Francisco, Indiana has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 7.7 °C (low) to 19.1 °C (high). Annual precipitation averages 1251.2 Millimeters. Francisco is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -4.6 °C | 4.6 °C | 91.95 mm |
| February | -3.1 °C | 7.4 °C | 77.22 mm |
| March | 1.5 °C | 12.9 °C | 109.47 mm |
| April | 7.3 °C | 19.7 °C | 135.64 mm |
| May | 13.2 °C | 24.9 °C | 138.68 mm |
| June | 18 °C | 29.4 °C | 123.44 mm |
| July | 19.7 °C | 31.1 °C | 110.24 mm |
| August | 18.6 °C | 30.6 °C | 77.72 mm |
| September | 14.3 °C | 27.4 °C | 95.25 mm |
| October | 7.8 °C | 21 °C | 89.66 mm |
| November | 2.1 °C | 13.1 °C | 105.16 mm |
| December | -2.3 °C | 7 °C | 96.77 mm |
| Annual | 7.7 °C | 19.1 °C | 1251.2 mm |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 6b : -20.6°C to -17.8°C |
| Plant Hardiness Zone - 2012 | Zone 6b : -20.6°C to -17.8°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |