Gaithersburg Maryland Climate Data

Monthly Average Climate Data for Gaithersburg Maryland

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January25.3 °F41.7 °F3.13 in.
February26.9 °F44.9 °F2.76 in.
March33.5 °F53.3 °F3.98 in.
April43.5 °F65.2 °F3.44 in.
May53.3 °F73.6 °F4.5 in.
June62.0 °F82.0 °F4.6 in.
July66.7 °F86.3 °F4.28 in.
August65.0 °F84.5 °F3.62 in.
September58.5 °F77.8 °F4.46 in.
October46.6 °F66.3 °F3.95 in.
November36.8 °F55.5 °F3.35 in.
December29.6 °F45.7 °F3.64 in.
Annual45.6 °F64.7 °F45.71 in.

Climate Data for Gaithersburg 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