Baltic, South Dakota has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 34.9 °F (low) to 55.5 °F (high). Annual precipitation averages 27.6 Inches. Baltic is located in USDA Plant Hardiness Zone 5a. 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 | 6.1 °F | 24.4 °F | 0.6 in. |
| February | 10.3 °F | 29.1 °F | 0.81 in. |
| March | 22.0 °F | 41.6 °F | 1.39 in. |
| April | 33.7 °F | 56.2 °F | 2.95 in. |
| May | 46.7 °F | 68.3 °F | 3.69 in. |
| June | 58.0 °F | 78.2 °F | 4.24 in. |
| July | 61.9 °F | 82.6 °F | 3.37 in. |
| August | 59.0 °F | 80.3 °F | 3.39 in. |
| September | 50.2 °F | 73.5 °F | 2.97 in. |
| October | 36.5 °F | 59.5 °F | 2.16 in. |
| November | 22.9 °F | 43.1 °F | 1.11 in. |
| December | 11.7 °F | 29.1 °F | 0.87 in. |
| Annual | 34.9 °F | 55.5 °F | 27.55 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5a : -20°F to -15°F |
| Plant Hardiness Zone - 2012 | Zone 4b : -25°F to -20°F |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |