Persia, Iowa has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 39 °F (low) to 60.3 °F (high). Annual precipitation averages 33.7 Inches. Persia 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. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 11.8 °F | 30.5 °F | 0.77 in. |
| February | 15.8 °F | 35.4 °F | 1.0 in. |
| March | 26.9 °F | 48.7 °F | 1.84 in. |
| April | 37.8 °F | 61.6 °F | 3.45 in. |
| May | 50.2 °F | 72.1 °F | 4.99 in. |
| June | 60.8 °F | 81.9 °F | 5.03 in. |
| July | 64.6 °F | 85.2 °F | 3.78 in. |
| August | 61.8 °F | 83.2 °F | 4.12 in. |
| September | 52.6 °F | 77.1 °F | 3.31 in. |
| October | 40.2 °F | 64.4 °F | 2.59 in. |
| November | 27.5 °F | 48.2 °F | 1.48 in. |
| December | 17.5 °F | 35.4 °F | 1.29 in. |
| Annual | 39 °F | 60.3 °F | 33.65 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 5b : -15°F to -10°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 |