Arnold Maryland Climate Data

Monthly Average Climate Data for Arnold Maryland

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January27.8 °F44.0 °F3.15 in.
February29.0 °F46.1 °F2.72 in.
March35.9 °F53.7 °F4.22 in.
April46.5 °F64.5 °F3.45 in.
May56.2 °F73.4 °F4.17 in.
June65.9 °F82.5 °F4.4 in.
July71.0 °F86.9 °F4.31 in.
August69.7 °F85.1 °F4.0 in.
September63.3 °F78.7 °F4.42 in.
October51.5 °F67.7 °F3.83 in.
November40.8 °F57.1 °F3.07 in.
December32.7 °F48.1 °F3.78 in.
Annual49.2 °F65.7 °F45.52 in.

Climate Data for Arnold Maryland

Average First Frost DateNov. 1 - Nov. 10
Average Last Frost DateApr. 21 - Apr. 30
Average Days With Frost50-75 Days
Plant Hardiness Zone - 2023Zone 8a : 10°F to 15°F
Plant Hardiness Zone - 2012Zone 7b : 5°F to 10°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationCfa - Humid Subtropical Climate