Rickardsville, Iowa has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 37.4 °F (low) to 56.3 °F (high). Annual precipitation averages 38.5 Inches. Rickardsville 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. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 9.9 °F | 26.0 °F | 1.26 in. |
| February | 13.5 °F | 30.5 °F | 1.39 in. |
| March | 25.1 °F | 43.4 °F | 2.06 in. |
| April | 36.5 °F | 57.3 °F | 3.83 in. |
| May | 48.2 °F | 68.9 °F | 4.58 in. |
| June | 58.5 °F | 78.5 °F | 5.81 in. |
| July | 62.1 °F | 81.6 °F | 4.83 in. |
| August | 59.9 °F | 79.9 °F | 4.04 in. |
| September | 51.4 °F | 73.1 °F | 3.86 in. |
| October | 39.3 °F | 60.2 °F | 2.91 in. |
| November | 27.5 °F | 44.6 °F | 2.23 in. |
| December | 16.6 °F | 31.8 °F | 1.68 in. |
| Annual | 37.4 °F | 56.3 °F | 38.48 in. |
| 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 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 |