May weather forecastHighland Park, IL

May

Weather in May

May, the last month of the spring in Highland Park, is an enjoyable month, with an average temperature varying between 61.2°F (16.2°C) and 49.6°F (9.8°C).

Temperature

Noticing a change, the average high-temperature during May moves from April's cool 50.9°F (10.5°C) to a refreshing 61.2°F (16.2°C). Highland Park's temperature tends to fall to an average low of 49.6°F (9.8°C) during the nights of May.

Humidity

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

Rainfall

The wettest months are May and June, with an average 3.82" (97mm) of rainfall.

Snowfall

In Highland Park, snow does not fall in May through September.

Daylight

The average length of the day in May is 14h and 36min.
On the first day of May, sunrise is at 5:45 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 5:17 am and sunset at 8:20 pm CDT.

Sunshine

In May, the average sunshine is 8.9h.

UV index

In Highland Park, the average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the average person.
Note: A typical high UV index of 4 in May suggests the following recommendations:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.

Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The high-temperature, in May, in Highland Park, records 61.2°F (16.2°C), while the low-temperature is 49.6°F (9.8°C).

In Highland Park, Illinois, the average relative humidity in May is 79%.

The wettest months in Highland Park are May and June, with an average 3.82" (97mm) of rainfall.

In Highland Park, during May, the rain falls for 17.7 days and regularly aggregates up to 3.82" (97mm) of precipitation.

In Highland Park, Illinois, snow does not fall in May through September.

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

The average day length in May in Highland Park, Illinois, is 14h and 36min.

On the first day of May in Highland Park, sunrise is at 5:45 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 5:17 am and sunset at 8:20 pm CDT.

In Highland Park, the average sunshine duration in May is 8.9h.

In Highland Park, Illinois, the average daily maximum UV index in May is 4. A UV Index of 3 to 5 symbolizes a moderate vulnerability from exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A May J J A S O N D

Apr

May

Jun

Average high temperature

50.9°F

61.2°F

71.1°F

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

11.6mph

9.7mph

8.8mph

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

10.8

11.2

Average UV index

Average cloud cover

Average visibility

Average temperature in May
Highland Park, IL

Average high temperature in May: 61.2°F

The warmest month (with the highest average high temperature) is July (77.7°F).
The month with the lowest average high temperature is January (28.6°F).

Average low temperature in May: 49.6°F

The months with the highest average low temperature are July and August (66.7°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).

Average pressure in May
Highland Park, IL

Average pressure in May: 29.96"Hg

The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in May
Highland Park, IL

Average wind speed in May: 9.1mph

The windiest month (with the highest average wind speed) is January (11.9mph).
The calmest month (with the lowest average wind speed) is August (7.4mph).

Average humidity in May
Highland Park, IL

Average humidity in May: 79%

The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is October (73%).

Average rainfall in May
Highland Park, IL

Average rainfall in May: 3.82"

The wettest months (with the highest rainfall) are May and June (3.82").
The driest month (with the least rainfall) is December (1.3").

Average rainfall days in May
Highland Park, IL

Average rainfall days in May: 17.7 days

The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is February (5.9 days).

Average snowfall in May
Highland Park, IL

Average snowfall in May: 0"

The month with the highest snowfall is January (4.13").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in May
Highland Park, IL

Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (11.9 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
Highland Park, IL

Average daylight in May: 14h and 36min

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 54min

The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

Average sunshine days in May
Highland Park, IL

Average sunshine days in May: 11.2 days

The month with the most sunshine days is December (15.3 days).
The month with the least sunshine days is April (10.8 days).

Average UV index in May
Highland Park, IL

Average UV index in May: 4

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
Highland Park, IL

Average cloud cover in May: 41

The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are July and August (Cloud cover 27).

Average visibility in May
Highland Park, 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).