Irwin Pennsylvania Climate Data

Monthly Average Climate Data for Irwin Pennsylvania

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January20.9 °F37.3 °F3.2 in.
February21.8 °F40.1 °F2.61 in.
March28.9 °F49.2 °F3.31 in.
April38.9 °F62.4 °F3.5 in.
May49.4 °F72.1 °F4.03 in.
June58.1 °F80.0 °F4.48 in.
July62.4 °F83.8 °F4.46 in.
August60.7 °F82.6 °F3.8 in.
September53.6 °F76.2 °F3.67 in.
October42.2 °F64.1 °F3.18 in.
November32.7 °F51.8 °F3.09 in.
December26.1 °F41.5 °F3.19 in.
Annual41.3 °F61.8 °F42.52 in.

Climate Data for Irwin Pennsylvania

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateMay 1 - May 10
Average Days With Frost100-125 Days
Plant Hardiness Zone - 2023Zone 6b : -5°F to 0°F
Plant Hardiness Zone - 2012Zone 6a : -10°F to -5°F
Current Drought ConditionsModerate Drought
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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