South Haven Indiana Climate Data

Monthly Average Climate Data for South Haven Indiana

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January17.8 °F32.5 °F2.46 in.
February20.4 °F36.4 °F2.18 in.
March28.8 °F47.0 °F2.38 in.
April38.8 °F59.4 °F3.66 in.
May49.4 °F70.4 °F4.13 in.
June59.3 °F79.7 °F4.62 in.
July63.9 °F83.1 °F4.3 in.
August62.4 °F81.6 °F4.22 in.
September54.9 °F76.0 °F3.51 in.
October43.7 °F63.8 °F3.98 in.
November33.4 °F49.7 °F2.84 in.
December23.7 °F37.6 °F2.31 in.
Annual41.4 °F59.8 °F40.59 in.

Climate Data for South Haven Indiana

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateMay 11 - May 20
Average Days With Frost100-125 Days
Plant Hardiness Zone - 2023Zone 6a : -10°F to -5°F
Plant Hardiness Zone - 2012Zone 5b : -15°F to -10°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation