May weather forecast
Dupo, IL

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Weather in May

May, the last month of the spring in Dupo, is a moderately hot month, with an average temperature fluctuating between 57.7°F (14.3°C) and 74.8°F (23.8°C).

Temperature

May's arrival coincides with a rise in the average high-temperature, moving from April's enjoyable 65.5°F (18.6°C) to a warm 74.8°F (23.8°C). During May, Dupo sees a mean low-temperature of 57.7°F (14.3°C).

Humidity

May and July, with an average relative humidity of 78%, are the most humid months.

Rainfall

The month with the most rainfall is May, when the rain falls for 17.4 days and typically aggregates up to 4.53" (115mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

The average length of the day in May is 14h and 17min.
On the first day of May, sunrise is at 6:02 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 5:38 am and sunset at 8:18 pm CDT.

Sunshine

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

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for average individuals.
Note: In May, the maximum UV index of 6 suggests these recommendations:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Updated: Jun 16, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in May?

The high-temperature during May is 74.8°F (23.8°C) and the low-temperature is 57.7°F (14.3°C).

What is the most humid month?

The months with the highest humidity are May and July, with an average relative humidity of 78%.

What is the average humidity in May?

The average relative humidity in May is 78%.

What is the rainiest month?

The month with the most rainfall is May, when the rain falls for 17.4 days and typically aggregates up to 4.53" (115mm) of precipitation.

How much does it rain in May?

In Dupo, in May, during 17.4 rainfall days, 4.53" (115mm) of precipitation is typically accumulated.

When it does not snow?

April through October are months without snowfall.

What is the average length of the day in May?

In Dupo, the average day length in May is 14h and 17min.

When is the sunrise / sunset in May?

In May, on the first day of the month, sunrise is at 6:02 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 5:38 am and sunset at 8:18 pm CDT.

How many hours of sunshine does Dupo have in May?

The average sunshine duration in May is 9.5h.

What are the months with the highest UV index?

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?

The average daily maximum UV index in May is 6. A UV Index reading of 6 to 7 represents a high hazard to health 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
Dupo, IL

Average temperature in May - Dupo, IL
  • Average high temperature in May: 74.8°F

The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (37.8°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 (24.6°F).

Average pressure in May
Dupo, IL

Average pressure in May - Dupo, 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).

Average wind speed in May
Dupo, IL

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

The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest month (with the lowest average wind speed) is July (5.5mph).

Average humidity in May
Dupo, IL

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

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

Average rainfall in May
Dupo, IL

Average rainfall in May - Dupo, IL
  • Average rainfall in May: 4.53"

The wettest month (with the highest rainfall) is May (4.53").
The driest month (with the least rainfall) is February (2.01").

Average rainfall days in May
Dupo, IL

Average rainfall days in May - Dupo, IL
  • Average rainfall days in May: 17.4 days

The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (7.7 days).

Average snowfall in May
Dupo, IL

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

The month with the highest snowfall is February (2.44").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in May
Dupo, IL

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

The month with the highest number of snowfall days is January (6.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - Dupo, 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 months with the most sunshine are June and July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).

Average sunshine days in May
Dupo, IL

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

The month with the most sunshine days is October (18.7 days).
The month with the least sunshine days is May (10.7 days).

Average UV index in May
Dupo, IL

Average UV index in May - Dupo, 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 and December (UV index 2).

Average cloud cover in May
Dupo, IL

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

The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 28).

Average visibility in May
Dupo, IL

Average visibility in May - Dupo, 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).

Dupo, Illinois, USA

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