Thurmont Maryland Climate Data

Monthly Average Climate Data for Thurmont Maryland

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January23.8 °F40.3 °F3.36 in.
February25.1 °F43.7 °F2.59 in.
March31.9 °F52.3 °F3.79 in.
April41.9 °F64.7 °F4.06 in.
May51.6 °F73.5 °F4.3 in.
June60.7 °F82.0 °F4.08 in.
July65.3 °F86.6 °F3.92 in.
August63.4 °F84.6 °F3.57 in.
September56.5 °F78.0 °F4.76 in.
October45.3 °F66.5 °F3.8 in.
November35.0 °F54.9 °F3.34 in.
December28.3 °F44.4 °F3.62 in.
Annual44.1 °F64.3 °F45.19 in.

Climate Data for Thurmont Maryland

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 11 - May 20
Average Days With Frost100-125 Days
Plant Hardiness Zone - 2023Zone 7a : 0°F to 5°F
Plant Hardiness Zone - 2012Zone 6b : -5°F to 0°F
Current Drought ConditionsModerate Drought
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation