Des Moines (IA) monthly weather averages

Contents

Average daytime temperature

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

Des Moines average temperature chart (Celsius) Des Moines average temperature chart (Fahrenheit)
Average monthly temperatures in Des Moines (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C -2.3 0.8 8.1 16.4 22.5 27.6 30.1 28.7 24 17.7 8.7 0.1
°F 27.9 33.4 46.6 61.4 72.5 81.7 86.2 83.6 75.2 63.9 47.7 32.1

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.

Des Moines monthly rainfall chart (mm) Des Moines monthly rainfall chart (inches)
Average monthly rainfall in Des Moines (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 24 28 58 87 98 115 100 105 91 66 46 33
inches 1 1.1 2.3 3.4 3.9 4.5 3.9 4.1 3.6 2.6 1.8 1.3
Rainy days 8 7 10 11 12 10 10 9 9 8 8 9

Average annual rainfall in Des Moines: 798.3mm (314.3 inches)

Average daily sunshine

The bar chart below shows the average daily sunshine hours in Des Moines

Des Moines average daily sunshine chart
Average daily sunshine Des Moines
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 5.7 6.4 7.2 8 9.5 11.1 11.6 10.3 8.6 7.4 5.1 4.7

Day / night temperatures

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

Des Moines average minimum / maximum temperatures (Celsius) Des Moines average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Des Moines (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -12.2 -9.5 -2.6 4.2 10.4 15.7 18.6 16.9 11.9 5.4 -1.6 -9.1
Max °C -2.1 1.1 8.4 16.7 22.8 27.9 30.4 29 24.3 18.1 9 0.3
Min °F 10.1 15 27.3 39.5 50.7 60.3 65.5 62.3 53.4 41.6 29.2 15.6
Max °F 19.2 24.4 37.2 50.7 61.9 71.2 76.1 73.2 64.6 53.1 38.7 24.1

Sea temperature

The graph below shows the average sea temperature.

Des Moines average sea temperature chart (Celsius) Des Moines average sea temperature chart (Fahrenheit)
Average sea temperature around Des Moines in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 9.1 8.8 9.4 10.6 12.4 14.7 17.3 20 18.9 15.4 12.3 10.3
°F 48.4 47.9 48.8 51 54.3 58.5 63.2 68.1 66 59.7 54.2 50.5

Wind speed

The graph below shows the average wind speed.

Des Moines average winspeed by month (km/h) Des Moines average winspeed by month (mph)
Average wind speed in Des Moines (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 19 19 21 21 18 17 15 15 16 17 19 19
mph 12 12 13 13 11 11 9 9 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.

Des Moines relative humidity averages
Average relative humidity in Des Moines
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
71% 71% 69% 63% 64% 66% 68% 70% 71% 67% 71% 75%

Other monthly averages

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Beta

Current (hourly) weather 15 day forecast

Des Moines weather stats

Des Moines weather statistics
Hottest month: July 30.1°C 86.2°F
Driest month: January 24mm 0.9ins
Sunniest month: July 11.6hrs
Coldest month: January -2.3°C 27.9°F
Wettest month: June 115mm 4.5ins
Warmest sea: August 20°C 68°F
Map showing location of Des Moines (41.60054, -93.60911) Des Moines map pin © Google

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