Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
The shift into May is characterized by a rise in the average high-temperature, transitioning from April's comfortable 64.9°F (18.3°C) to a moderately hot 74.5°F (23.6°C). Maryville records an average low-temperature of 57.6°F (14.2°C) throughout the month of May.Humidity
The months with the highest humidity in Maryville are May, July and August, with an average relative humidity of 79%.Rainfall
The month with the most rainfall is May, when the rain falls for 17.1 days and typically aggregates up to 4.17" (106mm) of precipitation.Snowfall
In Maryville, snow does not fall in April through August and October.Daylight
In May, the average length of the day is 14h and 18min.On the first day of the month, sunrise is at 6:01 am and sunset at 7:52 pm. On the last day of May, in Maryville, Illinois, sunrise is at 5:36 am and sunset at 8:18 pm CDT.
Sunshine
The average sunshine in May is 9.4h.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: In May, a daily maximum UV index of 6 leads to the following instructions:
Guard oneself from overexposure. Defence against sun injury is vital. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are May temperatures in Maryville?
What is the most humid month in Maryville?
What is the average humidity in May in Maryville?
What is the rainiest month in Maryville?
How much does it rain in Maryville in May?
When it does not snow in Maryville?
How many hours of daylight does Maryville have in May?
What time are sunrise and sunset in May in Maryville?
How many hours of sunshine does Maryville have in May?
What are the months with the highest UV index in Maryville?
What is the UV index reading in May in Maryville?
Average temperature in May
Maryville, IL
- Average high temperature in May: 74.5°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (37.4°F).
- Average low temperature in May: 57.6°F
The month with the highest average low temperature is July (68.2°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in May
Maryville, IL
- Average pressure in May: 29.96"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in May
Maryville, IL
- Average wind speed in May: 7.5mph
The windiest month (with the highest average wind speed) is January (9.5mph).
The calmest month (with the lowest average wind speed) is July (5.6mph).
Average humidity in May
Maryville, IL
- Average humidity in May: 79%
The months with the highest relative humidity are May, July and August (79%).
The month with the lowest relative humidity is October (71%).
Average rainfall in May
Maryville, IL
- Average rainfall in May: 4.17"
The wettest month (with the highest rainfall) is May (4.17").
The driest month (with the least rainfall) is February (1.77").
Average rainfall days in May
Maryville, IL
- Average rainfall days in May: 17.1 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is January (7.8 days).
Average snowfall in May
Maryville, IL
- Average snowfall in May: 0"
The month with the highest snowfall is January (2.13").
The months with the least snowfall are April, May, June, July, August and October (0").
Average snowfall days in May
Maryville, IL
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (7 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight in May /
Average sunshine in May
Maryville, IL
- Average daylight in May: 14h and 2min
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 30min).
- Average sunshine in May: 9h and 2min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days in May
Maryville, IL
- Average sunshine days in May: 11.6 days
The month with the most sunshine days is December (18.6 days).
The month with the least sunshine days is May (11.6 days).
Average UV index in May
Maryville, 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, November and December (UV index 2).
Average cloud cover in May
Maryville, IL
- Average cloud cover in May: 38
The month with the most cloud cover is January (Cloud cover 51).
The months with the least cloud cover are June and August (Cloud cover 28).
Average visibility in May
Maryville, 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).
Maryville, Illinois, USA
Weather forecast for your location
2. Allow the app to use your location