Thedford, Nebraska has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 35.5 °F (low) to 62 °F (high). Annual precipitation averages 23.5 Inches. Thedford is located in USDA Plant Hardiness Zone 5b. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 1 - Oct. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 13.3 °F | 37.4 °F | 0.46 in. |
| February | 15.6 °F | 40.4 °F | 0.7 in. |
| March | 24.2 °F | 50.8 °F | 1.19 in. |
| April | 33.1 °F | 59.8 °F | 2.72 in. |
| May | 44.4 °F | 70.0 °F | 3.92 in. |
| June | 55.0 °F | 81.0 °F | 3.8 in. |
| July | 60.5 °F | 87.7 °F | 3.09 in. |
| August | 58.1 °F | 85.8 °F | 2.61 in. |
| September | 48.3 °F | 78.1 °F | 2.0 in. |
| October | 34.7 °F | 64.1 °F | 1.75 in. |
| November | 23.6 °F | 50.2 °F | 0.72 in. |
| December | 15.1 °F | 39.2 °F | 0.52 in. |
| Annual | 35.5 °F | 62 °F | 23.48 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 5b : -15°F to -10°F |
| Plant Hardiness Zone - 2012 | Zone 4b : -25°F to -20°F |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |