Wamic, Oregon has a Humid Continental Climate - Dry Cool Summer climate (Köppen classification: Dsb). Average annual temperatures range from 3.3 °C (low) to 16.9 °C (high). Annual precipitation averages 414.5 Millimeters. Wamic 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 | -2.8 °C | 5.2 °C | 66.29 mm |
| February | -2.1 °C | 7.9 °C | 50.55 mm |
| March | -0.5 °C | 11.8 °C | 36.83 mm |
| April | 1.8 °C | 15.9 °C | 28.7 mm |
| May | 5.4 °C | 20.9 °C | 28.19 mm |
| June | 8.4 °C | 24.6 °C | 18.03 mm |
| July | 11.4 °C | 30 °C | 5.59 mm |
| August | 11.2 °C | 30.1 °C | 6.86 mm |
| September | 7.7 °C | 25.7 °C | 10.41 mm |
| October | 3.2 °C | 17.3 °C | 30.48 mm |
| November | -0.6 °C | 9.2 °C | 56.13 mm |
| December | -3.1 °C | 4.6 °C | 76.45 mm |
| Annual | 3.3 °C | 16.9 °C | 414.51 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 7a : -17.8°C to -15°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dsb - Humid Continental Climate - Dry Cool Summer |