Esterbrook, Wyoming has a Cold Semi-Arid Climate climate (Köppen classification: BSk). Average annual temperatures range from -0.1 °C (low) to 13.1 °C (high). Annual precipitation averages 414.3 Millimeters. Esterbrook is located in USDA Plant Hardiness Zone 5a. The growing season typically runs from the last frost around May 11 - May 20 through the first frost around Sep. 21 - Sep. 30.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -9.4 °C | 0.9 °C | 10.92 mm |
| February | -9.2 °C | 1.9 °C | 17.53 mm |
| March | -5.3 °C | 7.1 °C | 23.62 mm |
| April | -2.1 °C | 10.9 °C | 52.07 mm |
| May | 2.9 °C | 16.2 °C | 71.37 mm |
| June | 7.7 °C | 23 °C | 66.29 mm |
| July | 11.7 °C | 27.8 °C | 37.85 mm |
| August | 10.8 °C | 27 °C | 30.99 mm |
| September | 6.2 °C | 21.8 °C | 34.29 mm |
| October | 0.1 °C | 13.7 °C | 38.1 mm |
| November | -5.2 °C | 6.1 °C | 16.51 mm |
| December | -9.2 °C | 0.8 °C | 14.73 mm |
| Annual | -0.1 °C | 13.1 °C | 414.27 mm |
| Average First Frost Date | Sep. 21 - Sep. 30 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | 150-180 Days |
| Plant Hardiness Zone | Zone 5a : -28.9°C to -26.1°C |
| Plant Hardiness Zone - 2012 | Zone 5a : -28.9°C to -26.1°C |
| Current Drought Conditions | Extreme Drought |
| Köppen Climate Classification | BSk - Cold Semi-Arid Climate |