Parkline, Idaho has a Humid Continental Climate - Dry Cool Summer climate (Köppen classification: Dsb). Average annual temperatures range from 36.7 °F (low) to 58.8 °F (high). Annual precipitation averages 29.8 Inches. Parkline is located in USDA Plant Hardiness Zone 6b. 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 | 24.9 °F | 36.6 °F | 4.21 in. |
| February | 25.3 °F | 40.9 °F | 2.81 in. |
| March | 29.5 °F | 49.2 °F | 3.05 in. |
| April | 34.5 °F | 57.7 °F | 2.22 in. |
| May | 41.6 °F | 67.2 °F | 2.12 in. |
| June | 47.9 °F | 73.2 °F | 2.13 in. |
| July | 52.0 °F | 83.6 °F | 0.83 in. |
| August | 51.0 °F | 84.0 °F | 0.87 in. |
| September | 43.6 °F | 74.1 °F | 1.0 in. |
| October | 35.4 °F | 59.0 °F | 2.34 in. |
| November | 29.6 °F | 44.3 °F | 4.11 in. |
| December | 24.6 °F | 35.8 °F | 4.14 in. |
| Annual | 36.7 °F | 58.8 °F | 29.83 in. |
| 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 6b : -5°F to 0°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dsb - Humid Continental Climate - Dry Cool Summer |