Livermore, Iowa has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 2.6 °C (low) to 13.7 °C (high). Annual precipitation averages 870 Millimeters. Livermore is located in USDA Plant Hardiness Zone 5a. 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 | -13.2 °C | -3.7 °C | 21.34 mm |
| February | -10.9 °C | -1.3 °C | 26.42 mm |
| March | -4.2 °C | 6.1 °C | 51.05 mm |
| April | 2.1 °C | 14.4 °C | 93.98 mm |
| May | 9.1 °C | 20.9 °C | 122.43 mm |
| June | 15.1 °C | 26.4 °C | 133.86 mm |
| July | 17 °C | 28.1 °C | 102.87 mm |
| August | 15.4 °C | 26.8 °C | 107.19 mm |
| September | 10.4 °C | 23.6 °C | 77.98 mm |
| October | 3.5 °C | 16.3 °C | 60.2 mm |
| November | -3.4 °C | 7.1 °C | 40.39 mm |
| December | -9.7 °C | -0.7 °C | 32.26 mm |
| Annual | 2.6 °C | 13.7 °C | 869.97 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 5a : -28.9°C to -26.1°C |
| Plant Hardiness Zone - 2012 | Zone 5a : -28.9°C to -26.1°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |