Elgin, Oregon has a Humid Continental Climate - Dry Cool Summer climate (Köppen classification: Dsb). Average annual temperatures range from 34.9 °F (low) to 61.6 °F (high). Annual precipitation averages 23.8 Inches. Elgin is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 24.3 °F | 38.8 °F | 3.18 in. |
| February | 25.8 °F | 43.9 °F | 2.35 in. |
| March | 29.3 °F | 52.0 °F | 2.11 in. |
| April | 33.1 °F | 59.1 °F | 2.11 in. |
| May | 39.4 °F | 68.1 °F | 2.27 in. |
| June | 44.5 °F | 75.5 °F | 1.67 in. |
| July | 48.8 °F | 86.9 °F | 0.49 in. |
| August | 47.4 °F | 87.4 °F | 0.5 in. |
| September | 40.7 °F | 78.1 °F | 0.84 in. |
| October | 33.2 °F | 63.1 °F | 1.98 in. |
| November | 28.7 °F | 47.5 °F | 2.61 in. |
| December | 23.7 °F | 38.6 °F | 3.65 in. |
| Annual | 34.9 °F | 61.6 °F | 23.76 in. |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 6b : -5°F to 0°F |
| Plant Hardiness Zone - 2012 | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dsb - Humid Continental Climate - Dry Cool Summer |