Meservey, Iowa has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 2 °C (low) to 13.2 °C (high). Annual precipitation averages 907.8 Millimeters. Meservey 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 | -13.8 °C | -4.2 °C | 22.61 mm |
| February | -11.6 °C | -1.7 °C | 26.42 mm |
| March | -4.8 °C | 5.4 °C | 51.56 mm |
| April | 1.6 °C | 13.8 °C | 98.3 mm |
| May | 8.7 °C | 20.5 °C | 128.27 mm |
| June | 14.6 °C | 26.1 °C | 142.49 mm |
| July | 16.3 °C | 27.7 °C | 112.27 mm |
| August | 14.7 °C | 26.4 °C | 104.14 mm |
| September | 9.7 °C | 23.2 °C | 82.04 mm |
| October | 2.9 °C | 15.8 °C | 62.48 mm |
| November | -3.7 °C | 6.6 °C | 43.43 mm |
| December | -10.1 °C | -1.1 °C | 33.78 mm |
| Annual | 2 °C | 13.2 °C | 907.79 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| 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 |