Caledonia, North Dakota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 30.4 °F (low) to 50.6 °F (high). Annual precipitation averages 23.9 Inches. Caledonia is located in USDA Plant Hardiness Zone 4a. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -2.3 °F | 15.3 °F | 0.76 in. |
| February | 1.5 °F | 20.4 °F | 0.69 in. |
| March | 15.6 °F | 33.4 °F | 0.98 in. |
| April | 30.8 °F | 51.8 °F | 1.38 in. |
| May | 43.4 °F | 66.3 °F | 2.81 in. |
| June | 55.2 °F | 75.9 °F | 4.14 in. |
| July | 58.5 °F | 80.4 °F | 3.64 in. |
| August | 55.4 °F | 79.4 °F | 2.75 in. |
| September | 46.5 °F | 70.8 °F | 2.86 in. |
| October | 34.4 °F | 55.0 °F | 2.13 in. |
| November | 19.8 °F | 36.8 °F | 0.87 in. |
| December | 6.2 °F | 21.4 °F | 0.92 in. |
| Annual | 30.4 °F | 50.6 °F | 23.93 in. |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 4a : -30°F to -25°F |
| Plant Hardiness Zone - 2012 | Zone 4a : -30°F to -25°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |