Frytown, Iowa has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 4.1 °C (low) to 15.4 °C (high). Annual precipitation averages 951.5 Millimeters. Frytown is located in USDA Plant Hardiness Zone 5b. 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 | -10.7 °C | -1.3 °C | 30.99 mm |
| February | -8.7 °C | 1.3 °C | 37.08 mm |
| March | -2.6 °C | 8.6 °C | 57.4 mm |
| April | 3.6 °C | 16.2 °C | 94.49 mm |
| May | 10.3 °C | 22.2 °C | 122.43 mm |
| June | 15.9 °C | 27.3 °C | 131.83 mm |
| July | 17.8 °C | 29.2 °C | 107.95 mm |
| August | 16.4 °C | 28.1 °C | 108.71 mm |
| September | 11.6 °C | 24.8 °C | 88.65 mm |
| October | 4.9 °C | 17.5 °C | 74.42 mm |
| November | -1.7 °C | 9 °C | 55.37 mm |
| December | -7.4 °C | 1.7 °C | 42.16 mm |
| Annual | 4.1 °C | 15.4 °C | 951.48 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 5b : -26.1°C to -23.3°C |
| Plant Hardiness Zone - 2012 | Zone 5b : -26.1°C to -23.3°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |