Lambert, Oklahoma has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 46.2 °F (low) to 71.8 °F (high). Annual precipitation averages 30.7 Inches. Lambert is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 1 - Apr. 10 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 23.0 °F | 47.9 °F | 0.92 in. |
| February | 26.1 °F | 51.7 °F | 1.15 in. |
| March | 35.2 °F | 61.9 °F | 2.24 in. |
| April | 43.6 °F | 70.7 °F | 2.89 in. |
| May | 55.1 °F | 80.2 °F | 4.18 in. |
| June | 65.6 °F | 90.6 °F | 4.31 in. |
| July | 70.2 °F | 95.6 °F | 3.2 in. |
| August | 68.5 °F | 93.8 °F | 3.92 in. |
| September | 60.4 °F | 86.3 °F | 2.27 in. |
| October | 47.0 °F | 73.5 °F | 2.91 in. |
| November | 34.8 °F | 60.4 °F | 1.45 in. |
| December | 25.1 °F | 48.7 °F | 1.3 in. |
| Annual | 46.2 °F | 71.8 °F | 30.74 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 1 - Apr. 10 |
| Average Days With Frost | 100-125 Days |
| Plant Hardiness Zone | Zone 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Severe Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |