Hastings, Minnesota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 2.5 °C (low) to 12.6 °C (high). Annual precipitation averages 847.4 Millimeters. Hastings is located in USDA Plant Hardiness Zone 5a. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -14.1 °C | -4.8 °C | 23.37 mm |
| February | -12.3 °C | -2.1 °C | 22.61 mm |
| March | -5.3 °C | 4.7 °C | 42.42 mm |
| April | 2.1 °C | 13 °C | 76.45 mm |
| May | 9.1 °C | 19.9 °C | 106.43 mm |
| June | 14.9 °C | 25.4 °C | 129.79 mm |
| July | 17.2 °C | 27.8 °C | 113.28 mm |
| August | 15.8 °C | 26.6 °C | 111.51 mm |
| September | 11.2 °C | 22.4 °C | 83.06 mm |
| October | 4 °C | 14.5 °C | 67.31 mm |
| November | -3.1 °C | 5.7 °C | 39.88 mm |
| December | -9.9 °C | -1.8 °C | 31.24 mm |
| Annual | 2.5 °C | 12.6 °C | 847.35 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 5a : -28.9°C to -26.1°C |
| Plant Hardiness Zone - 2012 | Zone 4b : -31.7°C to -28.9°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |