Surprise, British Columbia climate data is summarized below. Average annual temperatures range from -5.9 °C (low) to 1.1 °C (high). Annual precipitation averages 234 Millimeters. Surprise is located in USDA Plant Hardiness Zone 1b. The growing season typically runs from the last frost around Jun. 11 - Jun. 20 through the first frost around Aug. 21 - Aug. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -15.66 °C | -9.09 °C | 0 mm |
| February | -15.94 °C | -7.89 °C | 0 mm |
| March | -15.91 °C | -6.95 °C | 0 mm |
| April | -8.28 °C | -0.71 °C | 0 mm |
| May | -0.86 °C | 7.13 °C | 21 mm |
| June | 3.8 °C | 12.54 °C | 42 mm |
| July | 5.65 °C | 13.94 °C | 45 mm |
| August | 5.05 °C | 12.76 °C | 42 mm |
| September | 1.16 °C | 6.73 °C | 57 mm |
| October | -2.76 °C | 0.76 °C | 27 mm |
| November | -11.45 °C | -6.67 °C | 0 mm |
| December | -15.18 °C | -9.26 °C | 0 mm |
| Annual | -5.9 °C | 1.1 °C | 234 mm |
| Average First Frost Date | Aug. 21 - Aug. 31 |
| Average Last Frost Date | Jun. 11 - Jun. 20 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 1b : |
| Current Drought Conditions | Normal |