Grantsville Maryland Climate Data

Monthly Average Climate Data for Grantsville Maryland

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January17.1 °F34.0 °F3.57 in.
February18.7 °F37.3 °F3.3 in.
March25.1 °F45.8 °F3.98 in.
April34.9 °F59.6 °F4.15 in.
May45.4 °F68.3 °F4.99 in.
June53.8 °F75.6 °F4.89 in.
July57.6 °F79.2 °F4.28 in.
August56.1 °F77.9 °F3.76 in.
September49.2 °F71.8 °F3.71 in.
October38.6 °F60.5 °F3.2 in.
November29.0 °F48.3 °F3.06 in.
December22.4 °F38.2 °F3.65 in.
Annual37.3 °F58 °F46.54 in.

Climate Data for Grantsville Maryland

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateJun. 1 - Jun. 10
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 6a : -10°F to -5°F
Plant Hardiness Zone - 2012Zone 5b : -15°F to -10°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
2024 plantmaps.com