May weather forecast
Palos Heights, IL

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Weather in May

May, the last month of the spring in Palos Heights, is a comfortable month, with an average temperature ranging between max 66.4°F (19.1°C) and min 51.8°F (11°C).

Temperature

May's arrival signals a temperature shift, moving from a fresh 55.2°F (12.9°C) in April to an enjoyable 66.4°F (19.1°C). Throughout the nights in May, Palos Heights experiences an average low-temperature of 51.8°F (11°C).

Humidity

In May, the average relative humidity in Palos Heights is 76%.

Rainfall

The month with the most rainfall in Palos Heights is May, when the rain falls for 17.7 days and typically aggregates up to 3.07" (78mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

In May, the average length of the day in Palos Heights is 14h and 33min.
On the first day of the month, sunrise is at 5:46 am and sunset at 7:49 pm. On the last day of May, in Palos Heights, sunrise is at 5:19 am and sunset at 8:18 pm CDT.

Sunshine

In May, the average sunshine in Palos Heights is 8.9h.

UV index

The average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the average person.
Note: A maximum daily UV index of 5 during May morphs into the following directions:
Prioritize safety - Recommendations to avert sunburn are shared. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average May temperature in Palos Heights?

The high-temperature during May is 66.4°F (19.1°C) and the low-temperature is 51.8°F (11°C).

What is the average humidity in May in Palos Heights?

In Palos Heights, the average relative humidity in May is 76%.

What is the wettest month in Palos Heights?

May is the month with the most rainfall in Palos Heights, Illinois. Rain falls for 17.7 days and accumulates 3.07" (78mm) of precipitation.

How many days does it rain in May in Palos Heights?

In Palos Heights, Illinois, in May, it is raining for 17.7 days, with typically 3.07" (78mm) of accumulated precipitation.

When it does not snow in Palos Heights?

May through September are months without snowfall in Palos Heights, Illinois.

Does it snow in Palos Heights in May?

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

How many hours of daylight does Palos Heights have in May?

In May, the average day length in Palos Heights, Illinois, is 14h and 33min.

When is the sunrise / sunset in May in Palos Heights?

In May, on the first day of the month, sunrise is at 5:46 am and sunset at 7:49 pm. On the last day of the month, in Palos Heights, Illinois, sunrise is at 5:19 am and sunset at 8:18 pm CDT.

How many hours of sunshine does Palos Heights have in May?

The average sunshine duration in May is 8.9h.

What is the UV index reading in May in Palos Heights?

In May, the average daily maximum UV index in Palos Heights is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability 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
Palos Heights, IL

Average temperature in May - Palos Heights, IL
  • Average high temperature in May: 66.4°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (29.5°F).

  • Average low temperature in May: 51.8°F

The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).

Average pressure in May
Palos Heights, IL

Average pressure in May - Palos Heights, 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).

Average wind speed in May
Palos Heights, IL

Average wind speed in May - Palos Heights, IL
  • Average wind speed in May: 8.4mph

The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).

Average humidity in May
Palos Heights, IL

Average humidity in May - Palos Heights, IL
  • Average humidity in May: 76%

The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is October (72%).

Average rainfall in May
Palos Heights, IL

Average rainfall in May - Palos Heights, IL
  • Average rainfall in May: 3.07"

The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is December (1.02").

Average rainfall days in May
Palos Heights, IL

Average rainfall days in May - Palos Heights, IL
  • Average rainfall days in May: 17.7 days

The month with the highest number of rainy days is July (18 days).
The month with the least rainy days is February (4.9 days).

Average snowfall in May
Palos Heights, IL

Average snowfall in May - Palos Heights, IL
  • Average snowfall in May: 0"

The month with the highest snowfall is February (3.07").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in May
Palos Heights, IL

Average snowfall days in May - Palos Heights, IL
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (11.8 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
Palos Heights, IL

Average daylight in May / Average sunshine in May - Palos Heights, 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 12min).

  • Average sunshine in May: 8h and 5min

The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

Average sunshine days in May
Palos Heights, IL

Average sunshine days in May - Palos Heights, IL
  • Average sunshine days in May: 10.8 days

The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is July (9.8 days).

Average UV index in May
Palos Heights, IL

Average UV index in May - Palos Heights, IL
  • Average UV index in May: 5

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

Average cloud cover in May
Palos Heights, IL

Average cloud cover in May - Palos Heights, IL
  • Average cloud cover in May: 41

The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 28).

Average visibility in May
Palos Heights, IL

Average visibility in May - Palos Heights, 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).

Palos Heights, Illinois, USA

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