Orchard Homes, Montana has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 33.9 °F (low) to 58 °F (high). Annual precipitation averages 14.5 Inches. Orchard Homes is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 19.1 °F | 33.9 °F | 0.94 in. |
| February | 21.0 °F | 38.3 °F | 1.01 in. |
| March | 26.7 °F | 48.6 °F | 0.85 in. |
| April | 32.6 °F | 57.2 °F | 1.33 in. |
| May | 39.7 °F | 66.9 °F | 1.82 in. |
| June | 46.4 °F | 73.8 °F | 2.29 in. |
| July | 51.3 °F | 85.6 °F | 0.92 in. |
| August | 49.9 °F | 85.1 °F | 0.93 in. |
| September | 42.4 °F | 73.8 °F | 1.03 in. |
| October | 33.4 °F | 57.8 °F | 1.14 in. |
| November | 25.4 °F | 41.8 °F | 1.24 in. |
| December | 19.3 °F | 33.2 °F | 1.03 in. |
| Annual | 33.9 °F | 58 °F | 14.53 in. |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5b : -15°F to -10°F |
| Plant Hardiness Zone - 2012 | Zone 5b : -15°F to -10°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |