Moorhead, Iowa has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 38 °F (low) to 60.1 °F (high). Annual precipitation averages 32.2 Inches. Moorhead 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. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 10.9 °F | 29.9 °F | 0.67 in. |
| February | 15.0 °F | 35.0 °F | 0.85 in. |
| March | 26.0 °F | 48.2 °F | 1.71 in. |
| April | 36.9 °F | 61.5 °F | 3.47 in. |
| May | 49.2 °F | 72.2 °F | 4.54 in. |
| June | 59.9 °F | 82.1 °F | 4.81 in. |
| July | 63.8 °F | 85.5 °F | 3.82 in. |
| August | 60.9 °F | 83.2 °F | 4.22 in. |
| September | 51.8 °F | 77.1 °F | 3.22 in. |
| October | 39.3 °F | 64.4 °F | 2.32 in. |
| November | 26.3 °F | 48.1 °F | 1.38 in. |
| December | 16.2 °F | 34.5 °F | 1.15 in. |
| Annual | 38 °F | 60.1 °F | 32.16 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5b : -15°F to -10°F |
| Plant Hardiness Zone - 2012 | Zone 5a : -20°F to -15°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |