Bryn Mawr Pennsylvania Climate Data

Monthly Average Climate Data for Bryn Mawr Pennsylvania

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-4.1 °C4.3 °C88.65 mm
February-3.3 °C5.7 °C72.9 mm
March0.3 °C10.3 °C110.24 mm
April6.1 °C16.9 °C92.96 mm
May11.4 °C22.2 °C102.62 mm
June16.7 °C27.3 °C111.25 mm
July19.7 °C29.8 °C113.03 mm
August18.9 °C28.8 °C122.94 mm
September15.2 °C25.2 °C112.27 mm
October8.6 °C18.4 °C99.06 mm
November3 °C12.4 °C80.52 mm
December-1.1 °C6.9 °C110.74 mm
Annual7.6 °C17.4 °C1217.18 mm

Climate Data for Bryn Mawr Pennsylvania

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateApr. 21 - Apr. 30
Average Days With Frost75-100 Days
Plant Hardiness Zone - 2023Zone 7b : -15°C to -12.2°C
Plant Hardiness Zone - 2012Zone 7a : -17.8°C to -15°C
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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