Churchill, Manitoba climate data is summarized below. Average annual temperatures range from -6.9 °C (low) to -2 °C (high). Annual precipitation averages 314 Millimeters. Churchill is located in USDA Plant Hardiness Zone 0a. The growing season typically runs from the last frost around Jun. 1 - Jun. 10 through the first frost around Sep.1 - Sep. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -23.17 °C | -17.93 °C | 0 mm |
| February | -22.69 °C | -16.87 °C | 0 mm |
| March | -18.12 °C | -11.43 °C | 0 mm |
| April | -9.41 °C | -3.48 °C | 3 mm |
| May | -3.23 °C | 1.33 °C | 16 mm |
| June | 1.98 °C | 6.83 °C | 39 mm |
| July | 7.51 °C | 12.58 °C | 69 mm |
| August | 9.44 °C | 13.68 °C | 79 mm |
| September | 5.31 °C | 8.89 °C | 59 mm |
| October | -0.56 °C | 2.52 °C | 49 mm |
| November | -10.62 °C | -6.34 °C | 0 mm |
| December | -18.79 °C | -14.01 °C | 0 mm |
| Annual | -6.9 °C | -2 °C | 314 mm |
| Average First Frost Date | Sep.1 - Sep. 10 |
| Average Last Frost Date | Jun. 1 - Jun. 10 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | |
| Current Drought Conditions | Normal |