Fredericksburg, Ohio has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 40.5 °F (low) to 60 °F (high). Annual precipitation averages 41.1 Inches. Fredericksburg is located in USDA Plant Hardiness Zone 6a. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 18.8 °F | 34.3 °F | 2.9 in. |
| February | 20.0 °F | 37.3 °F | 2.23 in. |
| March | 27.9 °F | 47.0 °F | 3.14 in. |
| April | 38.5 °F | 60.3 °F | 3.84 in. |
| May | 49.1 °F | 70.6 °F | 4.19 in. |
| June | 58.2 °F | 79.3 °F | 4.75 in. |
| July | 61.7 °F | 82.3 °F | 4.06 in. |
| August | 60.0 °F | 81.0 °F | 3.67 in. |
| September | 52.7 °F | 75.1 °F | 3.33 in. |
| October | 41.6 °F | 62.8 °F | 3.22 in. |
| November | 32.3 °F | 50.4 °F | 2.91 in. |
| December | 24.6 °F | 39.0 °F | 2.88 in. |
| Annual | 40.5 °F | 60 °F | 41.12 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6a : -10°F to -5°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 |