Mount Aetna Maryland Climate Data

Monthly Average Climate Data for Mount Aetna Maryland

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-4.6 °C4.8 °C77.98 mm
February-3.8 °C6.8 °C59.94 mm
March0.1 °C11.5 °C89.41 mm
April5.5 °C18.3 °C92.96 mm
May10.9 °C23.3 °C107.44 mm
June15.8 °C28.1 °C95.25 mm
July18.2 °C30.6 °C96.27 mm
August17.3 °C29.6 °C89.15 mm
September13.4 °C25.8 °C104.65 mm
October7.3 °C19.3 °C91.69 mm
November1.6 °C12.8 °C76.45 mm
December-2.3 °C6.8 °C85.09 mm
Annual6.6 °C18.1 °C1066.28 mm

Climate Data for Mount Aetna Maryland

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 11 - May 20
Average Days With Frost100-125 Days
Plant Hardiness Zone - 2023Zone 7a : -17.8°C to -15°C
Plant Hardiness Zone - 2012Zone 6b : -20.6°C to -17.8°C
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation