April weather forecast
Northlake, IL

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Weather in April

April is a cool spring month in Northlake, Illinois, with an average temperature fluctuating between 40.6°F (4.8°C) and 55.2°F (12.9°C).

Temperature

April's arrival is marked by an increase in the average high-temperature, moving from a chilly 44.2°F (6.8°C) in March to a fresh 55.2°F (12.9°C). Northlake's April nights cool down to an average low-temperature of 40.6°F (4.8°C).

Humidity

In Northlake, the average relative humidity in April is 74%.

Rainfall

In Northlake, during April, the rain falls for 15.8 days and regularly aggregates up to 2.76" (70mm) of precipitation. In Northlake, during the entire year, the rain falls for 149.4 days and collects up to 25.08" (637mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Northlake, Illinois. In Northlake, during April, snow falls for 2.3 days and regularly aggregates up to 2.01" (51mm) of snow. In Northlake, during the entire year, snow falls for 45.8 days and aggregates up to 14.25" (362mm) of snow.

Daylight

The average length of the day in April in Northlake, Illinois, is 13h and 23min.
On the first day of the month, sunrise is at 6:32 am and sunset at 7:17 pm. On the last day of April, sunrise is at 5:47 am and sunset at 7:49 pm CDT.

Sunshine

In April, the average sunshine is 7.6h.

UV index

The average daily maximum UV index in April is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: In April, the maximum UV index of 3 suggests these recommendations:
Be vigilant - Preventing sunburn is recommended. To protect against the Sun's most potent rays, avoid direct exposure around midday. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
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Frequently asked questions

What are the temperatures in Northlake in April?

In Northlake, 55.2°F (12.9°C) is the average high-temperature and 40.6°F (4.8°C) is the average low-temperature during April.

What is the average humidity in April in Northlake?

The average relative humidity in April in Northlake, Illinois, is 74%.

How much does it rain in Northlake in April?

In Northlake, during April, the rain falls for 15.8 days and regularly aggregates up to 2.76" (70mm) of precipitation.

How much does it snow in Northlake in April?

In Northlake, in April, during 2.3 snowfall days, 2.01" (51mm) of snow is typically accumulated.

What is the average length of the day in April in Northlake?

The average day length in April is 13h and 23min.

When is the sunrise / sunset in April in Northlake?

On the first day of April in Northlake, sunrise is at 6:32 am and sunset at 7:17 pm. On the last day of the month, sunrise is at 5:47 am and sunset at 7:49 pm CDT.

How long on average sun shines in April in Northlake?

The average sunshine duration in April in Northlake is 7.6h.

How high is the UV index in April in Northlake?

In April, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a medium hazard to health from exposure to the Sun's UV radiation.
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 April
Northlake, IL

Average temperature in April - Northlake, IL
  • Average high temperature in April: 55.2°F

The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (28.8°F).

  • Average low temperature in April: 40.6°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°F).

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Average pressure in April
Northlake, IL

Average pressure in April - Northlake, IL
  • Average pressure in April: 29.95"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 April
Northlake, IL

Average wind speed in April - Northlake, IL
  • Average wind speed in April: 9.7mph

The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).

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Average humidity in April
Northlake, IL

Average humidity in April - Northlake, IL
  • Average humidity in April: 74%

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

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Average rainfall in April
Northlake, IL

Average rainfall in April - Northlake, IL
  • Average rainfall in April: 2.76"

The wettest month (with the highest rainfall) is May (3.11").
The driest month (with the least rainfall) is December (1.14").

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Average rainfall days in April
Northlake, IL

Average rainfall days in April - Northlake, IL
  • Average rainfall days in April: 15.8 days

The months with the highest number of rainy days are May and July (17.3 days).
The month with the least rainy days is February (5.1 days).

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Average snowfall in April
Northlake, IL

Average snowfall in April - Northlake, IL
  • Average snowfall in April: 2.01"

The month with the highest snowfall is February (3.86").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in April
Northlake, IL

Average snowfall days in April - Northlake, IL
  • Average snowfall days in April: 2.3 days

The month with the highest number of snowfall days is January (12.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in April /
Average sunshine in April
Northlake, IL

Average daylight in April / Average sunshine in April - Northlake, IL
  • Average daylight in April: 13h and 2min

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 April: 7h and 4min

The months with the most sunshine are July and August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

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Average sunshine days in April
Northlake, IL

Average sunshine days in April - Northlake, IL
  • Average sunshine days in April: 11 days

The month with the most sunshine days is November (16.8 days).
The month with the least sunshine days is July (9.5 days).

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Average UV index in April
Northlake, IL

Average UV index in April - Northlake, IL
  • Average UV index in April: 3

The months with the highest UV index are June, July and 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 April
Northlake, IL

Average cloud cover in April - Northlake, IL
  • Average cloud cover in April: 49

The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 30).

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Average visibility in April
Northlake, IL

Average visibility in April - Northlake, IL
  • Average visibility in April: 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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Northlake, Illinois, USA

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