Rinard, Iowa has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 2.8 °C (low) to 14.2 °C (high). Annual precipitation averages 860.8 Millimeters. Rinard 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 | -12.8 °C | -3 °C | 20.32 mm |
| February | -10.5 °C | -0.4 °C | 26.42 mm |
| March | -3.9 °C | 7.2 °C | 49.78 mm |
| April | 2.2 °C | 15.2 °C | 92.46 mm |
| May | 9.2 °C | 21.2 °C | 125.73 mm |
| June | 15.3 °C | 26.8 °C | 130.81 mm |
| July | 17.2 °C | 28.4 °C | 96.77 mm |
| August | 15.7 °C | 27.2 °C | 105.66 mm |
| September | 10.6 °C | 23.9 °C | 77.22 mm |
| October | 3.7 °C | 16.8 °C | 64.01 mm |
| November | -3.3 °C | 7.6 °C | 38.35 mm |
| December | -9.4 °C | -0.1 °C | 33.27 mm |
| Annual | 2.8 °C | 14.2 °C | 860.8 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 5a : -28.9°C to -26.1°C |
| Plant Hardiness Zone - 2012 | Zone 5a : -28.9°C to -26.1°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |