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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 18°C (65°F), with a minimum dipping as low as 0°C (33°F) and a maximum reaching up to 33°C (92°F). Expect a total precipitation of 122 mm (4.8 in) spread over 13 days, accompanied by an average humidity of 78%. This blend of temperatures and moisture creates a unique climate experience for visitors and residents alike!

May Temperature in Madison

In May in Madison, the average temperature is 18°C (65°F). The maximum can reach 33°C (92°F) and the minimum can be as low as 0°C (33°F). Pack accordingly to enjoy a range of activities in comfortable temperatures.

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 18°C (65°F), with highs reaching up to 33°C (92°F) and lows dropping to around 0°C (33°F).
JanFebMarAprMayJunJulAugSepOctNovDec354046566573787570604539
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 122 mm (4.8 in) recorded over a span of 13 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 122 mm (4.8 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec619074112122125921391071098285
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 78%. With an average temperature of 18°C (65°F), this humidity feels like a warm, enveloping blanket, making travel quite muggy and potentially uncomfortable, as it can leave you feeling sticky and fatigued more quickly than usual.

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 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%86%86%84%78%79%70%59%68%80%87%85%
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 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, 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 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579111010108753
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 Weather2°C (36°F)61 mm (2.4 inches)86%moderate
February Weather5°C (41°F)90 mm (3.5 inches)86%moderate
March Weather8°C (46°F)74 mm (2.9 inches)86%high
April Weather13°C (56°F)112 mm (4.4 inches)84%very high
May Weather18°C (65°F)122 mm (4.8 inches)78%extreme
June Weather23°C (73°F)125 mm (4.9 inches)79%very high
July Weather26°C (79°F)92 mm (3.6 inches)70%very high
August Weather24°C (76°F)139 mm (5.5 inches)59%very high
September Weather21°C (70°F)107 mm (4.2 inches)68%very high
October Weather16°C (60°F)109 mm (4.3 inches)80%high
November Weather7°C (45°F)82 mm (3.2 inches)86%moderate
December Weather4°C (40°F)85 mm (3.4 inches)85%moderate

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