Monthly weather forecast and Climate
Madison, WI US

Warmest month (with highest average high temperature) is July (81.6°F).
Month with lowest average high temperature is January (26.4°F).

Month with highest average low temperature is July (61°F).
Coldest month (with lowest average low temperature) is January (11.1°F).

Month with highest relative humidity is December (78.5%).
Month with lowest relative humidity is May (65.8%).

Wettest month (with highest rainfall) is June (4.5").
Driest month (with lowest rainfall) is January (1.2").

Month with highest number of rainy days is April (12.1 days).
Month with lowest number of rainy days is February (9.2 days).

Month with highest snowfall is December (13.5").
Months with lowest snowfall are June, July, August and September (0").

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

Months with longest days are May, June and July (Average daylight: 15).
Months with shortest days are January and December (Average daylight: 9).

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

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