May weather forecastBenton, IL

May

Weather in May

The last month of the spring, May, is a moderately hot month in Benton, Illinois, with an average temperature ranging between max 75.6°F (24.2°C) and min 58.1°F (14.5°C).

Temperature

The start of May signals an increase in the average high-temperature, moving from a refreshing 66.4°F (19.1°C) in April to a warm 75.6°F (24.2°C). The low-temperature average for Benton during May stands at a refreshing 58.1°F (14.5°C).

Humidity

May is the most humid month, with an average relative humidity of 79%.

Rainfall

In Benton, in May, during 18.5 rainfall days, 4.25" (108mm) of precipitation is typically accumulated. Throughout the year, there are 167.2 rainfall days, and 37.68" (957mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall.

Daylight

In May, the average length of the day is 14h and 14min.
On the first day of the month, sunrise is at 5:58 am and sunset at 7:46 pm. On the last day of May, sunrise is at 5:34 am and sunset at 8:12 pm CDT.

Sunshine

The average sunshine in May is 9.2h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum UV index of 6 during May translates into these guidelines:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Updated: Jul 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

In Benton, 75.6°F (24.2°C) is the average high-temperature and 58.1°F (14.5°C) is the average low-temperature during May.

The most humid month is May, with an average relative humidity of 79%.

In Benton, the average relative humidity in May is 79%.

In May, the rain falls for 18.5 days. Throughout May, 4.25" (108mm) of precipitation is accumulated.

In Benton, snow does not fall in May through September.

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

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

In May, on the first day of the month, sunrise is at 5:58 am and sunset at 7:46 pm. On the last day of the month, sunrise is at 5:34 am and sunset at 8:12 pm CDT.

In May, the average sunshine duration is 9.2h.

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

In May, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Benton, IL

  • Average high temperature in May: 75.6°F

The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (39°F).

  • Average low temperature in May: 58.1°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).

Average pressure in May
Benton, IL

  • Average pressure in May: 29.97"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in May
Benton, IL

  • Average wind speed in May: 7.9mph

The windiest months (with the highest average wind speed) are January and February (9.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).

Average humidity in May
Benton, IL

  • Average humidity in May: 79%

The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (70%).

Average rainfall in May
Benton, IL

  • Average rainfall in May: 4.25"

The wettest month (with the highest rainfall) is April (4.92").
The driest month (with the least rainfall) is September (1.97").

Average rainfall days in May
Benton, IL

  • Average rainfall days in May: 18.5 days

The month with the highest number of rainy days is May (18.5 days).
The month with the least rainy days is January (9.7 days).

Average snowfall in May
Benton, IL

  • Average snowfall in May: 0"

The month with the highest snowfall is February (1.93").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in May
Benton, IL

  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (6.1 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
Benton, IL

  • Average daylight in May: 14h and 12min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in May: 9h and 12min

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

Average sunshine days in May
Benton, IL

  • Average sunshine days in May: 10 days

The month with the most sunshine days is October (17.6 days).
The month with the least sunshine days is June (9.9 days).

Average UV index in May
Benton, 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
Benton, IL

  • Average cloud cover in May: 38

The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 28).

Average visibility in May
Benton, 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).