Wareham Center, Massachusetts has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 6.1 °C (low) to 15.4 °C (high). Annual precipitation averages 1292.1 Millimeters. Wareham Center 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 | -4.9 °C | 3.7 °C | 107.7 mm |
| February | -4.6 °C | 4.4 °C | 92.96 mm |
| March | -1.6 °C | 7.8 °C | 138.43 mm |
| April | 3.5 °C | 13.2 °C | 114.05 mm |
| May | 8.9 °C | 18.8 °C | 92.96 mm |
| June | 14.2 °C | 23.9 °C | 96.01 mm |
| July | 17.9 °C | 27.3 °C | 81.53 mm |
| August | 17.3 °C | 26.7 °C | 92.46 mm |
| September | 13.7 °C | 23.1 °C | 109.73 mm |
| October | 7.9 °C | 17.2 °C | 124.71 mm |
| November | 2.9 °C | 11.8 °C | 111.25 mm |
| December | -1.6 °C | 6.8 °C | 130.3 mm |
| Annual | 6.1 °C | 15.4 °C | 1292.09 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| 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 |