Phippsburg, Colorado has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from -3.5 °C (low) to 12.6 °C (high). Annual precipitation averages 455.9 Millimeters. Phippsburg is located in USDA Plant Hardiness Zone 4b. The growing season typically runs from the last frost around May 21 - May 31 through the first frost around Sep.1 - Sep. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -14.5 °C | -1.6 °C | 36.83 mm |
| February | -13 °C | 0.7 °C | 35.81 mm |
| March | -8.2 °C | 6.1 °C | 33.02 mm |
| April | -3.8 °C | 11.5 °C | 43.94 mm |
| May | 0.6 °C | 17.2 °C | 51.31 mm |
| June | 4.3 °C | 23.5 °C | 30.48 mm |
| July | 8 °C | 27 °C | 37.85 mm |
| August | 7.1 °C | 25.8 °C | 35.31 mm |
| September | 2.8 °C | 21.7 °C | 42.16 mm |
| October | -2.8 °C | 14.3 °C | 37.34 mm |
| November | -8.3 °C | 5.9 °C | 35.05 mm |
| December | -13.7 °C | -1 °C | 36.83 mm |
| Annual | -3.5 °C | 12.6 °C | 455.93 mm |
| Average First Frost Date | Sep.1 - Sep. 10 |
| Average Last Frost Date | May 21 - May 31 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 4b : -31.7°C to -28.9°C |
| Plant Hardiness Zone - 2012 | Zone 4b : -31.7°C to -28.9°C |
| Current Drought Conditions | Exceptional Drought |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |