Mercersville Maryland Climate Data

Monthly Average Climate Data for Mercersville Maryland

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January22.1 °F41.4 °F2.95 in.
February23.6 °F45.1 °F2.37 in.
March30.0 °F53.7 °F3.51 in.
April40.8 °F66.0 °F3.5 in.
May50.8 °F74.7 °F4.27 in.
June59.3 °F83.3 °F3.93 in.
July63.9 °F87.7 °F3.84 in.
August62.3 °F86.1 °F3.41 in.
September55.1 °F79.4 °F4.2 in.
October42.5 °F67.7 °F3.45 in.
November33.1 °F55.8 °F2.99 in.
December26.6 °F45.0 °F3.33 in.
Annual42.5 °F65.5 °F41.75 in.

Climate Data for Mercersville 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 ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation