Best year time to visit Irmo

General weather information about Irmo

Average annual temperature is 18.4 °C

Absolute maximum temperature: 36.1 °C

Absolute minimum temperature: -2 °C

Number of sunny days: 208

Number of rainy days: 157

Number of snow days:

Average annual precipitation: 1277 mm

Look at detailed online map of Irmo

* Weather data for Irmo United States is based on climate observations for 2023 year

Irmo air temperature forecast for each month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Absolute maximum temperature (°C) 21.2 25.8 27.9 29.5 32.6 33.8 35.4 36.1 32 27.7 26.2 22.2
Average daytime temperature (°C) 15.1 18.7 20.3 23.7 25.5 29.4 32.7 32.3 27.8 23.2 17.6 15
Average temperature (°C) 10.5 13.4 14.5 17.9 20.3 24.2 27.9 27.3 23.2 18.2 12.6 10.1
Average night temperature (°C) 7 9.4 9.7 12.8 15.8 19.7 24.1 23.3 19.1 14.1 8.8 6.6
Absolute minimum temperature (°C) -1.2 -0.7 0.7 5.4 8.5 15.4 21.9 21 14.9 7.9 0.2 -2

Irmo monthly weather indicators

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daylight maximum duration (h) 10.5 11.4 12.5 13.5 14.3 14.4 14.4 13.8 12.9 11.9 10.8 10.1
Daylight mean duration (h) 10.2 11 12 13 13.9 14.4 14.2 13.4 12.4 11.3 10.4 9.9
Daylight minimum duration (h) 9.9 10.6 11.5 12.6 13.5 14.3 13.9 12.9 11.9 10.8 10.1 9.9
Sunshine mean duration (h) 7 7.8 8.8 9.8 10.7 11.1 11.5 11.2 10.5 8.9 7.9 6.7
Precipitation (mm) 148 100 109 134 140 127 85 139 49 60 46 140
Sunny days 15 18 17 14 15 15 12 12 22 25 22 21
Rainy days 16 10 14 16 16 15 19 19 8 6 8 10

Irmo - weather forecast by months

January February March April May June July August September October November December

Best time to visit Irmo:

The largest precipitation sum in Irmo is at

  • January — 148(mm)
  • April — 134(mm)
  • May — 140(mm)
  • August — 139(mm)
  • December — 140(mm)

Weather forecast in the closest to Irmo admin centers