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Irmo (SC) Weather and Climate: A Comprehensive Guide

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 maximum day and minimum 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, you can expect cooler temperatures, with averages dropping to around 0°C during this month. Check out our detailed temperature page for more information.

Temperature ranges by month

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

Forecast for Irmo (SC)

Mon   Dec 23
9°C | -4°C
NE 4 m/s
almost clear and no rain

almost clear and no rain

Tue   Dec 24
15°C | 2°C
N 3 m/s
almost clear and no rain

almost clear and no rain

Wed   Dec 25
15°C | 2°C
NE 4 m/s
clear and no rain

clear and no rain

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.