Strathcona, Minnesota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from -2.4 °C (low) to 9.2 °C (high). Annual precipitation averages 628.4 Millimeters. Strathcona is located in USDA Plant Hardiness Zone 3b. 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 | -20.7 °C | -10.1 °C | 17.02 mm |
| February | -19.2 °C | -7.6 °C | 14.73 mm |
| March | -11.2 °C | 0.2 °C | 19.81 mm |
| April | -2.3 °C | 9.8 °C | 29.21 mm |
| May | 5.1 °C | 17.7 °C | 83.82 mm |
| June | 11.6 °C | 23.1 °C | 111 mm |
| July | 13.2 °C | 25.6 °C | 99.06 mm |
| August | 11.6 °C | 25.2 °C | 77.72 mm |
| September | 6.5 °C | 20.1 °C | 74.17 mm |
| October | 0.2 °C | 11.2 °C | 53.59 mm |
| November | -7.9 °C | 1.3 °C | 26.16 mm |
| December | -15.8 °C | -6.7 °C | 22.1 mm |
| Annual | -2.4 °C | 9.2 °C | 628.39 mm |
| 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 3b : -37.2°C to -34.4°C |
| Plant Hardiness Zone - 2012 | Zone 3b : -37.2°C to -34.4°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |