Stockett, Montana has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 0.4 °C (low) to 14.3 °C (high). Annual precipitation averages 414.3 Millimeters. Stockett is located in USDA Plant Hardiness Zone 4b. 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 | -9.2 °C | 2.3 °C | 16.26 mm |
| February | -8.7 °C | 3.3 °C | 14.22 mm |
| March | -5.2 °C | 7.9 °C | 18.03 mm |
| April | -0.7 °C | 12.9 °C | 45.97 mm |
| May | 4.1 °C | 18.2 °C | 64.01 mm |
| June | 8.2 °C | 22.7 °C | 80.01 mm |
| July | 11.3 °C | 28.9 °C | 34.8 mm |
| August | 10.4 °C | 28.5 °C | 34.04 mm |
| September | 6.2 °C | 22.4 °C | 38.86 mm |
| October | 1 °C | 14.5 °C | 32 mm |
| November | -4.2 °C | 7.2 °C | 19.81 mm |
| December | -8.3 °C | 2.6 °C | 16.26 mm |
| Annual | 0.4 °C | 14.3 °C | 414.27 mm |
| Average First Frost Date | Sep.11 - Sep. 20 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 4b : -31.7°C to -28.9°C |
| Plant Hardiness Zone - 2012 | Zone 4a : -34.4°C to -31.7°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |