Quimby, Iowa has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 35.7 °F (low) to 58.7 °F (high). Annual precipitation averages 31.5 Inches. Quimby is located in USDA Plant Hardiness Zone 5a. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 8.3 °F | 27.9 °F | 0.7 in. |
| February | 12.4 °F | 32.4 °F | 0.87 in. |
| March | 23.7 °F | 45.8 °F | 1.78 in. |
| April | 34.2 °F | 60.0 °F | 3.33 in. |
| May | 46.8 °F | 71.3 °F | 4.33 in. |
| June | 58.1 °F | 81.5 °F | 4.98 in. |
| July | 61.4 °F | 84.2 °F | 3.68 in. |
| August | 58.9 °F | 82.0 °F | 4.2 in. |
| September | 49.6 °F | 76.4 °F | 3.0 in. |
| October | 36.6 °F | 63.1 °F | 2.24 in. |
| November | 24.0 °F | 46.5 °F | 1.42 in. |
| December | 14.0 °F | 33.0 °F | 1.01 in. |
| Annual | 35.7 °F | 58.7 °F | 31.54 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 150-180 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 | Abnormally Dry |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |