Rockwell City (IA) monthly weather averages

Contents

Average daytime temperature

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

Rockwell City average temperature chart (Celsius) Rockwell City average temperature chart (Fahrenheit)
Average monthly temperatures in Rockwell City (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C -3.3 -0.1 6.9 15.7 22.6 27.7 29.6 28 23.7 17.3 7.4 -1.2
°F 26.1 31.9 44.4 60.2 72.7 81.9 85.3 82.4 74.7 63.1 45.4 29.9

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.

Rockwell City monthly rainfall chart (mm) Rockwell City monthly rainfall chart (inches)
Average monthly rainfall in Rockwell City (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 18 20 50 73 104 118 107 100 90 58 35 24
inches 0.7 0.8 2 2.9 4.1 4.6 4.2 3.9 3.5 2.3 1.4 0.9
Rainy days 7 7 10 11 12 11 10 9 9 8 7 8

Average annual rainfall in Rockwell City: 743.934mm (292.9 inches)

Average daily sunshine

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

Rockwell City average daily sunshine chart
Average daily sunshine Rockwell City
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 5.8 6.5 7.3 8.2 9.5 11.1 11.6 10.2 8.5 7.2 5 4.7

Day / night temperatures

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

Rockwell City average minimum / maximum temperatures (Celsius) Rockwell City average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Rockwell City (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -13.8 -10.8 -4 2.8 9.5 14.8 17.1 15.5 10.8 4.4 -2.9 -10.9
Max °C -3 0.2 7.2 16 23 28.1 29.9 28.3 24.1 17.6 7.7 -1
Min °F 7.2 12.6 24.9 37 49 58.6 62.8 59.9 51.4 39.9 26.8 12.5
Max °F 16.9 22.5 34.9 48.9 61.2 70.5 74.3 71.4 63.3 51.8 36.3 21.4

Sea temperature

The graph below shows the average sea temperature.

Rockwell City average sea temperature chart (Celsius) Rockwell City average sea temperature chart (Fahrenheit)
Average sea temperature around Rockwell City in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 8.6 8.3 8.8 9.9 11.6 13.9 16.5 19.3 18.1 14.6 11.6 9.6
°F 47.4 47 47.8 49.9 52.9 57 61.7 66.7 64.6 58.4 52.9 49.3

Wind speed

The graph below shows the average wind speed.

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

Rockwell City relative humidity averages
Average relative humidity in Rockwell City
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
72% 72% 69% 63% 63% 66% 69% 71% 72% 68% 72% 76%

Other monthly averages

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Rockwell City weather stats

Rockwell City weather statistics
Hottest month: July 29.6°C 85.3°F
Driest month: January 18mm 0.7ins
Sunniest month: July 11.6hrs
Coldest month: January -3.3°C 26.1°F
Wettest month: June 118mm 4.6ins
Warmest sea: August 19.3°C 66.7°F
Map showing location of Rockwell City (42.39526, -94.63387) Rockwell City map pin © Google

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