Columbia (IL) monthly weather averages

  • Average daytime temperature

    The bar chart below shows the average monthly peak daytime temperatures at Columbia

    Columbia average temperature chart
    Average monthly temperatures in Columbia (degrees centigrade and fahrenheit)
      Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    °C 3.4 6.2 12.6 19.4 24.5 29.3 31.5 30.4 26.4 20.5 12.6 5.6
    °F 38.1 43.1 54.6 66.9 76 84.7 88.7 86.7 79.5 68.8 54.7 42

    Please note: these are the average peak daytime temperatures (usually around mid-afternoon) so do not show daytime / night highs and lows. To see the daily range of temperatures have a look at the temperature max / min chart below.

  • Average rainfall & rainy days

    The graph below shows the average rainfall and number of rainy days per month.

    Average monthly rainfall in Columbia (mm and inches)
      Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    mm 48 58 88 98 106 95 95 80 80 68 85 71
    inches 1.9 2.3 3.5 3.8 4.2 3.7 3.8 3.1 3.2 2.7 3.3 2.8
    Rainy days 9 9 11 11 10 9 8 8 8 8 10 10
  • Average daily sunshine

    The bar chart below shows the average daily sunshine hours in Columbia

    Average daily sunshine Columbia
      Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    Hrs sunshine 5.7 6.1 6.9 8.1 9.4 10.6 10.8 9.6 8.5 7.5 5.2 4.7
  • Day / night temperatures

    The graph below shows the daily range of temperatures for each month.

    Maximum and minimum daily temperatures in Columbia (degrees centigrade and fahrenheit)
      Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    Min °C -6.4 -4 1.6 7.6 12.7 17.9 20.2 18.8 14.8 8.3 2.6 -3.4
    Max °C 3.6 6.4 12.9 19.7 24.8 29.6 31.8 30.7 26.7 20.8 12.9 5.8
    Min °F 20.5 24.8 34.8 45.6 54.8 64.1 68.4 65.8 58.6 46.9 36.6 25.9
    Max °F 29.5 34.2 45 56.5 65.7 74.7 78.8 76.5 69.3 58.1 45.9 34.2
  • Sea temperature

    The graph below shows the average sea temperature.

    Average sea temperature around Columbia in degrees centigrade and fahrenheit
      Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    °C 10.3 9.8 10.4 11.8 14 16.6 19.7 22.6 21.2 17.1 13.9 11.7
    °F 50.5 49.7 50.7 53.2 57.1 61.9 67.5 72.7 70.2 62.8 56.9 53
  • Wind speed

    The graph below shows the average wind speed.

    Average wind speed in Columbia (mph and kmh)
      Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    km/h 18 18 20 19 16 15 14 13 14 16 17 18
    mph 11 11 13 12 10 9 9 8 9 10 11 11

    A monthly average windspeed of over 16km/h or 10mph suggests a location is fairly windy.

  • Relative humidity

    The graph below shows the average relative humidity.

    Average relative humidity in Columbia
    Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
    72% 72% 68% 64% 67% 67% 69% 70% 72% 69% 72% 75%

Other monthly averages

Columbia weather stats

Columbia weather statistics
Hottest month: July 31.5°C 88.7°F
Driest month: January 48mm 1.9ins
Sunniest month: July 10.8hrs
Coldest month: January 3.4°C 38.1°F
Wettest month: May 106mm 4.2ins
Warmest sea: August 22.6°C 72.7°F
Map showing location of Columbia (38.44366, -90.20122)

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