Kila, Montana has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from -0.7 °C (low) to 13.1 °C (high). Annual precipitation averages 390.9 Millimeters. Kila is located in USDA Plant Hardiness Zone 5a. The growing season typically runs from the last frost around May 21 - May 31 through the first frost around Sep.11 - Sep. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -8.7 °C | 0.1 °C | 30.48 mm |
| February | -8.2 °C | 2.3 °C | 26.67 mm |
| March | -5.1 °C | 7.2 °C | 25.4 mm |
| April | -1.4 °C | 12.8 °C | 30.23 mm |
| May | 2.8 °C | 18.4 °C | 36.83 mm |
| June | 6.3 °C | 21.9 °C | 63.25 mm |
| July | 8.7 °C | 28.2 °C | 25.4 mm |
| August | 7.6 °C | 28 °C | 20.57 mm |
| September | 3.8 °C | 21.8 °C | 27.43 mm |
| October | -1.1 °C | 12.8 °C | 36.58 mm |
| November | -4.6 °C | 4.5 °C | 36.58 mm |
| December | -7.9 °C | -0.3 °C | 31.5 mm |
| Annual | -0.7 °C | 13.1 °C | 390.92 mm |
| Average First Frost Date | Sep.11 - Sep. 20 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 5a : -28.9°C to -26.1°C |
| Plant Hardiness Zone - 2012 | Zone 5a : -28.9°C to -26.1°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |