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May Weather in Madison, United States

Last updated: June 24, 2025

In Madison, United States, the average temperature in May hovers around 22°C (71°F). However, you can expect temperatures to range from a chilly 5°C (41°F) to a sweltering 34°C (93°F). The weather tends to be quite wet, with 99 mm (3.9 in) of precipitation spread across 11 days. Additionally, the average humidity is a high 83%, making for a warm and muggy atmosphere.

May Temperature in Madison

In May in Madison, the average temperature is 22°C (71°F), with maximums reaching up to 34°C (93°F) and minimums dropping as low as 5°C (41°F). Be prepared for a wide range of temperatures, making it essential to pack both light clothing and warmer layers for your trip.

May Weather in Madison: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Madison, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Madison, May typically has an average temperature of 22°C (71°F), with highs reaching up to 34°C (93°F) and lows dropping to around 5°C (41°F).
JanFebMarAprMayJunJulAugSepOctNovDec434855617177807975655047
Data source: Temperature data for Madison generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in Madison

In Madison, in May, the precipitation amount is 99 mm (3.9 in) over the course of 11 days.

May Precipitation Trends in Madison

The chart displays monthly precipitation patterns in Madison, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Madison, May typically receives around 99 mm (3.9 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec11217819614510013812411811511978153
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Madison

In Madison in May humidity is 83%. With an average temperature of 22°C (71°F), this humidity feels like a warm blanket wrapping around you, making travel a bit sticky but still enjoyable, as long as you stay hydrated and take breaks in the shade.

May Average Humidity in Madison

This chart illustrates the average monthly humidity levels in Madison, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Madison is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%87%85%82%83%82%78%67%64%75%87%89%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Madison

In Madison in May, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Madison.

Maximum UV Index Levels in Madison for May

The chart shows the monthly maximum UV Index (UVI) for Madison in May, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In May, the maximum UV index in Madison typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec46810101111109754
Data source: Madison May UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How May Weather in Madison Compares to Other Months

Weather in Madison varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Madison, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Madison, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (44°F)111 mm (4.4 inches)87%moderate
February Weather9°C (49°F)178 mm (7.0 inches)87%high
March Weather13°C (56°F)196 mm (7.7 inches)85%very high
April Weather16°C (61°F)145 mm (5.7 inches)82%very high
May Weather22°C (71°F)99 mm (3.9 inches)83%very high
June Weather25°C (77°F)138 mm (5.4 inches)82%extreme
July Weather27°C (81°F)124 mm (4.9 inches)78%extreme
August Weather26°C (80°F)117 mm (4.6 inches)67%very high
September Weather24°C (75°F)115 mm (4.5 inches)64%very high
October Weather18°C (65°F)119 mm (4.7 inches)74%high
November Weather10°C (51°F)78 mm (3.1 inches)87%moderate
December Weather8°C (47°F)153 mm (6.0 inches)88%moderate

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