Madison (SD) monthly weather averages

Average daytime temperature

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

Madison average temperature chart (Celsius) Madison average temperature chart (Fahrenheit)
Average monthly temperatures in Madison (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C -5.7 -2.3 4.8 14.1 21 26.3 29.5 27.9 22.2 15.4 5.2 -3.4
°F 21.7 27.9 40.6 57.3 69.7 79.3 85 82.3 72 59.7 41.3 25.9

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.

Madison monthly rainfall chart (mm) Madison monthly rainfall chart (inches)
Average monthly rainfall in Madison (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 12 17 38 60 82 107 80 78 64 43 25 15
inches 0.5 0.7 1.5 2.3 3.2 4.2 3.1 3.1 2.5 1.7 1 0.6
Rainy days 7 7 9 10 11 11 10 9 8 6 6 7

Average annual rainfall in Madison: 565.6mm (222.7 inches)

Average daily sunshine

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

Madison average daily sunshine chart
Average daily sunshine Madison
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 6.2 6.9 7.8 8.7 10 11.4 12.1 10.8 8.8 7.3 5.3 5

Day / night temperatures

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

Madison average minimum / maximum temperatures (Celsius) Madison average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Madison (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -17.2 -13.6 -6.5 0.8 7.1 13 16 14.4 8.3 1.7 -5.9 -14.1
Max °C -5.5 -2 5.1 14.4 21.3 26.6 29.8 28.3 22.6 15.7 5.5 -3.2
Min °F 1.1 7.5 20.4 33.4 44.8 55.4 60.8 57.8 46.9 35.1 21.5 6.7
Max °F 11.7 18 30.7 45.7 57.6 67.6 73.2 70.3 59.7 47.7 31.6 16.5

Sea temperature

The graph below shows the average sea temperature.

Madison average sea temperature chart (Celsius) Madison average sea temperature chart (Fahrenheit)
Average sea temperature around Madison in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 7.5 7.3 7.7 8.6 10.1 12.2 14.7 17.5 16.4 13.2 10.3 8.4
°F 45.6 45.2 45.9 47.5 50.2 53.9 58.5 63.5 61.6 55.7 50.5 47.2

Wind speed

The graph below shows the average wind speed.

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

Madison relative humidity averages
Average relative humidity in Madison
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
72% 73% 72% 65% 64% 66% 66% 68% 70% 67% 73% 75%

Other monthly averages

UV index Best time to go?

Madison weather stats

Madison weather statistics
Hottest month: July 29.5°C 85.1°F
Driest month: January 12mm 0.5ins
Sunniest month: July 12.1hrs
Coldest month: January -5.7°C 21.7°F
Wettest month: June 107mm 4.2ins
Warmest sea: August 17.5°C 63.5°F
Map showing location of Madison (44.00608, -97.11395) Madison map pin © Google

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