Westport Indiana Climate Data

Monthly Average Climate Data for Westport Indiana

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-5.8 °C3.3 °C86.87 mm
February-4.5 °C5.6 °C72.9 mm
March0.1 °C11.4 °C100.58 mm
April5.8 °C18.3 °C126.75 mm
May11.7 °C23.4 °C131.83 mm
June16.3 °C27.7 °C131.57 mm
July18.2 °C29.4 °C109.73 mm
August17.2 °C28.9 °C94.23 mm
September12.9 °C25.9 °C84.58 mm
October6.6 °C19.4 °C86.61 mm
November1 °C11.9 °C93.22 mm
December-3.3 °C5.6 °C93.22 mm
Annual6.4 °C17.6 °C1212.09 mm

Climate Data for Westport Indiana

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 : -20.6°C to -17.8°C
Plant Hardiness Zone - 2012Zone 6a : -23.3°C to -20.6°C
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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