Moscow, Maryland has a Humid Continental Hot Summers With Year Around Precipitation climate (Köppen classification: Dfa). Average annual temperatures range from 4.8 °C (low) to 16.7 °C (high). Annual precipitation averages 1078.7 Millimeters. Moscow is located in USDA Plant Hardiness Zone 6b. The growing season typically runs from the last frost around May 1 - May 10 through the first frost around Oct. 11 - Oct. 20.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | -5.9 °C | 3.1 °C | 74.42 mm |
| February | -5.3 °C | 5 °C | 71.63 mm |
| March | -1.8 °C | 9.8 °C | 95.25 mm |
| April | 3.6 °C | 17.6 °C | 95.25 mm |
| May | 8.8 °C | 22.4 °C | 116.84 mm |
| June | 13.6 °C | 26.6 °C | 111.25 mm |
| July | 15.9 °C | 28.8 °C | 100.33 mm |
| August | 15.1 °C | 28.1 °C | 93.22 mm |
| September | 11.3 °C | 24.6 °C | 98.04 mm |
| October | 5.3 °C | 18.1 °C | 76.96 mm |
| November | 0.1 °C | 10.9 °C | 66.8 mm |
| December | -3.7 °C | 5.2 °C | 78.74 mm |
| Annual | 4.8 °C | 16.7 °C | 1078.73 mm |
| Average First Frost Date | Oct. 11 - Oct. 20 |
| Average Last Frost Date | May 1 - May 10 |
| Average Days With Frost | 125-150 Days |
| Plant Hardiness Zone | Zone 6b : -20.6°C to -17.8°C |
| Plant Hardiness Zone - 2012 | Zone 6b : -20.6°C to -17.8°C |
| Current Drought Conditions | Abnormally Dry |
| Köppen Climate Classification | Dfa - Humid Continental Hot Summers With Year Around Precipitation |