Fordwich, Ontario climate data is summarized below. Average annual temperatures range from 36 °F (low) to 52.9 °F (high). Annual precipitation averages 12.7 Inches. Fordwich is located in USDA Plant Hardiness Zone 5b. 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 | -23.5 °F | -19.6 °F | 0 in. |
| February | -24.5 °F | -19.8 °F | 0 in. |
| March | -21.2 °F | -16 °F | 558.8 in. |
| April | -17.5 °F | -11.5 °F | 508 in. |
| May | -13.9 °F | -7.5 °F | 939.8 in. |
| June | -11.2 °F | -5 °F | 1346.2 in. |
| July | -10.1 °F | -3.8 °F | 1600.2 in. |
| August | -10.2 °F | -4.2 °F | 1727.2 in. |
| September | -12.4 °F | -6.4 °F | 812.8 in. |
| October | -15 °F | -10.3 °F | 330.2 in. |
| November | -18.2 °F | -14.1 °F | 254 in. |
| December | -21.2 °F | -17.9 °F | 101.6 in. |
| Annual | 36 °F | 52.9 °F | 12.69 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5b : -15°F to -10°F |
| Current Drought Conditions | Normal |