Upper Marlboro Maryland Climate Data

Monthly Average Climate Data for Upper Marlboro Maryland

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January26.9 °F44.2 °F3.04 in.
February28.2 °F47.3 °F2.67 in.
March35.0 °F55.2 °F3.98 in.
April45.1 °F67.2 °F3.39 in.
May54.8 °F75.2 °F4.28 in.
June64.0 °F84.1 °F4.61 in.
July68.6 °F88.6 °F4.55 in.
August66.9 °F87.1 °F3.97 in.
September60.2 °F80.6 °F4.52 in.
October47.9 °F69.1 °F3.97 in.
November37.8 °F57.4 °F3.16 in.
December31.0 °F47.9 °F3.67 in.
Annual47.2 °F67 °F45.81 in.

Climate Data for Upper Marlboro Maryland

Average First Frost DateNov. 1 - Nov. 10
Average Last Frost DateApr. 21 - Apr. 30
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
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