May weather forecast
Madison, WI

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The State Capitol building in Madison, Wisconsin, on a beautiful spring evening
The State Capitol building in Madison, Wisconsin, on a beautiful spring evening

Weather in May

May ushers in the early onset of summer in Madison. Seeing a striking jump, temperatures reach an impressive average high of 65.8°F (18.8°C). The city bids adieu to the last remnants of winter and celebrates with various outdoor festivals and events. Despite the increase in humidity, the climate remains pleasant with occasional rain showers. The greening of Madison's abundant parklands and scenic lake views offers delightful visuals, making it a popular time for recreational pursuits.

Temperature

May comes with an increase, with the average high-temperature moving from a fresh 53.8°F (12.1°C) in April to an enjoyable 65.8°F (18.8°C). Throughout the month of May, Madison expects an average low of 48.7°F (9.3°C).

Humidity

In May, the average relative humidity is 80%.

Rainfall

In May, in Madison, the rain falls for 6.6 days. Throughout May, 0.59" (15mm) of precipitation is accumulated. Throughout the year, there are 50.2 rainfall days, and 4.76" (121mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall in Madison.

Daylight

In May, the average length of the day in Madison, Wisconsin, is 14h and 41min.
On the first day of May in Madison, sunrise is at 5:49 am and sunset at 7:59 pm. On the last day of the month, sunrise is at 5:20 am and sunset at 8:29 pm CDT.

Sunshine

The average sunshine in May in Madison is 8.3h.

UV index

The average daily maximum UV index in May in Madison is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: A maximum high daily UV index of 5 during May translates into the following directions:
Ensure safety - Imperative it is to shield skin and eyes from damage. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Updated: Feb 14, 2024 | Published by: Weather U.S. | About Us / Weather Forecasting / Data Sources

Frequently asked questions

What is the average May temperature in Madison?

In May, in Madison, the average high-temperature is 65.8°F (18.8°C), and the average low-temperature is 48.7°F (9.3°C).

What is the average humidity in May in Madison?

The average relative humidity in May in Madison is 80%.

How many days does it rain in May in Madison?

In Madison, during May, the rain falls for 6.6 days and regularly aggregates up to 0.59" (15mm) of precipitation.

When it does not snow in Madison?

May through September are months without snowfall.

Does it snow in Madison in May?

In May, in Madison, it doesn't snow. April is the latest month when it typically snows.

What is the average length of the day in May in Madison?

In Madison, the average day length in May is 14h and 41min.

When are sunrise and sunset in May in Madison?

In May, on the first day of the month, sunrise is at 5:49 am and sunset at 7:59 pm. On the last day of the month, sunrise is at 5:20 am and sunset at 8:29 pm CDT.

How many hours of sunshine does Madison have in May?

The average sunshine duration in May in Madison is 8.3h.

What is the UV index reading in May in Madison?

In Madison, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a medium hazard to health from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Madison, WI

Average temperature in May - Madison, WI
  • Average high temperature in May: 65.8°F

The warmest month (with the highest average high temperature) is July (78.6°F).
The month with the lowest average high temperature is January (23.9°F).

  • Average low temperature in May: 48.7°F

The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).

Average pressure in May
Madison, WI

Average pressure in May - Madison, WI
  • Average pressure in May: 29.96"Hg

The months with the highest atmospheric pressure are January and February (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in May
Madison, WI

Average wind speed in May - Madison, WI
  • Average wind speed in May: 8.7mph

The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).

Average humidity in May
Madison, WI

Average humidity in May - Madison, WI
  • Average humidity in May: 80%

The months with the highest relative humidity are January and February (88%).
The months with the lowest relative humidity are April and October (77%).

Average rainfall in May
Madison, WI

Average rainfall in May - Madison, WI
  • Average rainfall in May: 0.59"

The wettest month (with the highest rainfall) is July (0.63").
The driest months (with the least rainfall) are January, March, November and December (0.24").

Average rainfall days in May
Madison, WI

Average rainfall days in May - Madison, WI
  • Average rainfall days in May: 6.6 days

The month with the highest number of rainy days is June (6.7 days).
The month with the least rainy days is January (1.1 days).

Average snowfall in May
Madison, WI

Average snowfall in May - Madison, WI
  • Average snowfall in May: 0"

The month with the highest snowfall is February (0.94").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in May
Madison, WI

Average snowfall days in May - Madison, WI
  • Average snowfall days in May: 0.3 days

The month with the highest number of snowfall days is January (5.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
Madison, WI

Average daylight in May / Average sunshine in May - Madison, WI
  • Average daylight in May: 14h and 4min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in May: 8h and 2min

The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).

Average sunshine days in May
Madison, WI

Average sunshine days in May - Madison, WI
  • Average sunshine days in May: 21.2 days

The month with the most sunshine days is December (27 days).
The month with the least sunshine days is June (19.8 days).

Average UV index in May
Madison, WI

Average UV index in May - Madison, WI
  • Average UV index in May: 5

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, November and December (UV index 1).

Average cloud cover in May
Madison, WI

Average cloud cover in May - Madison, WI
  • Average cloud cover in May: 44

The month with the most cloud cover is January (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 34).

Average visibility in May
Madison, WI

Average visibility in May - Madison, WI
  • Average visibility in May: 6mi

The months with the highest visibility are February, March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, July, August and September (5mi).

Madison, Wisconsin, USA

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