Germantown Maryland Climate Data

Monthly Average Climate Data for Germantown Maryland

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January25.0 °F41.5 °F3.09 in.
February26.7 °F44.8 °F2.75 in.
March33.2 °F53.3 °F3.99 in.
April43.3 °F65.4 °F3.45 in.
May53.1 °F73.9 °F4.56 in.
June61.8 °F82.3 °F4.69 in.
July66.7 °F86.5 °F4.26 in.
August64.7 °F84.7 °F3.63 in.
September58.1 °F78.0 °F4.53 in.
October46.3 °F66.5 °F3.99 in.
November36.4 °F55.4 °F3.29 in.
December29.4 °F45.4 °F3.62 in.
Annual45.4 °F64.8 °F45.85 in.

Climate Data for Germantown Maryland

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateMay 1 - May 10
Average Days With Frost100-125 Days
Plant Hardiness Zone - 2023Zone 7b : 5°F to 10°F
Plant Hardiness Zone - 2012Zone 7a : 0°F to 5°F
Current Drought ConditionsModerate Drought
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation