Galena (IL) monthly weather averages

Contents

Average daytime temperature

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

Galena average temperature chart (Celsius) Galena average temperature chart (Fahrenheit)
Average monthly temperatures in Galena (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C -3.7 -0.6 6.3 14.7 21.1 26.3 28.5 27.1 22.6 16.4 7.5 -0.9
°F 25.4 30.9 43.3 58.4 70 79.3 83.2 80.8 72.7 61.4 45.4 30.3

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.

Galena monthly rainfall chart (mm) Galena monthly rainfall chart (inches)
Average monthly rainfall in Galena (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 31 31 63 87 98 109 101 111 103 66 62 46
inches 1.2 1.2 2.5 3.4 3.9 4.3 4 4.4 4.1 2.6 2.4 1.8
Rainy days 9 8 11 12 11 10 10 9 9 9 9 10

Average annual rainfall in Galena: 859.6mm (338.4 inches)

Average daily sunshine

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

Galena average daily sunshine chart
Average daily sunshine Galena
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 5.5 7.3 7.5 8.4 10.4 11.1 11 10.3 8.3 7.3 4.9 4.6

Day / night temperatures

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

Galena average minimum / maximum temperatures (Celsius) Galena average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Galena (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -13.6 -10.9 -4 2.7 8.6 13.4 16.3 14.8 10.3 4.2 -2.5 -9.9
Max °C -3.5 -0.4 6.6 15 21.4 26.6 28.8 27.4 22.9 16.7 7.7 -0.7
Min °F 7.6 12.5 24.9 36.8 47.5 56.1 61.3 58.6 50.5 39.5 27.5 14.2
Max °F 16.7 21.9 34.3 47.8 59 68 72.5 70 61.9 50.7 36.7 22.5

Sea temperature

The graph below shows the average sea temperature.

Galena average sea temperature chart (Celsius) Galena average sea temperature chart (Fahrenheit)
Average sea temperature around Galena in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 6.9 6.5 6.7 7.6 9.2 11.6 15.4 19.4 18 13.5 10.2 8.1
°F 44.4 43.6 44 45.6 48.5 52.9 59.8 67 64.3 56.2 50.4 46.6

Wind speed

The graph below shows the average wind speed.

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

Galena relative humidity averages
Average relative humidity in Galena
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
73% 72% 70% 65% 65% 67% 72% 74% 75% 70% 74% 77%

Other monthly averages

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Beta

Current (hourly) weather 15 day forecast

Galena weather stats

Galena weather statistics
Hottest month: July 28.5°C 83.3°F
Driest month: February 31mm 1.2ins
Sunniest month: August 10.3hrs
Coldest month: January -3.7°C 25.3°F
Wettest month: August 111mm 4.4ins
Warmest sea: August 19.4°C 66.9°F
Map showing location of Galena (42.41667, -90.42902) Galena map pin © Google

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