Moro, Oregon has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from 38.5 °F (low) to 61.3 °F (high). Annual precipitation averages 11.3 Inches. Moro is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 26.5 °F | 40.4 °F | 1.49 in. |
| February | 28.0 °F | 44.9 °F | 1.1 in. |
| March | 31.9 °F | 52.8 °F | 1.02 in. |
| April | 35.8 °F | 59.0 °F | 0.94 in. |
| May | 42.5 °F | 67.7 °F | 0.97 in. |
| June | 47.9 °F | 74.6 °F | 0.62 in. |
| July | 54.1 °F | 84.7 °F | 0.18 in. |
| August | 53.8 °F | 84.5 °F | 0.2 in. |
| September | 46.8 °F | 76.7 °F | 0.41 in. |
| October | 38.2 °F | 62.4 °F | 1.07 in. |
| November | 30.9 °F | 48.3 °F | 1.56 in. |
| December | 25.9 °F | 39.4 °F | 1.71 in. |
| Annual | 38.5 °F | 61.3 °F | 11.27 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 100-125 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 | Normal |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |