Glenmont Maryland Climate Data

Monthly Average Climate Data for Glenmont Maryland

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January25.5 °F42.3 °F3.12 in.
February26.9 °F45.4 °F2.76 in.
March33.8 °F53.9 °F4.0 in.
April44.0 °F66.2 °F3.47 in.
May54.0 °F74.3 °F4.44 in.
June62.6 °F82.6 °F4.56 in.
July67.3 °F86.8 °F4.37 in.
August65.7 °F84.8 °F3.7 in.
September59.0 °F78.1 °F4.41 in.
October47.0 °F66.7 °F3.84 in.
November36.7 °F56.1 °F3.16 in.
December29.9 °F46.3 °F3.71 in.
Annual46 °F65.3 °F45.54 in.

Climate Data for Glenmont 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 ConditionsModerate Drought
Köppen Climate ClassificationCfa - Humid Subtropical Climate