Grygla, Minnesota has a Humid Continental Mild Summer With Dry Winters climate (Köppen classification: Dwb). Average annual temperatures range from 27.5 °F (low) to 48.7 °F (high). Annual precipitation averages 24.1 Inches. Grygla is located in USDA Plant Hardiness Zone 3b. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Sep.11 - Sep. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -4.9 °F | 14.4 °F | 0.59 in. |
| February | -2.0 °F | 19.6 °F | 0.58 in. |
| March | 12.2 °F | 33.2 °F | 0.71 in. |
| April | 27.6 °F | 50.0 °F | 1.25 in. |
| May | 40.5 °F | 63.8 °F | 3.06 in. |
| June | 52.0 °F | 73.6 °F | 4.21 in. |
| July | 55.2 °F | 78.1 °F | 3.95 in. |
| August | 52.5 °F | 76.9 °F | 3.3 in. |
| September | 43.6 °F | 67.6 °F | 2.78 in. |
| October | 32.1 °F | 52.1 °F | 1.97 in. |
| November | 17.8 °F | 34.5 °F | 0.98 in. |
| December | 3.7 °F | 20.4 °F | 0.73 in. |
| Annual | 27.5 °F | 48.7 °F | 24.11 in. |
| Average First Frost Date | Sep.11 - Sep. 20 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 3b : -35°F to -30°F |
| Plant Hardiness Zone - 2012 | Zone 3b : -35°F to -30°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dwb - Humid Continental Mild Summer With Dry Winters |