Irmo South Carolina Climate Data

Monthly Average Climate Data for Irmo South Carolina

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January34.6 °F56.0 °F4.0 in.
February36.8 °F59.5 °F3.73 in.
March43.2 °F67.1 °F4.24 in.
April51.4 °F75.6 °F3.04 in.
May60.4 °F82.7 °F3.27 in.
June68.3 °F88.8 °F4.82 in.
July71.4 °F92.0 °F4.22 in.
August70.7 °F90.4 °F4.92 in.
September65.0 °F85.4 °F4.25 in.
October53.3 °F75.9 °F3.79 in.
November42.4 °F65.9 °F3.53 in.
December36.8 °F58.3 °F4.1 in.
Annual52.9 °F74.8 °F47.91 in.

Climate Data for Irmo South Carolina

Average First Frost DateDec. 1 - Dec. 10
Average Last Frost DateApr. 11 - Apr. 20
Average Days With Frost40-50 Days
Plant Hardiness ZoneZone 8a : 10°F to 15°F
Current Drought ConditionsNormal
Köppen Climate ClassificationCfa - Humid Subtropical Climate