May weather forecast
Perry, IL

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Weather in May

The last month of the spring, May, is a pleasant month in Perry, Illinois, with an average temperature ranging between min 55.8°F (13.2°C) and max 72.3°F (22.4°C).

Temperature

The start of May signals a slight increase in the average high-temperature, moving from an enjoyable 63.5°F (17.5°C) in April to an agreeable 72.3°F (22.4°C). Perry, in the month of May, anticipates a consistent average low-temperature of 55.8°F (13.2°C).

Humidity

In Perry, Illinois, the average relative humidity in May is 80%.

Rainfall

The month with the most rainfall in Perry is May, when the rain falls for 16.8 days and typically aggregates up to 2.44" (62mm) of precipitation.

Snowfall

In Perry, snow does not fall in May through October.

Daylight

In Perry, the average length of the day in May is 14h and 23min.
On the first day of the month, sunrise is at 6:02 am and sunset at 7:57 pm. On the last day of May, sunrise is at 5:36 am and sunset at 8:24 pm CDT.

Sunshine

In Perry, the average sunshine in May is 9.2h.

UV index

The average daily maximum UV index in May in Perry is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: A daily high UV index of 5 in May leads to these guidelines:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. During bright days, sunglasses that offer UVA and UVB defense are recommended.
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Frequently asked questions

What is the average May temperature in Perry?

May temperatures in Perry, Illinois, vary between a high-temperature of 72.3°F (22.4°C) and a low-temperature of 55.8°F (13.2°C).

What is the average humidity in May in Perry?

The average relative humidity in May in Perry, Illinois, is 80%.

What is the rainiest month in Perry?

May is the month with the most rainfall in Perry, Illinois. Rain falls for 16.8 days and accumulates 2.44" (62mm) of precipitation.

How much does it rain in Perry in May?

In May, in Perry, the rain falls for 16.8 days. Throughout May, 2.44" (62mm) of precipitation is accumulated.

When it does not snow in Perry?

In Perry, snow does not fall in May through October.

Does it snow in Perry in May?

In May, it doesn't snow. April is the latest month when it typically snows.

How many hours of daylight does Perry have in May?

The average day length in May is 14h and 23min.

When is the sunrise / sunset in May in Perry?

On the first day of May, sunrise is at 6:02 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 5:36 am and sunset at 8:24 pm CDT.

How long on average sun shines in May in Perry?

In May, the average sunshine duration in Perry is 9.2h.

What is the UV index reading in May in Perry?

In Perry, Illinois, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health from unprotected exposure to 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
Perry, IL

Average temperature in May - Perry, IL
  • Average high temperature in May: 72.3°F

The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (33.8°F).

  • Average low temperature in May: 55.8°F

The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

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Average pressure in May
Perry, IL

Average pressure in May - Perry, IL
  • Average pressure in May: 29.95"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in May
Perry, IL

Average wind speed in May - Perry, IL
  • Average wind speed in May: 7.9mph

The windiest months (with the highest average wind speed) are January, February and April (9.8mph).
The calmest month (with the lowest average wind speed) is July (6mph).

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Average humidity in May
Perry, IL

Average humidity in May - Perry, IL
  • Average humidity in May: 80%

The months with the highest relative humidity are June and July (81%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in May
Perry, IL

Average rainfall in May - Perry, IL
  • Average rainfall in May: 2.44"

The wettest month (with the highest rainfall) is May (2.44").
The driest month (with the least rainfall) is February (0.75").

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Average rainfall days in May
Perry, IL

Average rainfall days in May - Perry, IL
  • Average rainfall days in May: 16.8 days

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (4.5 days).

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Average snowfall in May
Perry, IL

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

The month with the highest snowfall is January (2.05").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in May
Perry, IL

Average snowfall days in May - Perry, 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
Perry, IL

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

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in May: 9h and 1min

The months with the most sunshine are June and July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).

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Average sunshine days in May
Perry, IL

Average sunshine days in May - Perry, IL
  • Average sunshine days in May: 12.9 days

The month with the most sunshine days is December (20.7 days).
The month with the least sunshine days is June (12.3 days).

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Average UV index in May
Perry, IL

Average UV index in May - Perry, IL
  • Average UV index in May: 5

The months with the highest UV index are 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
Perry, IL

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

The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are June, July, August and September (Cloud cover 29).

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Average visibility in May
Perry, IL

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

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