Westport Indiana Climate Data

Monthly Average Climate Data for Westport Indiana

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January21.6 °F37.9 °F3.42 in.
February23.9 °F42.1 °F2.87 in.
March32.2 °F52.5 °F3.96 in.
April42.4 °F65.0 °F4.99 in.
May53.0 °F74.2 °F5.19 in.
June61.4 °F81.9 °F5.18 in.
July64.7 °F84.9 °F4.32 in.
August62.9 °F84.1 °F3.71 in.
September55.3 °F78.7 °F3.33 in.
October43.8 °F67.0 °F3.41 in.
November33.8 °F53.5 °F3.67 in.
December26.1 °F42.1 °F3.67 in.
Annual43.4 °F63.7 °F47.72 in.

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 : -5°F to 0°F
Plant Hardiness Zone - 2012Zone 6a : -10°F to -5°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
2024 plantmaps.com