Garrison Maryland Climate Data

Monthly Average Climate Data for Garrison Maryland

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January24.7 °F42.1 °F3.59 in.
February26.3 °F45.1 °F2.84 in.
March33.0 °F53.6 °F4.24 in.
April43.2 °F65.8 °F3.88 in.
May52.7 °F74.9 °F4.37 in.
June61.8 °F83.3 °F4.08 in.
July66.6 °F87.6 °F4.39 in.
August64.7 °F85.7 °F3.35 in.
September58.1 °F78.9 °F4.85 in.
October46.3 °F67.4 °F4.26 in.
November36.5 °F56.1 °F3.32 in.
December29.4 °F46.1 °F3.89 in.
Annual45.3 °F65.6 °F47.06 in.

Climate Data for Garrison Maryland

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateMay 1 - May 10
Average Days With Frost75-100 Days
Plant Hardiness Zone - 2023Zone 7b : 5°F to 10°F
Plant Hardiness Zone - 2012Zone 7a : 0°F to 5°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationCfa - Humid Subtropical Climate