May weather forecast
Smithton, IL

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Weather in May

The last month of the spring, May, is a moderately hot month in Smithton, Illinois, with an average temperature varying between 75°F (23.9°C) and 57.9°F (14.4°C).

Temperature

May's arrival sees a rise in the average high-temperature, jumping from April's comfortable 65.5°F (18.6°C) to a warm 75°F (23.9°C). The month of May records an average low-temperature of 57.9°F (14.4°C) in Smithton.

Humidity

May and July, with an average relative humidity of 79%, are the most humid months in Smithton.

Rainfall

The month with the most rainfall is May, when the rain falls for 12.1 days and typically aggregates up to 1.34" (34mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

In May, the average length of the day is 14h and 17min.
On the first day of the month, sunrise is at 6:01 am and sunset at 7:52 pm. On the last day of May, in Smithton, sunrise is at 5:37 am and sunset at 8:17 pm CDT.

Sunshine

In May, the average sunshine is 9.3h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum UV index, 6 during May, leads to the following recommendations:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
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Frequently asked questions

What are the temperatures in Smithton in May?

Smithton in May has an average high-temperature of 75°F (23.9°C) and an average low-temperature of 57.9°F (14.4°C).

What are the most humid months in Smithton?

May and July, with an average relative humidity of 79%, are most humid months in Smithton, Illinois.

What is the average humidity in May in Smithton?

In May, the average relative humidity in Smithton is 79%.

What is the rainiest month in Smithton?

May is the month with the most rainfall in Smithton, Illinois. Rain falls for 12.1 days and accumulates 1.34" (34mm) of precipitation.

How much does it rain in Smithton in May?

In Smithton, in May, during 12.1 rainfall days, 1.34" (34mm) of precipitation is typically accumulated.

When it does not snow in Smithton?

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

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

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

When is the sunrise / sunset in May in Smithton?

In May, on the first day of the month, sunrise is at 6:01 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 5:37 am and sunset at 8:17 pm CDT.

How long on average sun shines in May in Smithton?

The average sunshine duration in May in Smithton, Illinois, is 9.3h.

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

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

What is the UV index intensity in May in Smithton?

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

Average temperature in May - Smithton, IL
  • Average high temperature in May: 75°F

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (38.1°F).

  • Average low temperature in May: 57.9°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 (25°F).

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Average pressure in May
Smithton, IL

Average pressure in May - Smithton, 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 (29.93"Hg).

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Average wind speed in May
Smithton, IL

Average wind speed in May - Smithton, IL
  • Average wind speed in May: 7.4mph

The windiest month (with the highest average wind speed) is January (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (5.6mph).

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Average humidity in May
Smithton, IL

Average humidity in May - Smithton, IL
  • Average humidity in May: 79%

The months with the highest relative humidity are May and July (79%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in May
Smithton, IL

Average rainfall in May - Smithton, IL
  • Average rainfall in May: 1.34"

The wettest month (with the highest rainfall) is May (1.34").
The driest month (with the least rainfall) is September (0.47").

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Average rainfall days in May
Smithton, IL

Average rainfall days in May - Smithton, IL
  • Average rainfall days in May: 12.1 days

The month with the highest number of rainy days is July (12.2 days).
The month with the least rainy days is December (5.3 days).

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Average snowfall in May
Smithton, IL

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

The month with the highest snowfall is January (0.63").
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
Smithton, IL

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

The month with the highest number of snowfall days is January (4.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

Average daylight in May / Average sunshine in May - Smithton, 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 2min

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).

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Average sunshine days in May
Smithton, IL

Average sunshine days in May - Smithton, IL
  • Average sunshine days in May: 16.1 days

The month with the most sunshine days is January (23.3 days).
The month with the least sunshine days is July (15.1 days).

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Average UV index in May
Smithton, IL

Average UV index in May - Smithton, 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).

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Average cloud cover in May
Smithton, IL

Average cloud cover in May - Smithton, IL
  • Average cloud cover in May: 38

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

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Average visibility in May
Smithton, IL

Average visibility in May - Smithton, 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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Smithton, Illinois, USA

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