Primrose, Nebraska has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 3 °C (low) to 16.2 °C (high). Annual precipitation averages 685.3 Millimeters. Primrose is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around Apr. 21 - Apr. 30 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -10.7 °C | 1.2 °C | 13.46 mm |
| February | -8.8 °C | 3.6 °C | 17.27 mm |
| March | -3.6 °C | 10.1 °C | 37.34 mm |
| April | 2.1 °C | 16.2 °C | 71.63 mm |
| May | 8.4 °C | 21.8 °C | 109.47 mm |
| June | 14.6 °C | 27.6 °C | 102.87 mm |
| July | 17.1 °C | 29.9 °C | 83.06 mm |
| August | 15.8 °C | 28.6 °C | 86.61 mm |
| September | 10.5 °C | 25.1 °C | 62.23 mm |
| October | 3.1 °C | 17.9 °C | 54.36 mm |
| November | -3.9 °C | 9.5 °C | 27.69 mm |
| December | -8.9 °C | 2.9 °C | 19.3 mm |
| Annual | 3 °C | 16.2 °C | 685.29 mm |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5b : -26.1°C to -23.3°C |
| Plant Hardiness Zone - 2012 | Zone 5a : -28.9°C to -26.1°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |