Tarnov, Nebraska has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 37.8 °F (low) to 60.7 °F (high). Annual precipitation averages 28.4 Inches. Tarnov 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 | 12.3 °F | 32.9 °F | 0.61 in. |
| February | 15.9 °F | 37.3 °F | 0.67 in. |
| March | 25.7 °F | 49.3 °F | 1.63 in. |
| April | 36.3 °F | 61.1 °F | 2.97 in. |
| May | 48.3 °F | 71.7 °F | 4.59 in. |
| June | 59.2 °F | 81.7 °F | 4.65 in. |
| July | 63.4 °F | 85.4 °F | 3.29 in. |
| August | 60.9 °F | 83.1 °F | 3.3 in. |
| September | 51.5 °F | 77.0 °F | 2.56 in. |
| October | 38.3 °F | 64.1 °F | 2.13 in. |
| November | 25.4 °F | 48.6 °F | 1.19 in. |
| December | 16.2 °F | 36.2 °F | 0.82 in. |
| Annual | 37.8 °F | 60.7 °F | 28.41 in. |
| Average First Frost Date | Oct. 1 - Oct. 10 |
| 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 5a : -20°F to -15°F |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |