Severn Maryland Climate Data

Monthly Average Climate Data for Severn Maryland

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January25.4 °F43.2 °F3.25 in.
February26.9 °F46.1 °F2.97 in.
March33.7 °F54.4 °F4.28 in.
April43.6 °F66.3 °F3.57 in.
May53.4 °F75.0 °F4.34 in.
June62.6 °F83.5 °F4.37 in.
July67.4 °F87.9 °F4.56 in.
August65.5 °F86.1 °F3.99 in.
September58.8 °F79.5 °F4.59 in.
October46.7 °F68.1 °F3.99 in.
November36.6 °F57.0 °F3.24 in.
December29.6 °F47.3 °F3.99 in.
Annual45.9 °F66.2 °F47.14 in.

Climate Data for Severn 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 ConditionsAbnormally Dry
Köppen Climate ClassificationCfa - Humid Subtropical Climate