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 (Celsius) Columbia average temperature chart (Fahrenheit)
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.

Columbia monthly rainfall chart (mm) Columbia monthly rainfall chart (inches)
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 annual rainfall in Columbia: 919.767mm (362.1 inches)

Average daily sunshine

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

Columbia average daily sunshine chart
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.

Columbia average minimum / maximum temperatures (Celsius) Columbia average minimum / maximum temperatures (Fahrenheit)
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.

Columbia average sea temperature chart (Celsius) Columbia average sea temperature chart (Fahrenheit)
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.

Columbia average winspeed by month (km/h) Columbia average winspeed by month (mph)
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.

Columbia relative humidity averages
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

UV index Best time to go?

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) Columbia map pin © Google

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