May weather forecast
Holiday Hills, IL

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Weather in May

The last month of the spring, May, is a refreshing month in Holiday Hills, Illinois, with temperature in the range of an average low of 49.3°F (9.6°C) and an average high of 66.4°F (19.1°C).

Temperature

As Holiday Hills transitions into May, the average high-temperature is observed to rise from a fresh 54.3°F (12.4°C) in April to a comfortable 66.4°F (19.1°C). During May nights, Holiday Hills witnesses a consistent average temperature of 49.3°F (9.6°C).

Humidity

In May, the average relative humidity is 79%.

Rainfall

In Holiday Hills, in May, during 17.8 rainfall days, 3.39" (86mm) of precipitation is typically accumulated. Throughout the year, in Holiday Hills, there are 152.4 rainfall days, and 28.07" (713mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. May is the last month it regularly snows in Holiday Hills. During 0.1 snowfall days, in May, Holiday Hills aggregates 0.08" (2mm) of snow. Throughout the year, there are 49 snowfall days, and 16.5" (419mm) of snow is accumulated.

Daylight

In Holiday Hills, the average length of the day in May is 14h and 37min.
On the first day of the month, sunrise is at 5:47 am and sunset at 7:52 pm. On the last day of May, sunrise is at 5:18 am and sunset at 8:22 pm CDT.

Sunshine

In May, the average sunshine is 8.5h.

UV index

In Holiday Hills, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: During May, 5 as the daily maximum UV index converts into the following advice:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
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Frequently asked questions

What is the average May temperature in Holiday Hills?

The high-temperature, in May, in Holiday Hills, records 66.4°F (19.1°C), while the low-temperature is 49.3°F (9.6°C).

What is the average humidity in May in Holiday Hills?

The average relative humidity in May in Holiday Hills is 79%.

How many days does it rain in May in Holiday Hills?

In Holiday Hills, in May, it is raining for 17.8 days, with typically 3.39" (86mm) of accumulated precipitation.

What is the last month it snows in Holiday Hills?

May is the last month it regularly snows. During 0.1 snowfall days, in May, Holiday Hills aggregates 0.08" (2mm) of snow.

How many hours of daylight does Holiday Hills have in May?

The average day length in May in Holiday Hills is 14h and 37min.

What time are sunrise and sunset in May in Holiday Hills?

In May, on the first day of the month, sunrise is at 5:47 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 5:18 am and sunset at 8:22 pm CDT.

How many hours of sunshine does Holiday Hills have in May?

In Holiday Hills, the average sunshine duration in May is 8.5h.

What is the UV index intensity in May in Holiday Hills?

In Holiday Hills, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a medium health risk from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Holiday Hills, IL

Average temperature in May - Holiday Hills, IL
  • Average high temperature in May: 66.4°F

The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (26.6°F).

  • Average low temperature in May: 49.3°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (14.9°F).

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Average pressure in May
Holiday Hills, IL

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

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in May
Holiday Hills, IL

Average wind speed in May - Holiday Hills, IL
  • Average wind speed in May: 8.3mph

The windiest month (with the highest average wind speed) is January (10mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).

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Average humidity in May
Holiday Hills, IL

Average humidity in May - Holiday Hills, IL
  • Average humidity in May: 79%

The months with the highest relative humidity are January and February (85%).
The month with the lowest relative humidity is October (76%).

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Average rainfall in May
Holiday Hills, IL

Average rainfall in May - Holiday Hills, IL
  • Average rainfall in May: 3.39"

The wettest month (with the highest rainfall) is June (3.58").
The driest month (with the least rainfall) is December (1.34").

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Average rainfall days in May
Holiday Hills, IL

Average rainfall days in May - Holiday Hills, IL
  • Average rainfall days in May: 17.8 days

The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is February (4.9 days).

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Average snowfall in May
Holiday Hills, IL

Average snowfall in May - Holiday Hills, IL
  • Average snowfall in May: 0.08"

The month with the highest snowfall is January (5.16").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Holiday Hills, IL

Average snowfall days in May - Holiday Hills, IL
  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is January (13.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in May /
Average sunshine in May
Holiday Hills, IL

Average daylight in May / Average sunshine in May - Holiday Hills, IL
  • Average daylight in May: 14h and 4min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in May: 8h and 3min

The months with the most sunshine are July and August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

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Average sunshine days in May
Holiday Hills, IL

Average sunshine days in May - Holiday Hills, IL
  • Average sunshine days in May: 11 days

The month with the most sunshine days is November (16 days).
The month with the least sunshine days is June (10.2 days).

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Average UV index in May
Holiday Hills, IL

Average UV index in May - Holiday Hills, IL
  • Average UV index in May: 5

The month with the highest UV index is August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

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Average cloud cover in May
Holiday Hills, IL

Average cloud cover in May - Holiday Hills, IL
  • Average cloud cover in May: 43

The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are August and September (Cloud cover 31).

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Average visibility in May
Holiday Hills, IL

Average visibility in May - Holiday Hills, IL
  • Average visibility in May: 6mi

The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).

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Holiday Hills, Illinois, USA

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