Tyler, Minnesota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 34.2 °F (low) to 53.4 °F (high). Annual precipitation averages 28.5 Inches. Tyler is located in USDA Plant Hardiness Zone 4b. 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 | 5.4 °F | 22.3 °F | 0.72 in. |
| February | 9.3 °F | 26.8 °F | 0.83 in. |
| March | 20.8 °F | 38.7 °F | 1.52 in. |
| April | 32.8 °F | 53.2 °F | 2.88 in. |
| May | 45.8 °F | 66.5 °F | 3.84 in. |
| June | 56.7 °F | 76.7 °F | 4.43 in. |
| July | 60.8 °F | 80.9 °F | 3.47 in. |
| August | 58.1 °F | 78.5 °F | 3.46 in. |
| September | 49.6 °F | 71.9 °F | 3.1 in. |
| October | 36.2 °F | 57.3 °F | 2.12 in. |
| November | 23.0 °F | 40.9 °F | 1.19 in. |
| December | 11.4 °F | 27.1 °F | 0.97 in. |
| Annual | 34.2 °F | 53.4 °F | 28.53 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 4b : -25°F to -20°F |
| Plant Hardiness Zone - 2012 | Zone 4b : -25°F to -20°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |