Pea Ridge, Arkansas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 46.5 °F (low) to 68.3 °F (high). Annual precipitation averages 48.8 Inches. Pea Ridge is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 24.9 °F | 45.9 °F | 2.93 in. |
| February | 28.3 °F | 50.2 °F | 2.42 in. |
| March | 36.5 °F | 59.1 °F | 3.96 in. |
| April | 45.1 °F | 68.4 °F | 5.1 in. |
| May | 54.9 °F | 75.7 °F | 6.21 in. |
| June | 63.9 °F | 84.0 °F | 4.38 in. |
| July | 67.8 °F | 88.6 °F | 4.45 in. |
| August | 66.2 °F | 88.3 °F | 3.44 in. |
| September | 58.4 °F | 81.3 °F | 4.52 in. |
| October | 46.8 °F | 70.6 °F | 4.16 in. |
| November | 36.6 °F | 58.7 °F | 4.02 in. |
| December | 28.3 °F | 48.6 °F | 3.19 in. |
| Annual | 46.5 °F | 68.3 °F | 48.78 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |