May weather forecast
Antioch, IL

Weather in May

The last month of the spring, May, is a comfortable month in Antioch, Illinois, with an average temperature fluctuating between 65.1°F (18.4°C) and 48.7°F (9.3°C).

Temperature

In May, the average high-temperature increases from a fresh 53.2°F (11.8°C) in April to a comfortable 65.1°F (18.4°C). In May, in Antioch, the average low-temperature is 48.7°F (9.3°C).

Humidity

The average relative humidity in May is 80%.

Rainfall

In Antioch, during May, the rain falls for 17.1 days and regularly aggregates up to 3.03" (77mm) of precipitation. In Antioch, Illinois, during the entire year, the rain falls for 139.6 days and collects up to 26.18" (665mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Antioch, Illinois. May is the last month it regularly snows. During 0.3 snowfall days, Antioch aggregates 0.08" (2mm) of snow. Throughout the year, there are 38.2 snowfall days, and 15.59" (396mm) of snow is accumulated.

Daylight

The average length of the day in May is 14h and 38min.
On the first day of the month, sunrise is at 5:46 am and sunset at 7:52 pm. On the last day of May, in Antioch, sunrise is at 5:17 am and sunset at 8:22 pm CDT.

Sunshine

In Antioch, the average sunshine in May is 8.3h.

UV index

May through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: In May, the average maximum UV index of 5 translate into the following recommendations:
Take precautions - Protection against skin and eye damage is obliged. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the average humidity in May in Antioch?

The average relative humidity in May in Antioch, Illinois, is 80%.

How many days does it rain in May in Antioch?

In Antioch, in May, during 17.1 rainfall days, 3.03" (77mm) of precipitation is typically accumulated.

What is the last month it snows in Antioch?

May is the last month it regularly snows in Antioch, Illinois. During 0.3 snowfall days, in May, Antioch aggregates 0.08" (2mm) of snow.

How many hours of daylight does Antioch have in May?

The average day length in May in Antioch is 14h and 38min.

When are sunrise and sunset in May in Antioch?

On the first day of May in Antioch, Illinois, sunrise is at 5:46 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 5:17 am and sunset at 8:22 pm CDT.

How long on average sun shines in May in Antioch?

The average sunshine duration in May in Antioch is 8.3h.

What is the month with the highest UV index in Antioch?

May through August, with an average maximum UV index of 5, are months with the highest UV index in Antioch, Illinois.

What is the UV index intensity in May in Antioch?

In May, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium hazard to health from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Antioch, IL

Average temperature in May - Antioch, IL
  • Average high temperature in May: 65.1°F

The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (26.2°F).

  • Average low temperature in May: 48.7°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (14.9°F).

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Average pressure in May
Antioch, IL

Average pressure in May - Antioch, IL
  • Average pressure in May: 29.96"Hg

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

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Average wind speed in May
Antioch, IL

Average wind speed in May - Antioch, IL
  • Average wind speed in May: 8.5mph

The windiest months (with the highest average wind speed) are January and February (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).

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Average humidity in May
Antioch, IL

Average humidity in May - Antioch, IL
  • Average humidity in May: 80%

The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (76%).

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Average rainfall in May
Antioch, IL

Average rainfall in May - Antioch, IL
  • Average rainfall in May: 3.03"

The wettest month (with the highest rainfall) is June (3.54").
The driest month (with the least rainfall) is December (1.06").

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Average rainfall days in May
Antioch, IL

Average rainfall days in May - Antioch, IL
  • Average rainfall days in May: 17.1 days

The month with the highest number of rainy days is July (18.5 days).
The month with the least rainy days is February (3.4 days).

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Average snowfall in May
Antioch, IL

Average snowfall in May - Antioch, IL
  • Average snowfall in May: 0.08"

The month with the highest snowfall is January (4.33").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Antioch, IL

Average snowfall days in May - Antioch, IL
  • Average snowfall days in May: 0.3 days

The month with the highest number of snowfall days is January (10.1 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
Antioch, IL

Average daylight in May / Average sunshine in May - Antioch, IL
  • Average daylight in May: 14h and 38min

The month with the longest days is June (Average daylight: 15h and 15min).
The month with the shortest days is December (Average daylight: 9h and 8min).

  • Average sunshine in May: 8h and 18min

The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The months with the least sunshine are January and February (Average sunshine: 3h and 36min).

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Average sunshine days in May
Antioch, IL

Average sunshine days in May - Antioch, IL
  • Average sunshine days in May: 11.1 days

The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is July (9.9 days).

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Average UV index in May
Antioch, IL

Average UV index in May - Antioch, IL
  • Average UV index in May: 5

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).

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Average cloud cover in May
Antioch, IL

Average cloud cover in May - Antioch, IL
  • Average cloud cover in May: 44

The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are July, August and September (Cloud cover 32).

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Average visibility in May
Antioch, IL

Average visibility in May - Antioch, 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).

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