Charles City (IA) monthly weather averages

Average daytime temperature

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

Charles City average temperature chart (Celsius) Charles City average temperature chart (Fahrenheit)
Average monthly temperatures in Charles City (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C -4.9 -1.7 5.2 14.3 21.5 26.7 28.6 27.5 22.7 16.2 6.3 -2.5
°F 23.1 28.9 41.3 57.8 70.8 80 83.6 81.5 72.9 61.2 43.4 27.5

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.

Charles City monthly rainfall chart (mm) Charles City monthly rainfall chart (inches)
Average monthly rainfall in Charles City (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 21 23 54 83 103 117 107 99 95 65 44 30
inches 0.8 0.9 2.1 3.3 4.1 4.6 4.2 3.9 3.7 2.6 1.7 1.2
Rainy days 8 7 10 11 11 11 10 9 10 8 8 9

Average annual rainfall in Charles City: 790.433mm (311.2 inches)

Average daily sunshine

The bar chart below shows the average daily sunshine hours in Charles City

Charles City average daily sunshine chart
Average daily sunshine Charles City
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 5.7 7 7.4 8.4 9.7 10.8 11.1 9.9 8.2 7 4.7 4.4

Day / night temperatures

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

Charles City average minimum / maximum temperatures (Celsius) Charles City average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Charles City (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -15.1 -11.9 -4.6 2.4 8.8 13.8 16.3 14.8 10 3.9 -3.4 -11.5
Max °C -4.7 -1.5 5.4 14.6 21.9 27 29 27.8 23.1 16.5 6.6 -2.3
Min °F 4.8 10.6 23.7 36.3 47.8 56.8 61.3 58.6 49.9 39 26 11.3
Max °F 14.2 19.9 32.7 47.3 59.5 68.7 72.7 70.3 61.7 50.4 34.9 19.6

Sea temperature

The graph below shows the average sea temperature.

Charles City average sea temperature chart (Celsius) Charles City average sea temperature chart (Fahrenheit)
Average sea temperature around Charles City in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 7.6 7.3 7.7 8.8 10.4 12.6 15.4 18.6 17.5 13.8 10.7 8.7
°F 45.6 45.1 45.9 47.8 50.8 54.7 59.7 65.4 63.5 56.9 51.2 47.6

Wind speed

The graph below shows the average wind speed.

Charles City average winspeed by month (km/h) Charles City average winspeed by month (mph)
Average wind speed in Charles City (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 21 21 22 23 20 18 16 16 17 19 20 20
mph 13 13 14 14 12 11 10 10 11 12 13 12

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.

Charles City relative humidity averages
Average relative humidity in Charles City
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
74% 74% 73% 66% 66% 68% 71% 74% 74% 70% 75% 78%

Other monthly averages

UV index Best time to go?

Charles City weather stats

Charles City weather statistics
Hottest month: July 28.6°C 83.5°F
Driest month: January 21mm 0.8ins
Sunniest month: July 11.1hrs
Coldest month: January -4.9°C 23.2°F
Wettest month: June 117mm 4.6ins
Warmest sea: August 18.6°C 65.5°F
Map showing location of Charles City (43.06636, -92.67241) Charles City map pin © Google

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