 °C | 14.1 °C | 122.43 mm |
| May | 10.1 °C | 19.7 °C | 88.9 mm |
| June | 15.4 °C | 24.6 °C | 105.92 mm |
| July | 19 °C | 28.1 °C | 86.11 mm |
| August | 18.3 °C | 27.2 °C | 96.27 mm |
| September | 14.4 °C | 23.4 °C | 105.92 mm |
| October | 8.3 °C | 17.2 °C | 117.86 mm |
| November | 2.8 °C | 11.5 °C | 113.28 mm |
| December | -1.8 °C | 6.3 °C | 124.97 mm |
| Annual | 6.7 °C | 15.6 °C | 1298.71 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 100-125 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 | Severe Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |