Surrey, North Dakota has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from -1.3 °C (low) to 10.8 °C (high). Annual precipitation averages 466.4 Millimeters. Surrey 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 | -17.7 °C | -7.6 °C | 14.22 mm |
| February | -15.7 °C | -4.9 °C | 13.97 mm |
| March | -9.1 °C | 1.8 °C | 19.05 mm |
| April | -1.7 °C | 11.4 °C | 23.37 mm |
| May | 5.4 °C | 18.8 °C | 67.82 mm |
| June | 11.6 °C | 23.7 °C | 96.77 mm |
| July | 13.9 °C | 27.1 °C | 67.06 mm |
| August | 12.4 °C | 27.2 °C | 51.31 mm |
| September | 7.2 °C | 21.6 °C | 40.64 mm |
| October | 0 °C | 12.6 °C | 35.31 mm |
| November | -7.8 °C | 2.7 °C | 20.83 mm |
| December | -14.4 °C | -4.8 °C | 16 mm |
| Annual | -1.3 °C | 10.8 °C | 466.35 mm |
| 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 : -34.4°C to -31.7°C |
| Plant Hardiness Zone - 2012 | Zone 4a : -34.4°C to -31.7°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |