Scranton, North Dakota has a Humid Continental Mild Summer With Dry Winters climate (Köppen classification: Dwb). Average annual temperatures range from 30.7 °F (low) to 55.8 °F (high). Annual precipitation averages 16.1 Inches. Scranton 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 | 6.7 °F | 27.6 °F | 0.36 in. |
| February | 9.7 °F | 31.6 °F | 0.41 in. |
| March | 18.9 °F | 42.3 °F | 0.72 in. |
| April | 28.9 °F | 54.6 °F | 1.29 in. |
| May | 40.3 °F | 65.4 °F | 2.58 in. |
| June | 50.3 °F | 75.4 °F | 3.33 in. |
| July | 55.9 °F | 84.0 °F | 2.07 in. |
| August | 53.3 °F | 83.9 °F | 1.52 in. |
| September | 43.7 °F | 73.9 °F | 1.44 in. |
| October | 31.2 °F | 57.6 °F | 1.46 in. |
| November | 19.2 °F | 42.5 °F | 0.51 in. |
| December | 9.8 °F | 31.1 °F | 0.39 in. |
| Annual | 30.7 °F | 55.8 °F | 16.08 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 | Abnormally Dry |
| Köppen Climate Classification | Dwb - Humid Continental Mild Summer With Dry Winters |