Murdo, South Dakota has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 2.3 °C (low) to 15.3 °C (high). Annual precipitation averages 525 Millimeters. Murdo is located in USDA Plant Hardiness Zone 5a. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -11.3 °C | 0.1 °C | 13.97 mm |
| February | -9.8 °C | 2.4 °C | 17.53 mm |
| March | -4.8 °C | 8.4 °C | 30.23 mm |
| April | 0.8 °C | 14.2 °C | 55.63 mm |
| May | 7.2 °C | 20.2 °C | 84.58 mm |
| June | 13.2 °C | 26.3 °C | 84.07 mm |
| July | 16.7 °C | 30.8 °C | 66.29 mm |
| August | 15.6 °C | 30.2 °C | 60.96 mm |
| September | 10.3 °C | 25.2 °C | 37.34 mm |
| October | 2.8 °C | 16.3 °C | 44.2 mm |
| November | -4.2 °C | 8.1 °C | 15.75 mm |
| December | -9.5 °C | 1.6 °C | 14.48 mm |
| Annual | 2.3 °C | 15.3 °C | 525.03 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5a : -28.9°C to -26.1°C |
| Plant Hardiness Zone - 2012 | Zone 5a : -28.9°C to -26.1°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |