Chillum Maryland Climate Data

Monthly Average Climate Data for Chillum Maryland

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-2.9 °C6.5 °C78.99 mm
February-2.1 °C8.3 °C68.83 mm
March1.6 °C12.8 °C100.33 mm
April7.1 °C19.3 °C87.38 mm
May12.6 °C24 °C113.79 mm
June17.7 °C28.8 °C117.09 mm
July20.3 °C31.3 °C115.32 mm
August19.4 °C30.3 °C94.23 mm
September15.7 °C26.6 °C111.76 mm
October8.9 °C20.2 °C96.77 mm
November3.2 °C14.1 °C78.74 mm
December-0.6 °C8.7 °C94.49 mm
Annual8.4 °C19.2 °C1157.72 mm

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 : -15°C to -12.2°C
Plant Hardiness Zone - 2012Zone 7a : -17.8°C to -15°C
Current Drought ConditionsModerate Drought
Köppen Climate ClassificationCfa - Humid Subtropical Climate