Irmo, South Carolina, United States Climate

Weather: 20.19°C/68.34°F, Wind SW at 3.6 km/h, 73% Humidity, 0% Chance of rain

United States
(Photo by bert brrr on Unsplash)
Contents

Irmo Climate Summary

Located at an elevation of 109.49 meters (359.22 feet) above sea level, Irmo has a Humid subtropical, no dry season climate (Classification: Cfa). The district’s yearly temperature is 20.05ºC (68.09ºF) and it is 7.41% higher than United States’s averages. Irmo typically receives about 42.43 millimeters (1.67 inches) of precipitation and has 44.19 rainy days (12.11% of the time) annually.

CountryUnited States
CitySouth Carolina
Longitude-81.1831513
Latitude34.0859829
Attitude/Elevation109.49m (359.22ft)
Local timeSaturday 16:26
Annual high temperature23.75ºC (74.75ºF)
Annual low temperature14.42ºC (57.96ºF)
Average annual precip.42.43mm (1.67in)
Warmest monthJuly (33.92ºC / 93.06ºF)
Coldest MonthJanuary (4.1ºC / 39.38ºF)
Wettest MonthAugust (60.41mm / 2.38in)
Driest MonthNovember (26.67mm / 1.05in)
Number of days with rainfall (≥ 1.0 mm)44.19 days (12.11%)
Days with no rain320.81 days (87.89%)
Humidity67.51%

Climate Irmo: Weather By Month

MonthJanFebMarAprMayJunJulAugSepNovOctDecYear
Record high °C (°F)22.0(71.6)27.0(80.6)28.0(82.4)31.0(87.8)38.0(100.4)39.0(102.2)39.0(102.2)38.0(100.4)38.0(100.4)36.0(96.8)26.0(78.8)24.0(75.2)39.0(102.2)
Average high °C (°F)12.34(54.21)16.55(61.79)18.31(64.96)22.81(73.06)28.82(83.88)32.12(89.82)33.92(93.06)33.09(91.56)30.71(87.28)25.52(77.94)17.22(63.0)13.55(56.39)23.75(74.75)
Daily mean °C (°F)8.88(47.98)13.13(55.63)14.59(58.26)18.83(65.89)25.0(77.0)28.27(82.89)30.04(86.07)29.15(84.47)26.98(80.56)21.66(70.99)13.7(56.66)10.43(50.77)20.05(68.09)
Average low °C (°F)4.1(39.38)8.15(46.67)9.14(48.45)12.37(54.27)18.37(65.07)21.58(70.84)23.53(74.35)23.22(73.8)21.6(70.88)16.11(61.0)8.78(47.8)6.14(43.05)14.42(57.96)
Record low °C (°F)-7.0(19.4)-2.0(28.4)-1.0(30.2)3.0(37.4)7.0(44.6)15.0(59.0)18.0(64.4)18.0(64.4)10.0(50.0)7.0(44.6)-2.0(28.4)-2.0(28.4)-7.0(19.4)
Average precipitation mm (inches)30.53(1.2)36.19(1.42)28.28(1.11)48.3(1.9)47.53(1.87)43.41(1.71)52.77(2.08)60.41(2.38)45.55(1.79)34.67(1.36)26.67(1.05)54.88(2.16)42.43(1.67)
Average precipitation days (≥ 1.0 mm)2.643.182.822.554.04.825.916.274.182.732.182.913.68
Average relative humidity (%)64.7672.6664.3964.3766.7566.0465.0568.6869.5169.1467.3771.4567.51
Mean monthly sunshine hours8.638.459.5110.4710.8210.8110.9210.610.459.929.148.59.85

Climate Graph

The chart below shows the mean monthly temperature and precipitation of Irmo in recent years.

Irmo

Irmo Temperature by Month

July
30.04°C | 86.07°F
August
29.15°C | 84.47°F
June
28.27°C | 82.89°F
September
26.98°C | 80.56°F
May
25.0°C | 77.0°F
October
21.66°C | 70.99°F
April
18.83°C | 65.89°F
March
14.59°C | 58.26°F
November
13.7°C | 56.66°F
February
13.13°C | 55.63°F
December
10.43°C | 50.77°F
January
8.88°C | 47.98°F

Historical Data

Summary
  • 2020
  • 2019
  • 2018
  • January
  • February
  • March
  • April
  • May
  • June
  • July
  • August
  • September
  • October
  • November
  • December
TemperatureMaxAverageMin
Max Temperature31.0°C (87.8°F)24.57°C (76.23°F)11.0°C (51.8°F)
Avg Temperature27.0°C (80.6°F)20.43°C (68.77°F)7.0°C (44.6°F)
Min Temperature20.0°C (68.0°F)13.8°C (56.84°F)3.0°C (37.4°F)
Dew PointMaxAverageMin
Dew Point19.0°C (66.2°F)11.27°C (52.29°F)-5.0°C (23.0°F)
PrecipitationMaxAverageMinSum
Precipitation33.0mm | 1.3in4.52mm | 0.18in0.0mm | 0in135.5mm | 5.33in
Snowdepth0.0mm | 0in0.0mm | 0in0.0mm | 0in0.0mm | 0in
WindMaxAverageMin
Wind23.0kmh | 14.29mph12.47kmh | 7.75mph4.0kmh | 2.49mph
Gust Wind37.0kmh | 22.99mph18.87kmh | 11.73mph6.0kmh | 3.73mph
Sea Level PressureMaxAverageMin
Sea Level Pressure33.0mb4.52mb0.0mb
Irmo

Daily Observations

TimeTemperatureDew PointHumidityWind SpeedPressurePrecipitation
April° C | ° F° C | ° F%Kph | MphHg | MbTotal (mm/in)
2019-04-0110 | 50.0-5 | 23.03617 | 10.5630.24 | 10240.0 | 0.0
2019-04-027 | 44.62 | 35.67113 | 8.0830.18 | 102233.0 | 1.3
2019-04-0317 | 62.63 | 37.4536 | 3.7330.33 | 10270.0 | 0.0
2019-04-0419 | 66.26 | 42.85310 | 6.2130.33 | 10270.0 | 0.0
2019-04-0518 | 64.414 | 57.28412 | 7.4630.12 | 102014.5 | 0.57
2019-04-0620 | 68.014 | 57.2796 | 3.7330.18 | 10220.0 | 0.0
2019-04-0719 | 66.217 | 62.6907 | 4.3530.18 | 10222.1 | 0.08
2019-04-0822 | 71.618 | 64.48410 | 6.2130.0 | 101611.7 | 0.46
2019-04-0922 | 71.617 | 62.6809 | 5.5929.77 | 10084.3 | 0.17
2019-04-1023 | 73.413 | 55.46411 | 6.8429.83 | 10105.1 | 0.2
2019-04-1123 | 73.415 | 59.07213 | 8.0830.0 | 10160.0 | 0.0
2019-04-1223 | 73.418 | 64.48315 | 9.3230.03 | 101710.2 | 0.4
2019-04-1324 | 75.219 | 66.28310 | 6.2130.03 | 101728.2 | 1.11
2019-04-1423 | 73.419 | 66.28322 | 13.6729.8 | 100911.4 | 0.45
2019-04-1517 | 62.66 | 42.85519 | 11.8129.91 | 10130.0 | 0.0
2019-04-1617 | 62.64 | 39.2489 | 5.5930.21 | 10230.0 | 0.0
2019-04-1722 | 71.610 | 50.05810 | 6.2130.12 | 10200.0 | 0.0
2019-04-1822 | 71.615 | 59.07315 | 9.3229.97 | 10151.3 | 0.05
2019-04-1921 | 69.817 | 62.68223 | 14.2929.65 | 100411.5 | 0.45
2019-04-2011 | 51.85 | 41.06821 | 13.0529.8 | 10090.9 | 0.04
2019-04-2116 | 60.86 | 42.8619 | 5.5930.06 | 10180.0 | 0.0
2019-04-2222 | 71.69 | 48.2544 | 2.4930.15 | 10210.0 | 0.0
2019-04-2325 | 77.012 | 53.6549 | 5.5930.06 | 10180.0 | 0.0
2019-04-2426 | 78.812 | 53.65313 | 8.0829.94 | 10140.0 | 0.0
2019-04-2525 | 77.014 | 57.25815 | 9.3229.91 | 10130.1 | 0.0
2019-04-2622 | 71.611 | 51.85721 | 13.0529.77 | 10080.3 | 0.01
2019-04-2721 | 69.85 | 41.04412 | 7.4629.97 | 10150.0 | 0.0
2019-04-2824 | 75.211 | 51.85115 | 9.3230.0 | 10160.8 | 0.03
2019-04-2925 | 77.015 | 59.0659 | 5.5930.21 | 10230.1 | 0.0
2019-04-3027 | 80.616 | 60.8659 | 5.5930.24 | 10240.0 | 0.0

Irmo 3 Year Historical Weather Data

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