Antietam Maryland Climate Data

Monthly Average Climate Data for Antietam Maryland

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January22.2 °F41.5 °F3.04 in.
February23.7 °F45.1 °F2.42 in.
March30.3 °F53.9 °F3.62 in.
April41.1 °F66.4 °F3.46 in.
May51.3 °F75.1 °F4.4 in.
June59.6 °F83.4 °F3.91 in.
July64.3 °F87.9 °F4.04 in.
August62.6 °F86.1 °F3.33 in.
September55.6 °F79.6 °F4.32 in.
October42.6 °F68.2 °F3.45 in.
November33.3 °F56.1 °F3.1 in.
December26.9 °F45.3 °F3.44 in.
Annual42.8 °F65.7 °F42.53 in.

Climate Data for Antietam Maryland

Average First Frost DateNov. 11 - Nov. 20
Average Last Frost DateMay 1 - May 10
Average Days With Frost100-125 Days
Plant Hardiness ZoneZone 6b : -5°F to 0°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation