Murray, Iowa has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 4.2 °C (low) to 15.6 °C (high). Annual precipitation averages 947.2 Millimeters. Murray is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -10.6 °C | -0.6 °C | 23.88 mm |
| February | -8.3 °C | 2.2 °C | 33.53 mm |
| March | -2.5 °C | 9.3 °C | 54.61 mm |
| April | 3.6 °C | 16.2 °C | 97.79 mm |
| May | 10.2 °C | 21.7 °C | 138.18 mm |
| June | 15.9 °C | 26.9 °C | 125.22 mm |
| July | 18.2 °C | 29.3 °C | 108.46 mm |
| August | 16.8 °C | 28.4 °C | 104.65 mm |
| September | 11.7 °C | 24.4 °C | 98.55 mm |
| October | 4.9 °C | 17.6 °C | 66.55 mm |
| November | -1.7 °C | 9.2 °C | 56.9 mm |
| December | -7.5 °C | 2.2 °C | 38.86 mm |
| Annual | 4.2 °C | 15.6 °C | 947.18 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 5b : -26.1°C to -23.3°C |
| Plant Hardiness Zone - 2012 | Zone 5b : -26.1°C to -23.3°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |