May weather forecastStoneyville, IL

May

Weather in May

May, the last month of the spring in Stoneyville, is a pleasant month, with an average temperature varying between 53.6°F (12°C) and 70.7°F (21.5°C).

Temperature

As Stoneyville welcomes May, the average high-temperature sees a rise, transitioning from a mild 58.8°F (14.9°C) in April to an agreeable 70.7°F (21.5°C). Stoneyville in May experiences a low-temperature average of 53.6°F (12°C).

Humidity

In May, the average relative humidity is 77%.

Rainfall

May is the month with the most rainfall. Rain falls for 19.4 days and accumulates 5" (127mm) of precipitation.

Snowfall

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

Daylight

In May, the average length of the day is 14h and 31min.
On the first day of May, sunrise is at 5:51 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 5:24 am and sunset at 8:21 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 vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: A maximum daily UV index of 5 during May morphs into the following directions:
Undertake protective steps - Preventing sun damage is advised. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Updated: Jul 15, 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 77%.

The month with the most rainfall is May, when the rain falls for 19.4 days and typically aggregates up to 5" (127mm) of precipitation.

In Stoneyville, during May, the rain falls for 19.4 days and regularly aggregates up to 5" (127mm) of precipitation.

May through September are months without snowfall.

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

In Stoneyville, Illinois, the average day length in May is 14h and 31min.

On the first day of May, sunrise is at 5:51 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 5:24 am and sunset at 8:21 pm CDT.

The average sunshine duration in May is 8.8h.

In May, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a medium health risk from unsafe 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
Stoneyville, 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 (29.1°F).

  • Average low temperature in May: 53.6°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 (17.2°F).

Average pressure in May
Stoneyville, IL

  • Average pressure in May: 29.96"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in May
Stoneyville, IL

  • Average wind speed in May: 8.7mph

The windiest month (with the highest average wind speed) is April (10.2mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).

Average humidity in May
Stoneyville, IL

  • Average humidity in May: 77%

The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (72%).

Average rainfall in May
Stoneyville, IL

  • Average rainfall in May: 5"

The wettest month (with the highest rainfall) is May (5").
The driest month (with the least rainfall) is November (1.81").

Average rainfall days in May
Stoneyville, IL

  • Average rainfall days in May: 19.4 days

The month with the highest number of rainy days is July (19.9 days).
The month with the least rainy days is February (6.2 days).

Average snowfall in May
Stoneyville, IL

  • Average snowfall in May: 0"

The month with the highest snowfall is February (5.08").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in May
Stoneyville, IL

  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (12.9 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
Stoneyville, 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 month with the most sunshine is June (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

Average sunshine days in May
Stoneyville, IL

  • Average sunshine days in May: 9.1 days

The month with the most sunshine days is November (17 days).
The month with the least sunshine days is July (7.2 days).

Average UV index in May
Stoneyville, IL

  • Average UV index in May: 5

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

Average cloud cover in May
Stoneyville, IL

  • Average cloud cover in May: 42

The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is September (Cloud cover 32).

Average visibility in May
Stoneyville, IL

  • Average visibility in May: 6mi

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