Athena, Oregon has a Hot-Summer Mediterranean Climate climate (Köppen classification: Csa). Average annual temperatures range from 39.5 °F (low) to 62.5 °F (high). Annual precipitation averages 21.2 Inches. Athena 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. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 27.6 °F | 40.8 °F | 2.38 in. |
| February | 29.1 °F | 45.5 °F | 1.98 in. |
| March | 33.2 °F | 53.6 °F | 2.38 in. |
| April | 37.3 °F | 60.6 °F | 2.22 in. |
| May | 43.7 °F | 69.3 °F | 2.29 in. |
| June | 49.0 °F | 76.6 °F | 1.58 in. |
| July | 54.6 °F | 87.4 °F | 0.37 in. |
| August | 54.1 °F | 86.8 °F | 0.47 in. |
| September | 47.2 °F | 77.2 °F | 0.72 in. |
| October | 38.7 °F | 63.2 °F | 1.58 in. |
| November | 31.9 °F | 48.5 °F | 2.59 in. |
| December | 27.4 °F | 40.1 °F | 2.67 in. |
| Annual | 39.5 °F | 62.5 °F | 21.23 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | Csa - Hot-Summer Mediterranean Climate |