Irwin South Carolina Climate Data

Monthly Average Climate Data for Irwin South Carolina

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January31.5 °F53.6 °F3.77 in.
February33.9 °F57.3 °F3.24 in.
March40.2 °F64.9 °F4.02 in.
April48.8 °F73.7 °F3.33 in.
May58.2 °F80.4 °F3.24 in.
June66.1 °F87.4 °F4.15 in.
July69.7 °F90.7 °F3.92 in.
August68.7 °F89.0 °F4.51 in.
September62.7 °F83.8 °F3.76 in.
October50.4 °F73.9 °F3.16 in.
November39.7 °F63.9 °F3.37 in.
December34.4 °F56.0 °F3.89 in.
Annual50.4 °F72.9 °F44.36 in.

Climate Data for Irwin South Carolina

Average First Frost DateNov. 1 - Nov. 10
Average Last Frost DateApr. 1 - Apr. 10
Average Days With Frost50-75 Days
Plant Hardiness Zone - 2023Zone 8a : 10°F to 15°F
Plant Hardiness Zone - 2012Zone 8a : 10°F to 15°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationCfa - Humid Subtropical Climate
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