Pray, Montana has a Humid Continental Mild Summer, Wet All Year climate (Köppen classification: Dfb). Average annual temperatures range from 32 °F (low) to 57 °F (high). Annual precipitation averages 13.6 Inches. Pray 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.11 - Sep. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 16.8 °F | 35.2 °F | 0.44 in. |
| February | 17.4 °F | 37.7 °F | 0.5 in. |
| March | 23.9 °F | 46.8 °F | 0.68 in. |
| April | 30.0 °F | 54.6 °F | 1.35 in. |
| May | 37.5 °F | 63.6 °F | 1.86 in. |
| June | 44.3 °F | 72.5 °F | 2.3 in. |
| July | 50.3 °F | 83.1 °F | 1.49 in. |
| August | 48.5 °F | 82.6 °F | 1.27 in. |
| September | 41.7 °F | 72.4 °F | 1.22 in. |
| October | 32.5 °F | 57.7 °F | 1.09 in. |
| November | 23.8 °F | 43.5 °F | 0.82 in. |
| December | 16.9 °F | 34.4 °F | 0.56 in. |
| Annual | 32 °F | 57 °F | 13.58 in. |
| Average First Frost Date | Sep.11 - Sep. 20 |
| Average Last Frost Date | May 11 - May 20 |
| Average Days With Frost | Over 180 Days |
| Plant Hardiness Zone | Zone 5a : -20°F to -15°F |
| Plant Hardiness Zone - 2012 | Zone 4b : -25°F to -20°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Dfb - Humid Continental Mild Summer, Wet All Year |