May weather forecast
West Chicago, IL

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Weather in May

May, the last month of the spring in West Chicago, is an agreeable month, with an average temperature ranging between max 68.2°F (20.1°C) and min 51.4°F (10.8°C).

Temperature

May brings a rise in West Chicago's average high-temperature, moving from a moderate 56.1°F (13.4°C) in April to a pleasant 68.2°F (20.1°C). West Chicago usually reports an average low-temperature of 51.4°F (10.8°C) during the month of May.

Humidity

In May, the average relative humidity in West Chicago is 78%.

Rainfall

May is the month with the most rainfall in West Chicago. Rain falls for 12.4 days and accumulates 1.26" (32mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

In West Chicago, Illinois, the average length of the day in May is 14h and 34min.
On the first day of the month, sunrise is at 5:47 am and sunset at 7:51 pm. On the last day of May, sunrise is at 5:20 am and sunset at 8:21 pm CDT.

Sunshine

In May, the average sunshine in West Chicago, Illinois, is 8.5h.

UV index

The average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: During May, 5 as the daily maximum UV index converts into the following advice:
Take precautions - Protection against sunburn is recommended. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
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Frequently asked questions

What is the average May temperature in West Chicago?

The high-temperature, in May, in West Chicago, records 68.2°F (20.1°C), while the low-temperature is 51.4°F (10.8°C).

What is the average humidity in May in West Chicago?

In West Chicago, Illinois, the average relative humidity in May is 78%.

What is the rainiest month in West Chicago?

The month with the most rainfall in West Chicago is May, when the rain falls for 12.4 days and typically aggregates up to 1.26" (32mm) of precipitation.

How much does it rain in West Chicago in May?

In West Chicago, in May, it is raining for 12.4 days, with typically 1.26" (32mm) of accumulated precipitation.

When it does not snow in West Chicago?

May through September are months without snowfall in West Chicago, Illinois.

Does it snow in West Chicago in May?

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

What is the average length of the day in May in West Chicago?

In May, the average day length in West Chicago is 14h and 34min.

When are sunrise and sunset in May in West Chicago?

In May, on the first day of the month, sunrise is at 5:47 am and sunset at 7:51 pm. On the last day of the month, in West Chicago, sunrise is at 5:20 am and sunset at 8:21 pm CDT.

How long on average sun shines in May in West Chicago?

The average sunshine duration in May in West Chicago is 8.5h.

What is the UV index intensity in May in West Chicago?

The average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a medium hazard to health 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
West Chicago, IL

Average temperature in May - West Chicago, IL
  • Average high temperature in May: 68.2°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (27.9°F).

  • Average low temperature in May: 51.4°F

The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (16.2°F).

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Average pressure in May
West Chicago, IL

Average pressure in May - West Chicago, 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
West Chicago, IL

Average wind speed in May - West Chicago, IL
  • Average wind speed in May: 8.2mph

The windiest month (with the highest average wind speed) is January (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).

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Average humidity in May
West Chicago, IL

Average humidity in May - West Chicago, IL
  • Average humidity in May: 78%

The months with the highest relative humidity are January and February (83%).
The month with the lowest relative humidity is October (74%).

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Average rainfall in May
West Chicago, IL

Average rainfall in May - West Chicago, IL
  • Average rainfall in May: 1.26"

The wettest month (with the highest rainfall) is May (1.26").
The driest months (with the least rainfall) are November and December (0.39").

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Average rainfall days in May
West Chicago, IL

Average rainfall days in May - West Chicago, IL
  • Average rainfall days in May: 12.4 days

The month with the highest number of rainy days is May (12.4 days).
The month with the least rainy days is January (3.4 days).

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Average snowfall in May
West Chicago, IL

Average snowfall in May - West Chicago, IL
  • Average snowfall in May: 0"

The month with the highest snowfall is January (1.14").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in May
West Chicago, IL

Average snowfall days in May - West Chicago, IL
  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is January (7.6 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
West Chicago, IL

Average daylight in May / Average sunshine in May - West Chicago, 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 3min

The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

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Average sunshine days in May
West Chicago, IL

Average sunshine days in May - West Chicago, IL
  • Average sunshine days in May: 14.9 days

The month with the most sunshine days is December (22.4 days).
The month with the least sunshine days is June (13.3 days).

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Average UV index in May
West Chicago, IL

Average UV index in May - West Chicago, IL
  • Average UV index in May: 5

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 May
West Chicago, IL

Average cloud cover in May - West Chicago, IL
  • Average cloud cover in May: 43

The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is September (Cloud cover 32).

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Average visibility in May
West Chicago, IL

Average visibility in May - West Chicago, IL
  • Average visibility in May: 6mi

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

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West Chicago, Illinois, USA

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