Effingham (IL) monthly weather averages

Contents

Average daytime temperature

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

Effingham average temperature chart (Celsius) Effingham average temperature chart (Fahrenheit)
Average monthly temperatures in Effingham (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 1.7 4.5 11.2 18.3 23.7 28.6 30.5 29.4 26 19.6 11.7 4.4
°F 35 40 52.2 64.9 74.7 83.5 86.8 84.8 78.9 67.3 53 39.9

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.

Effingham monthly rainfall chart (mm) Effingham monthly rainfall chart (inches)
Average monthly rainfall in Effingham (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 54 55 92 100 102 95 100 75 82 71 92 85
inches 2.1 2.2 3.6 3.9 4 3.7 3.9 3 3.2 2.8 3.6 3.3
Rainy days 10 9 12 12 10 9 9 8 8 8 10 11

Average annual rainfall in Effingham: 952.4mm (375 inches)

Average daily sunshine

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

Effingham average daily sunshine chart
Average daily sunshine Effingham
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 5.3 5.9 6.7 8.1 9.6 11 11 10.1 8.8 7.5 5 4.5

Day / night temperatures

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

Effingham average minimum / maximum temperatures (Celsius) Effingham average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Effingham (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -7.9 -5.7 0.3 6.3 11.6 16.5 18.7 17.4 13.5 7.1 1.5 -4.6
Max °C 1.9 4.7 11.5 18.6 24 28.9 30.8 29.7 26.4 19.9 11.9 4.6
Min °F 17.8 21.7 32.5 43.3 52.9 61.7 65.6 63.2 56.2 44.8 34.7 23.7
Max °F 26.6 31.1 42.6 54.3 64 72.9 76.5 74.3 67.8 56.3 44.1 32

Sea temperature

The graph below shows the average sea temperature.

Effingham average sea temperature chart (Celsius) Effingham average sea temperature chart (Fahrenheit)
Average sea temperature around Effingham in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 8.6 8 8.3 9.5 11.8 15.3 19.6 22.4 20.8 16.2 12.6 10.1
°F 47.5 46.4 46.9 49.1 53.2 59.6 67.2 72.3 69.4 61.2 54.6 50.2

Wind speed

The graph below shows the average wind speed.

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

Effingham relative humidity averages
Average relative humidity in Effingham
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
73% 73% 69% 65% 67% 67% 70% 73% 72% 69% 73% 76%

Other monthly averages

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Beta

Current (hourly) weather 15 day forecast

Effingham weather stats

Effingham weather statistics
Hottest month: July 30.5°C 86.9°F
Driest month: January 54mm 2.1ins
Sunniest month: July 11hrs
Coldest month: January 1.7°C 35.1°F
Wettest month: May 102mm 4ins
Warmest sea: August 22.4°C 72.3°F
Map showing location of Effingham (39.12004, -88.54338) Effingham map pin © Google

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