Loveland, Colorado has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 1.5 °C (low) to 17.7 °C (high). Annual precipitation averages 402.8 Millimeters. Loveland is located in USDA Plant Hardiness Zone 5b. 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 | -9.3 °C | 5.9 °C | 13.21 mm |
| February | -8.1 °C | 7 °C | 13.46 mm |
| March | -3.6 °C | 12.7 °C | 30.48 mm |
| April | 0.3 °C | 16.3 °C | 45.21 mm |
| May | 5.7 °C | 21.1 °C | 71.88 mm |
| June | 10.8 °C | 27.7 °C | 49.02 mm |
| July | 13.9 °C | 31.1 °C | 35.31 mm |
| August | 12.7 °C | 29.8 °C | 46.99 mm |
| September | 7.9 °C | 25.6 °C | 39.62 mm |
| October | 1.4 °C | 18 °C | 27.69 mm |
| November | -4.6 °C | 11 °C | 16.51 mm |
| December | -9.3 °C | 5.7 °C | 13.46 mm |
| Annual | 1.5 °C | 17.7 °C | 402.84 mm |
| 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 5b : -26.1°C to -23.3°C |
| Plant Hardiness Zone - 2012 | Zone 5b : -26.1°C to -23.3°C |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |