May weather forecastToulon, IL

May

Weather in May

The last month of the spring, May, is a pleasant month in Toulon, Illinois, with an average temperature ranging between max 70.7°F (21.5°C) and min 53.6°F (12°C).

Temperature

In May, the meteorological conditions change with the average high-temperature moving from a moderate 59.2°F (15.1°C) in April to an agreeable 70.7°F (21.5°C). Toulon reports a consistent average low-temperature of 53.6°F (12°C) throughout May nights.

Humidity

The average relative humidity in May is 78%.

Rainfall

May is the month with the most rainfall. Rain falls for 18.3 days and accumulates 4.45" (113mm) of precipitation.

Snowfall

May through September are months without snowfall in Toulon.

Daylight

In May, the average length of the day is 14h and 30min.
On the first day of the month, sunrise is at 5:56 am and sunset at 7:56 pm. On the last day of May, sunrise is at 5:29 am and sunset at 8:25 pm CDT.

Sunshine

In May, the average sunshine is 8.8h.

UV index

The average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for average individuals.
Note: A maximum high UV index of 5 in May translates into the following recommendations:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Updated: Jul 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

In May, the average high-temperature and low-temperature are 70.7°F (21.5°C) and 53.6°F (12°C) respectively.

The average relative humidity in May is 78%.

May is the month with the most rainfall. Rain falls for 18.3 days and accumulates 4.45" (113mm) of precipitation.

In Toulon, Illinois, in May, during 18.3 rainfall days, 4.45" (113mm) of precipitation is typically accumulated.

May through September are months without snowfall.

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

The average day length in May is 14h and 30min.

In May, on the first day of the month, sunrise is at 5:56 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 5:29 am and sunset at 8:25 pm CDT.

The average sunshine duration in May is 8.8h.

The average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a moderate health threat from exposure to Sun's UV rays.
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
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Toulon, IL

  • Average high temperature in May: 70.7°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (28.8°F).

  • Average low temperature in May: 53.6°F

The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (16.7°F).

Average pressure in May
Toulon, IL

  • Average pressure in May: 29.95"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in May
Toulon, IL

  • Average wind speed in May: 9.1mph

The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).

Average humidity in May
Toulon, IL

  • Average humidity in May: 78%

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).

Average rainfall in May
Toulon, IL

  • Average rainfall in May: 4.45"

The wettest month (with the highest rainfall) is May (4.45").
The driest months (with the least rainfall) are January and December (1.42").

Average rainfall days in May
Toulon, IL

  • Average rainfall days in May: 18.3 days

The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is February (5.6 days).

Average snowfall in May
Toulon, IL

  • Average snowfall in May: 0"

The month with the highest snowfall is January (3.66").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in May
Toulon, IL

  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (11.4 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
Toulon, IL

  • Average daylight in May: 14h and 30min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in May: 8h and 48min

The months with the most sunshine are June and July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

Average sunshine days in May
Toulon, IL

  • Average sunshine days in May: 11.3 days

The month with the most sunshine days is November (18 days).
The month with the least sunshine days is June (10.2 days).

Average UV index in May
Toulon, IL

  • Average UV index in May: 5

The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).

Average cloud cover in May
Toulon, IL

  • Average cloud cover in May: 41

The month with the most cloud cover is January (Cloud cover 58).
The months with the least cloud cover are August and September (Cloud cover 30).

Average visibility in May
Toulon, IL

  • Average visibility in May: 6mi

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