May weather forecast
Junction, IL

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Weather in May

The last month of the spring, May, is a warm month in Junction, Illinois, with an average temperature ranging between max 75.6°F (24.2°C) and min 58.3°F (14.6°C).

Temperature

As Junction transitions into May, the average high-temperature shows a change, moving from an enjoyable 66.4°F (19.1°C) in April to a warm 75.6°F (24.2°C). Throughout the May nights, Junction encounters a low-temperature of 58.3°F (14.6°C).

Humidity

May is the most humid month, with an average relative humidity of 80%.

Rainfall

In Junction, during May, the rain falls for 16.7 days and regularly aggregates up to 2.4" (61mm) of precipitation. Throughout the year, there are 146.3 rainfall days, and 24.96" (634mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall in Junction.

Daylight

In Junction, the average length of the day in May is 14h and 13min.
On the first day of May, sunrise is at 5:56 am and sunset at 7:43 pm. On the last day of the month, sunrise is at 5:32 am and sunset at 8:08 pm CDT.

Sunshine

In May, the average sunshine is 9.4h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum daily UV index of 6 during May translates into the following directions:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Junction in May?

The high-temperature, in May, in Junction, records 75.6°F (24.2°C), while the low-temperature is 58.3°F (14.6°C).

What is the most humid month in Junction?

The most humid month in Junction, Illinois, is May, with an average relative humidity of 80%.

What is the average humidity in May in Junction?

In Junction, the average relative humidity in May is 80%.

How much does it rain in Junction in May?

In Junction, in May, during 16.7 rainfall days, 2.4" (61mm) of precipitation is typically accumulated.

When it does not snow in Junction?

May through October are months without snowfall in Junction, Illinois.

Does it snow in Junction in May?

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

How many hours of daylight does Junction have in May?

In Junction, Illinois, the average day length in May is 14h and 13min.

When is the sunrise / sunset in May in Junction?

On the first day of May, sunrise is at 5:56 am and sunset at 7:43 pm. On the last day of the month, sunrise is at 5:32 am and sunset at 8:08 pm CDT.

How many hours of sunshine does Junction have in May?

In May, the average sunshine duration in Junction is 9.4h.

What are the months with the highest UV index in Junction?

The months with the highest UV index are May through August, with an average maximum UV index of 6.

How high is the UV index in May in Junction?

The average daily maximum UV index in May in Junction is 6. A UV Index estimate of 6 to 7 represents a high hazard to health from exposure to the Sun's UV radiation.
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
Junction, IL

Average temperature in May - Junction, IL
  • Average high temperature in May: 75.6°F

The warmest month (with the highest average high temperature) is July (86.2°F).
The month with the lowest average high temperature is January (39.7°F).

  • Average low temperature in May: 58.3°F

The month with the highest average low temperature is July (68.4°F).
The coldest month (with the lowest average low temperature) is January (26.8°F).

Average pressure in May
Junction, IL

Average pressure in May - Junction, IL
  • Average pressure in May: 29.98"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in May
Junction, IL

Average wind speed in May - Junction, IL
  • Average wind speed in May: 8mph

The windiest month (with the highest average wind speed) is February (9.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).

Average humidity in May
Junction, IL

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

The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is October (70%).

Average rainfall in May
Junction, IL

Average rainfall in May - Junction, IL
  • Average rainfall in May: 2.4"

The wettest month (with the highest rainfall) is April (3.27").
The driest month (with the least rainfall) is September (1.14").

Average rainfall days in May
Junction, IL

Average rainfall days in May - Junction, IL
  • Average rainfall days in May: 16.7 days

The month with the highest number of rainy days is May (16.7 days).
The month with the least rainy days is November (9 days).

Average snowfall in May
Junction, IL

Average snowfall in May - Junction, IL
  • Average snowfall in May: 0"

The month with the highest snowfall is February (0.87").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in May
Junction, IL

Average snowfall days in May - Junction, IL
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (4.8 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
Junction, IL

Average daylight in May / Average sunshine in May - Junction, IL
  • Average daylight in May: 14h and 1min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in May: 9h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).

Average sunshine days in May
Junction, IL

Average sunshine days in May - Junction, IL
  • Average sunshine days in May: 11.2 days

The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is May (11.2 days).

Average UV index in May
Junction, IL

Average UV index in May - Junction, IL
  • Average UV index in May: 6

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).

Average cloud cover in May
Junction, IL

Average cloud cover in May - Junction, IL
  • Average cloud cover in May: 37

The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 27).

Average visibility in May
Junction, IL

Average visibility in May - Junction, 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).

Junction, Illinois, USA

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