Irwin South Carolina Climate Data

Monthly Average Climate Data for Irwin South Carolina

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-0.3 °C12 °C95.76 mm
February1.1 °C14.1 °C82.3 mm
March4.6 °C18.3 °C102.11 mm
April9.3 °C23.2 °C84.58 mm
May14.6 °C26.9 °C82.3 mm
June18.9 °C30.8 °C105.41 mm
July20.9 °C32.6 °C99.57 mm
August20.4 °C31.7 °C114.55 mm
September17.1 °C28.8 °C95.5 mm
October10.2 °C23.3 °C80.26 mm
November4.3 °C17.7 °C85.6 mm
December1.3 °C13.3 °C98.81 mm
Annual10.2 °C22.7 °C1126.75 mm

Climate Data for Irwin South Carolina

Average First Frost DateNov. 1 - Nov. 10
Average Last Frost DateApr. 11 - Apr. 20
Average Days With Frost50-75 Days
Plant Hardiness Zone - 2023Zone 8a : -12.2°C to -9.4°C
Plant Hardiness Zone - 2012Zone 8a : -12.2°C to -9.4°C
Current Drought ConditionsNormal
Köppen Climate ClassificationCfa - Humid Subtropical Climate
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