Grahamtown Maryland Climate Data

Monthly Average Climate Data for Grahamtown Maryland

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January19.8 °F34.9 °F3.03 in.
February20.8 °F38.3 °F2.96 in.
March27.6 °F46.9 °F4.0 in.
April37.7 °F61.3 °F4.05 in.
May48.0 °F70.0 °F4.71 in.
June56.1 °F77.6 °F4.59 in.
July60.3 °F81.6 °F3.72 in.
August58.7 °F80.3 °F3.29 in.
September52.0 °F74.0 °F3.82 in.
October41.4 °F62.5 °F3.34 in.
November31.9 °F49.6 °F3.06 in.
December24.7 °F39.2 °F3.41 in.
Annual39.9 °F59.7 °F43.98 in.

Climate Data for Grahamtown Maryland

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 11 - May 20
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 6b : -5°F to 0°F
Plant Hardiness Zone - 2012Zone 6b : -5°F to 0°F
Current Drought ConditionsSevere Drought
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation