Climate and monthly weather forecast
Highland Park, IL

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Weather in January

January, the same as December, in Highland Park, Illinois, is a freezing cold winter month, with temperature in the range of an average low of 18.9°F (-7.3°C) and an average high of 28.6°F (-1.9°C). January is the coldest month, with the temperature often reaching an average high of 28.6°F (-1.9°C) and an average low of 18.9°F (-7.3°C). Weather in January »

Weather in February

The last month of the winter, February, is also a subzero cold month in Highland Park, Illinois, with an average temperature ranging between max 31.3°F (-0.4°C) and min 21.6°F (-5.8°C). The unfolding of February shows an average high-temperature of a still freezing cold 31.3°F (-0.4°C), indicating a slight variance from January's 28.6°F (-1.9°C). Weather in February »

Weather in March

The first month of the spring, March, is a wintry month in Highland Park, Illinois, with an average temperature fluctuating between 31.5°F (-0.3°C) and 41.5°F (5.3°C). The start of March brings a shift in the average high-temperature, increasing from February's freezing cold 31.3°F (-0.4°C) to an icy 41.5°F (5.3°C). Weather in March »

Weather in April

April is a fresh spring month in Highland Park, Illinois, with temperature in the range of an average low of 39.7°F (4.3°C) and an average high of 50.9°F (10.5°C). The shift from March to April is marked by an increase in the average high-temperature, moving from an icy 41.5°F (5.3°C) to a cool 50.9°F (10.5°C). Weather in April »

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). 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). Weather in May »

Weather in June

The first month of the summer, June, is a pleasant month in Highland Park, Illinois, with temperature in the range of an average high of 71.1°F (21.7°C) and an average low of 59.4°F (15.2°C). As June arrives, Highland Park's weather shows an increase in high-temperatures, moving from May's refreshing 61.2°F (16.2°C) to an agreeable 71.1°F (21.7°C). Weather in June »

Weather in July

July is a warm summer month in Highland Park, Illinois, with an average temperature ranging between min 66.7°F (19.3°C) and max 77.7°F (25.4°C). With average high and low temperatures of 77.7°F (25.4°C) and 66.7°F (19.3°C) respectively, July is Highland Park's warmest month. Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Highland Park, Illinois, with temperature in the range of an average low of 66.7°F (19.3°C) and an average high of 77.5°F (25.3°C). Shifting into August, Highland Park records an average high-temperature of a still warm 77.5°F (25.3°C), presenting minor fluctuations compared to the previous month. Weather in August »

Weather in September

The first month of the autumn, September, is also an agreeable month in Highland Park, Illinois, with temperature in the range of an average high of 71.2°F (21.8°C) and an average low of 60.1°F (15.6°C). With the onset of September, Highland Park's climate undergoes a slight change as the average high-temperature moves from a moderately hot 77.5°F (25.3°C) in August to an agreeable 71.2°F (21.8°C). Weather in September »

Weather in October

October, like September, is another refreshing autumn month in Highland Park, Illinois, with an average temperature ranging between max 58.6°F (14.8°C) and min 47.7°F (8.7°C). As October begins, there is a decrease in the average high-temperature, falling from an agreeable 71.2°F (21.8°C) in September to a mild 58.6°F (14.8°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a frosty month in Highland Park, Illinois, with temperature in the range of an average high of 45.5°F (7.5°C) and an average low of 35.1°F (1.7°C). Highland Park, Illinois, in November experiences a subtle temperature decline, with average high-temperatures reducing from a mild 58.6°F (14.8°C) in October to a chilly 45.5°F (7.5°C). Weather in November »

Weather in December

The first month of the winter, December, is still a cold month in Highland Park, Illinois, with an average temperature fluctuating between 34.5°F (1.4°C) and 26.2°F (-3.2°C). As Highland Park enters December, the average high-temperature decreases from the a frosty 45.5°F (7.5°C) of November to an icy 34.5°F (1.4°C). Weather in December »
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the coldest months in Highland Park?

In Highland Park, January is known for its average lowest temperatures, reaching a high of 28.6°F (-1.9°C) and a low of 18.9°F (-7.3°C).

What is the most humid month in Highland Park?

January and February, with an average relative humidity of 82%, are most humid months in Highland Park, Illinois.

How much does it rain in Highland Park?

In Highland Park, during the entire year, the rain falls for 154.1 days and collects up to 30.24" (768mm) of precipitation.

When does it snow in Highland Park?

January through April, October through December are months with snowfall in Highland Park, Illinois.

What is the snowiest month in Highland Park?

January is the month with the most snowfall in Highland Park, Illinois. Snow falls for 11.9 days and accumulates 4.13" (105mm) of snow.

How much does it snow in Highland Park?

In Highland Park, Illinois, during the entire year, snow falls for 42.9 days and aggregates up to 13.82" (351mm) of snow.

What is the month with the least sunshine in Highland Park?

January has the least sunshine of the year, with an average of 3.8h of sunshine.

When is Daylight Saving Time (DST) in Highland Park?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Highland Park, Illinois, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.

What is the wettest month in Highland Park?

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

When it does not snow in Highland Park?

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

When are the longest days in Highland Park?

With an average of 15h and 12min of daylight, June has the longest days of the year in Highland Park.

What are the months with the highest UV index in Highland Park?

June through August, with an average maximum UV index of 6, are months with the highest UV index in Highland Park.

What month is the hottest in Highland Park?

July, with its high-temperature average of 77.7°F (25.4°C) and a low-temperature average of 66.7°F (19.3°C), is the warmest month in Highland Park.

What month has the most sunshine in Highland Park?

The month with the most sunshine in Highland Park is August, with an average of 10.7h of sunshine.

What is the least humid month in Highland Park?

With an average relative humidity of 73%, October is the least humid month in Highland Park.

What is the driest month in Highland Park?

The month with the least rainfall is December, when the rain falls for 8.6 days and typically collects 1.3" (33mm) of precipitation.

What is the month with the shortest days in Highland Park?

The month with the shortest days is December, with an average of 9h and 12min of daylight.

When is the lowest UV index in Highland Park?

The month with the lowest UV index in Highland Park is December, with an average maximum UV index of 1.

Average temperature
Highland Park, IL

Average temperature - Highland Park, IL

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).

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
Highland Park, IL

Average pressure - Highland Park, IL

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
Highland Park, IL

Average wind speed - Highland Park, IL

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
Highland Park, IL

Average humidity - Highland Park, IL

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

Average rainfall
Highland Park, IL

Average rainfall - Highland Park, IL

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
Highland Park, IL

Average rainfall days - Highland Park, IL

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
Highland Park, IL

Average snowfall - Highland Park, IL

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
Highland Park, IL

Average snowfall days - Highland Park, IL

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 / Average sunshine
Highland Park, IL

Average daylight / Average sunshine - Highland Park, IL

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).

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
Highland Park, IL

Average sunshine days - Highland Park, IL

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 visibility
Highland Park, IL

Average visibility - Highland Park, IL

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).

Highland Park, Illinois, USA

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