Lowden, Iowa has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 38.8 °F (low) to 59.2 °F (high). Annual precipitation averages 37.9 Inches. Lowden is located in USDA Plant Hardiness Zone 5a. 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 | 12.0 °F | 28.8 °F | 1.43 in. |
| February | 15.6 °F | 33.3 °F | 1.65 in. |
| March | 26.8 °F | 46.4 °F | 2.48 in. |
| April | 37.8 °F | 60.5 °F | 3.85 in. |
| May | 49.7 °F | 71.7 °F | 4.55 in. |
| June | 59.8 °F | 81.0 °F | 4.92 in. |
| July | 63.0 °F | 83.9 °F | 4.32 in. |
| August | 60.7 °F | 82.3 °F | 4.1 in. |
| September | 52.1 °F | 76.4 °F | 3.66 in. |
| October | 40.5 °F | 63.4 °F | 2.95 in. |
| November | 28.7 °F | 47.7 °F | 2.28 in. |
| December | 18.4 °F | 34.5 °F | 1.74 in. |
| Annual | 38.8 °F | 59.2 °F | 37.93 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 5a : -20°F to -15°F |
| Plant Hardiness Zone - 2012 | Zone 5a : -20°F to -15°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |