Junction City, Kansas has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 43.7 °F (low) to 67 °F (high). Annual precipitation averages 34.1 Inches. Junction City is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 18.7 °F | 40.1 °F | 0.76 in. |
| February | 22.4 °F | 45.2 °F | 1.11 in. |
| March | 32.2 °F | 56.7 °F | 1.97 in. |
| April | 42.3 °F | 67.4 °F | 3.2 in. |
| May | 53.4 °F | 76.2 °F | 5.38 in. |
| June | 63.9 °F | 86.3 °F | 4.85 in. |
| July | 68.6 °F | 91.2 °F | 4.34 in. |
| August | 66.3 °F | 89.7 °F | 4.43 in. |
| September | 57.2 °F | 81.8 °F | 2.92 in. |
| October | 44.1 °F | 69.8 °F | 2.56 in. |
| November | 32.3 °F | 55.5 °F | 1.41 in. |
| December | 22.5 °F | 43.6 °F | 1.16 in. |
| Annual | 43.7 °F | 67 °F | 34.09 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 6b : -5°F to 0°F |
| Plant Hardiness Zone - 2012 | Zone 6a : -10°F to -5°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |