May weather forecast
Madison, IL

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Weather in May

May, the last month of the spring in Madison, is a warm month, with temperature in the range of an average high of 74.7°F (23.7°C) and an average low of 57.7°F (14.3°C).

Temperature

May's arrival brings a change in high-temperatures, moving from an enjoyable 65.1°F (18.4°C) in April to a moderately hot 74.7°F (23.7°C). During the month of May, the temperature generally drops to a low average of 57.7°F (14.3°C).

Humidity

The most humid month in Madison, Illinois, is May, with an average relative humidity of 78%.

Rainfall

The month with the most rainfall is May, when the rain falls for 17.8 days and typically aggregates up to 4.21" (107mm) of precipitation.

Snowfall

In Madison, Illinois, snow does not fall in April through October.

Daylight

In Madison, Illinois, the average length of the day in May is 14h and 18min.
On the first day of the month, sunrise is at 6:02 am and sunset at 7:53 pm. On the last day of May, in Madison, sunrise is at 5:37 am and sunset at 8:19 pm CDT.

Sunshine

In May, the average sunshine in Madison is 9.5h.

UV index

The months with the highest UV index in Madison are May through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for average individuals.
Note: A maximum high UV index of 6 in May translates into the following recommendations:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
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Frequently asked questions

What are the temperatures in Madison in May?

The average high-temperature, in May, in Madison, is 74.7°F (23.7°C), while the average low-temperature is 57.7°F (14.3°C).

What is the most humid month in Madison?

The most humid month in Madison, Illinois, is May, with an average relative humidity of 78%.

What is the average humidity in May in Madison?

In Madison, Illinois, the average relative humidity in May is 78%.

What is the wettest month in Madison?

May is the month with the most rainfall in Madison, Illinois. Rain falls for 17.8 days and accumulates 4.21" (107mm) of precipitation.

How much does it rain in Madison in May?

In Madison, during May, the rain falls for 17.8 days and regularly aggregates up to 4.21" (107mm) of precipitation.

When it does not snow in Madison?

In Madison, snow does not fall in April through October.

How many hours of daylight does Madison have in May?

The average day length in May is 14h and 18min.

When is the sunrise / sunset in May in Madison?

On the first day of May in Madison, sunrise is at 6:02 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 5:37 am and sunset at 8:19 pm CDT.

How long on average sun shines in May in Madison?

The average sunshine duration in May in Madison is 9.5h.

What is the month with the highest UV index in Madison?

May through August, with an average maximum UV index of 6, are months with the highest UV index.

What is the UV index reading in May in Madison?

In May, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's 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, IL

Average temperature in May - Madison, IL
  • Average high temperature in May: 74.7°F

The warmest month (with the highest average high temperature) is July (86.2°F).
The month with the lowest average high temperature is January (37.2°F).

  • Average low temperature in May: 57.7°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

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Average pressure in May
Madison, IL

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

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in May
Madison, IL

Average wind speed in May - Madison, IL
  • Average wind speed in May: 7.3mph

The windiest month (with the highest average wind speed) is January (9.4mph).
The calmest month (with the lowest average wind speed) is July (5.5mph).

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Average humidity in May
Madison, IL

Average humidity in May - Madison, IL
  • Average humidity in May: 78%

The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in May
Madison, IL

Average rainfall in May - Madison, IL
  • Average rainfall in May: 4.21"

The wettest month (with the highest rainfall) is May (4.21").
The driest month (with the least rainfall) is February (1.93").

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Average rainfall days in May
Madison, IL

Average rainfall days in May - Madison, IL
  • Average rainfall days in May: 17.8 days

The months with the highest number of rainy days are May and July (17.8 days).
The month with the least rainy days is January (8.4 days).

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Average snowfall in May
Madison, IL

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

The month with the highest snowfall is February (2.4").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in May
Madison, IL

Average snowfall days in May - Madison, IL
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (6.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - Madison, IL
  • Average daylight in May: 14h and 2min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in May: 9h and 3min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).

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Average sunshine days in May
Madison, IL

Average sunshine days in May - Madison, IL
  • Average sunshine days in May: 10.7 days

The month with the most sunshine days is December (18 days).
The month with the least sunshine days is June (10.1 days).

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Average UV index in May
Madison, IL

Average UV index in May - Madison, IL
  • Average UV index in May: 6

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in May
Madison, IL

Average cloud cover in May - Madison, IL
  • Average cloud cover in May: 37

The month with the most cloud cover is January (Cloud cover 50).
The months with the least cloud cover are June and August (Cloud cover 28).

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Average visibility in May
Madison, IL

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

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

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Madison, Illinois, USA

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