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Irmo (SC) Climate by Month

The temperature in Irmo can vary quite a bit throughout the year. Temperatures can be very warm during the warmest months, and mild during the cooler months. It also experiences much rain/snowfall throughout the year. Let's now guide you through the climate details for a complete overview.

Average day and night temperature

Visitors to Irmo can expect significant temperature changes throughout the year. Average daytime temperatures reach a very warm 34°C in July. In January, the coolest month of the year, temperatures drop to a moderate 13°C. At night, expect cooler temperatures, averaging 0°C during this month.

The mean minimum and maximum temperatures throughout the year

Precipitation and rainy days

Irmo is known for its substantial rain/snowfall, with annual precipitation reaching 1165 mm. Irmo experiences moderate seasonal variation in rainfall, with monthly averages ranging from 139 mm in August, the wettest month, and 67 mm in April, the driest month.

The mean monthly precipitation over the year, including rain, hail and snow

The best time of year to visit Irmo in the United States of America

During the months of April and October you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • Which is the warmest month in Irmo?
    July has an average maximum temperature of 34°C and is the warmest month of the year.
  • Which is the coldest month in Irmo?
    The coldest month is January with an average maximum temperature of 13°C.
  • Which is the wettest month in Irmo?
    August tops the wettest month list with 139 mm of rainfall.
  • Which is the driest month in Irmo?
    April is the driest month with 67 mm of precipitation.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.

    Forecast for Irmo (SC)

    Fri   Nov 22
    13°C | 3°C
    NW 25 km/h
    0.1 mm
    partly cloudy and small chance of slight rain

    partly cloudy and small chance of slight rain

    Sat   Nov 23
    16°C | 3°C
    W 11 km/h
    clear and no rain

    clear and no rain

    Sun   Nov 24
    19°C | 3°C
    SW 14 km/h
    clear and no rain

    clear and no rain