Gambier, Ohio has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 39.8 °F (low) to 60.5 °F (high). Annual precipitation averages 41.9 Inches. Gambier 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. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 18.1 °F | 34.7 °F | 3.23 in. |
| February | 19.6 °F | 37.8 °F | 2.44 in. |
| March | 27.6 °F | 47.8 °F | 3.35 in. |
| April | 38.0 °F | 61.2 °F | 3.91 in. |
| May | 48.7 °F | 71.2 °F | 4.32 in. |
| June | 57.9 °F | 79.6 °F | 4.76 in. |
| July | 61.1 °F | 83.0 °F | 4.17 in. |
| August | 59.3 °F | 81.8 °F | 3.54 in. |
| September | 51.8 °F | 75.8 °F | 3.28 in. |
| October | 40.4 °F | 63.6 °F | 2.87 in. |
| November | 31.3 °F | 50.5 °F | 2.95 in. |
| December | 23.8 °F | 39.3 °F | 3.08 in. |
| Annual | 39.8 °F | 60.5 °F | 41.9 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| 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 5b : -15°F to -10°F |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |