North Richland Hills, Texas has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 13.4 °C (low) to 24.9 °C (high). Annual precipitation averages 964.7 Millimeters. North Richland Hills is located in USDA Plant Hardiness Zone 8b. The growing season typically runs from the last frost around Mar. 1 - Mar. 10 through the first frost around Nov. 11 - Nov. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 2.1 °C | 13.6 °C | 60.71 mm |
| February | 4.1 °C | 15.9 °C | 68.58 mm |
| March | 8.4 °C | 19.9 °C | 88.14 mm |
| April | 12.7 °C | 24.6 °C | 83.31 mm |
| May | 17.9 °C | 28.7 °C | 113.03 mm |
| June | 22.4 °C | 33.1 °C | 99.57 mm |
| July | 24.3 °C | 35.4 °C | 53.85 mm |
| August | 24.2 °C | 35.7 °C | 64.01 mm |
| September | 20.1 °C | 31.7 °C | 81.53 mm |
| October | 13.8 °C | 26.1 °C | 108.46 mm |
| November | 7.9 °C | 19.4 °C | 71.88 mm |
| December | 3.2 °C | 14.7 °C | 71.63 mm |
| Annual | 13.4 °C | 24.9 °C | 964.7 mm |
| Average First Frost Date | Nov. 11 - Nov. 20 |
| Average Last Frost Date | Mar. 1 - Mar. 10 |
| Average Days With Frost | 30-40 Days |
| Plant Hardiness Zone | Zone 8b : -9.4°C to -6.7°C |
| Plant Hardiness Zone - 2012 | Zone 8a : -12.2°C to -9.4°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |