Pollock, South Dakota has a Humid Continental Hot Summers With Dry Winters climate (Köppen classification: Dwa). Average annual temperatures range from 32.6 °F (low) to 55.7 °F (high). Annual precipitation averages 17.9 Inches. Pollock is located in USDA Plant Hardiness Zone 4a. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 3.8 °F | 23.4 °F | 0.37 in. |
| February | 7.8 °F | 28.4 °F | 0.44 in. |
| March | 19.2 °F | 40.8 °F | 0.7 in. |
| April | 31.5 °F | 56.7 °F | 1.29 in. |
| May | 43.7 °F | 68.8 °F | 2.68 in. |
| June | 54.6 °F | 78.2 °F | 3.36 in. |
| July | 59.9 °F | 84.8 °F | 2.82 in. |
| August | 57.5 °F | 84.1 °F | 2.11 in. |
| September | 47.9 °F | 74.9 °F | 1.59 in. |
| October | 34.6 °F | 58.6 °F | 1.58 in. |
| November | 21.0 °F | 41.7 °F | 0.5 in. |
| December | 9.8 °F | 28.5 °F | 0.46 in. |
| Annual | 32.6 °F | 55.7 °F | 17.9 in. |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 4a : -30°F to -25°F |
| Plant Hardiness Zone - 2012 | Zone 4a : -30°F to -25°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dwa - Humid Continental Hot Summers With Dry Winters |