Bryn Mawr Pennsylvania Climate Data

Monthly Average Climate Data for Bryn Mawr Pennsylvania

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January24.7 °F39.7 °F3.49 in.
February26.0 °F42.3 °F2.87 in.
March32.6 °F50.6 °F4.34 in.
April42.9 °F62.5 °F3.66 in.
May52.6 °F71.9 °F4.04 in.
June62.0 °F81.1 °F4.38 in.
July67.5 °F85.7 °F4.45 in.
August66.0 °F83.9 °F4.84 in.
September59.3 °F77.3 °F4.42 in.
October47.5 °F65.2 °F3.9 in.
November37.4 °F54.3 °F3.17 in.
December30.0 °F44.4 °F4.36 in.
Annual45.7 °F63.2 °F47.92 in.

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 : 5°F to 10°F
Plant Hardiness Zone - 2012Zone 7a : 0°F to 5°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation