Chillum Maryland Climate Data

Monthly Average Climate Data for Chillum Maryland

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January26.8 °F43.7 °F3.11 in.
February28.2 °F46.9 °F2.71 in.
March34.9 °F55.1 °F3.95 in.
April44.8 °F66.8 °F3.44 in.
May54.6 °F75.2 °F4.48 in.
June63.9 °F83.8 °F4.61 in.
July68.6 °F88.3 °F4.54 in.
August66.9 °F86.5 °F3.71 in.
September60.3 °F79.8 °F4.4 in.
October48.0 °F68.3 °F3.81 in.
November37.8 °F57.3 °F3.1 in.
December31.0 °F47.7 °F3.72 in.
Annual47.2 °F66.6 °F45.58 in.

Climate Data for Chillum Maryland

Average First Frost DateOct. 21 - Oct. 31
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