Peterson, Minnesota has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 36 °F (low) to 56 °F (high). Annual precipitation averages 36 Inches. Peterson 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 | 7.4 °F | 25.2 °F | 1.09 in. |
| February | 10.7 °F | 29.8 °F | 1.05 in. |
| March | 23.0 °F | 42.3 °F | 1.86 in. |
| April | 35.1 °F | 56.8 °F | 3.87 in. |
| May | 47.0 °F | 69.0 °F | 4.63 in. |
| June | 57.5 °F | 78.6 °F | 5.58 in. |
| July | 61.4 °F | 82.3 °F | 4.05 in. |
| August | 59.1 °F | 80.3 °F | 4.43 in. |
| September | 50.8 °F | 73.3 °F | 3.85 in. |
| October | 38.4 °F | 59.7 °F | 2.62 in. |
| November | 26.7 °F | 44.0 °F | 1.75 in. |
| December | 14.9 °F | 30.7 °F | 1.22 in. |
| Annual | 36 °F | 56 °F | 36 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 | Moderate Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |