Madison Temperatures: Averages by Month





The numbers here tell you how hot and cold the weather usually is in Madison, Wisconsin during each month of the year.

The average high and low temperatures are listed below monthly and annually for the city, in both degrees Fahrenheit and Celsius.

Maximums and minimums are only part of the temperature picture. To fill in the rest, there's information on how many days a month get above or below a given temperature.

To find out how often it rises over 60, 70 or 80 °F each month in Madison, scroll down farther. There are also monthly and yearly counts of days with cold weather.

The first set of high and low temperatures are averages for 2010 to 2019. Everything else here is based on 1991 to 2020 weather.

10-year temperature averages for Madison, 2010 to 2019
High °F Low °F   High °C Low °C
27 12 January -3 -11
30 14 February -1 -10
44 25 March 7 -4
57 36 April 14 2
70 48 May 21 9
79 58 June 26 15
84 63 July 29 17
81 60 August 27 16
74 52 September 23 11
61 41 October 16 5
45 28 November 7 -2
33 20 December 1 -7
57 38 Year 14 3
30-year temperature averages for Madison, 1991 to 2020
High °F Low °F   High °C Low °C
27 12 January -3 -11
31 15 February 0 -10
44 25 March 6 -4
57 36 April 14 2
69 47 May 21 8
79 57 June 26 14
82 62 July 28 16
80 60 August 27 15
73 51 September 23 11
60 40 October 15 4
45 29 November 7 -2
32 18 December 0 -8
57 38 Year 14 3

Days of Hot Weather in Madison

A hot day at Madison means highs in the 80s Fahrenheit. Just nine days a year on average reach into the 90s (above 32 °C). Twice a decade on average, the thermometer makes it to 100 degrees F (38 °C).

The 90-degree weather can show up during any of the summer months, while 80-degree temperatures appear periodically from April to October.

Days per month in Madison of at least 60, 70 or 80 °F
  70 °F
21 °C
80 °F
27 °C
90 °F
32 °C
January 0 0 0
February 0 0 0
March 1 0 0
April 5 1 0
May 15 5 0
June 26 15 2
July 30 21 4
August 30 18 2
September 20 8 1
October 6 1 0
November 1 0 0
December 0 0 0
Year 134 69 9

How Often Madison Has Cold Temperatures

Negative temperatures are not uncommon in Madison during winter. The city averages 16 nights a year that drop to 0 °F or lower.

Most winter days never warm up to above freezing. Days with frosty weather begin to show up in late fall and can linger until early spring. In total, Madison averages 59 days a year with a high of 32 °F (0 °C) or less.

Days per month on average in Madison when the minimum temperature drops to 0, 10, or 20 °F or below
  0 °F
-18 °C
10 °F
-12 °C
20 °F
-8 °C
January 7 14 21
February 5 10 17
March 1 3 10
April 0 0 1
May 0 0 0
June 0 0 0
July 0 0 0
August 0 0 0
September 0 0 0
October 0 0 0
November 0 1 6
December 3 8 17
Year 16 36 71
References

Jay Lawrimore, Ron Ray, Scott Applequist, Bryant Korzeniewski, Matthew Menne. 2016. Global Summary of the Month and Year, Version 1.0. NOAA National Centers for Environmental Information.

NOAA National Centers for Environmental Information (NCEI). Climate Normals.

Wisconsin Temperatures
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