Thayer, Nebraska has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 39.2 °F (low) to 62.3 °F (high). Annual precipitation averages 28.5 Inches. Thayer 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. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 13.6 °F | 34.3 °F | 0.63 in. |
| February | 17.5 °F | 38.7 °F | 0.71 in. |
| March | 27.1 °F | 51.2 °F | 1.57 in. |
| April | 37.5 °F | 62.9 °F | 2.73 in. |
| May | 49.7 °F | 73.1 °F | 5.01 in. |
| June | 60.5 °F | 83.2 °F | 4.1 in. |
| July | 64.8 °F | 87.0 °F | 3.47 in. |
| August | 62.2 °F | 84.7 °F | 3.54 in. |
| September | 52.8 °F | 78.6 °F | 2.41 in. |
| October | 39.8 °F | 65.7 °F | 2.09 in. |
| November | 27.0 °F | 50.6 °F | 1.32 in. |
| December | 17.4 °F | 37.6 °F | 0.95 in. |
| Annual | 39.2 °F | 62.3 °F | 28.53 in. |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | Apr. 21 - Apr. 30 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 5b : -15°F to -10°F |
| Plant Hardiness Zone - 2012 | Zone 5b : -15°F to -10°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |