May weather forecast and climate
Madison, WI

A view of the State Capitol building in Madison, Wisconsin, on a beautiful spring evening
A view of the State Capitol building in Madison, Wisconsin, on a beautiful spring evening

What is the temperature in May in Madison?

The average high-temperature, in May, in Madison, is 68.4°F (20.2°C), while the average low-temperature is 46°F (7.8°C).

How much does it rain in Madison in May?

In May, in Madison, Wisconsin, the rain falls for 11.9 days. Throughout May, 3.6" (90.2mm) of precipitation is accumulated.

What is the last month it snows in Madison?

May is the last month it regularly snows in Madison, Wisconsin. During 0.2 snowfall days, in May, Madison aggregates 0.2" (5.1mm) of snow.
Average temperature in May - Madison, WI
  • Average high temperature in May: 20.2°C

The warmest month (with the highest average high temperature) is July (27.6°C).
The month with the lowest average high temperature is January (-3.1°C).

  • Average low temperature in May: 7.8°C

The month with the highest average low temperature is July (16.1°C).
The coldest month (with the lowest average low temperature) is January (-11.6°C).

Average humidity in May - Madison, WI
  • Average humidity in May: 65.8%

The month with the highest relative humidity is December (78.5%).
The month with the lowest relative humidity is May (65.8%).

Average rainfall in May - Madison, WI
  • Average rainfall in May: 90.2mm

The wettest month (with the highest rainfall) is June (115.3mm).
The driest month (with the lowest rainfall) is January (31.2mm).

Average rainfall days in May - Madison, WI
  • Average rainfall days in May: 11.9 days

The month with the highest number of rainy days is April (12.1 days).
The month with the lowest number of rainy days is February (9.2 days).

Average snowfall in May - Madison, WI
  • Average snowfall in May: 5.1mm

The month with the highest snowfall is December (342.9mm).
Months with the lowest snowfall are June, July, August and September (0mm).

Average snowfall days in May - Madison, WI
  • Average snowfall days in May: 0.2 days

The month with the highest number of snowfall days is January (9.8 days).
Months with the lowest number of snowfall days are June, July, August and September (0 days).

Average daylight in May / Average sunshine in May - Madison, WI
  • Average daylight in May: 14.7h

The month with the longest days is June (Average daylight: 15.3h).
The month with shortest days is December (Average daylight: 9.1h).

  • Average sunshine in May: 8.5h

Months with most sunshine are June and July (Average sunshine: 9.8h).
The month with least sunshine is December (Average sunshine: 3.5h).

Average UV index in May - Madison, WI
  • Average UV index in May: 7

The month with the highest UV index is July (UV index 9).
Months with the lowest UV index are January and December (UV index 1).

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