Long Beach, Minnesota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 32.6 °F (low) to 53.3 °F (high). Annual precipitation averages 26.5 Inches. Long Beach is located in USDA Plant Hardiness Zone 4b. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 1.9 °F | 20.2 °F | 0.58 in. |
| February | 5.5 °F | 25.0 °F | 0.55 in. |
| March | 18.6 °F | 37.5 °F | 1.13 in. |
| April | 32.0 °F | 54.7 °F | 2.16 in. |
| May | 45.1 °F | 68.0 °F | 3.1 in. |
| June | 55.7 °F | 77.4 °F | 4.41 in. |
| July | 60.0 °F | 81.9 °F | 3.99 in. |
| August | 57.1 °F | 80.0 °F | 3.65 in. |
| September | 48.6 °F | 72.3 °F | 2.74 in. |
| October | 35.7 °F | 57.4 °F | 2.48 in. |
| November | 22.2 °F | 39.7 °F | 1.08 in. |
| December | 9.2 °F | 25.9 °F | 0.66 in. |
| Annual | 32.6 °F | 53.3 °F | 26.53 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| 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 | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |