Mount Aetna Maryland Climate Data

Monthly Average Climate Data for Mount Aetna Maryland

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January23.8 °F40.6 °F3.07 in.
February25.1 °F44.2 °F2.36 in.
March32.1 °F52.7 °F3.52 in.
April41.9 °F65.0 °F3.66 in.
May51.6 °F73.9 °F4.23 in.
June60.5 °F82.6 °F3.75 in.
July64.8 °F87.0 °F3.79 in.
August63.1 °F85.3 °F3.51 in.
September56.1 °F78.4 °F4.12 in.
October45.1 °F66.7 °F3.61 in.
November34.9 °F55.0 °F3.01 in.
December27.9 °F44.3 °F3.35 in.
Annual43.9 °F64.6 °F41.98 in.

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 : 0°F to 5°F
Plant Hardiness Zone - 2012Zone 6b : -5°F to 0°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation