Rhame, North Dakota has a Humid Continental Mild Summer With Dry Winters climate (Köppen classification: Dwb). Average annual temperatures range from 31.7 °F (low) to 54.9 °F (high). Annual precipitation averages 16.2 Inches. Rhame is located in USDA Plant Hardiness Zone 4b. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 8.9 °F | 27.5 °F | 0.4 in. |
| February | 11.5 °F | 31.2 °F | 0.45 in. |
| March | 19.6 °F | 41.8 °F | 0.75 in. |
| April | 29.2 °F | 53.2 °F | 1.31 in. |
| May | 40.4 °F | 63.6 °F | 2.55 in. |
| June | 50.4 °F | 73.8 °F | 3.08 in. |
| July | 56.4 °F | 83.4 °F | 2.25 in. |
| August | 54.2 °F | 82.9 °F | 1.48 in. |
| September | 44.2 °F | 72.5 °F | 1.5 in. |
| October | 32.3 °F | 56.2 °F | 1.47 in. |
| November | 20.8 °F | 41.7 °F | 0.51 in. |
| December | 11.9 °F | 30.8 °F | 0.41 in. |
| Annual | 31.7 °F | 54.9 °F | 16.16 in. |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 4b : -25°F to -20°F |
| Plant Hardiness Zone - 2012 | Zone 4a : -30°F to -25°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dwb - Humid Continental Mild Summer With Dry Winters |