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
East Saint Louis sees an increase in average high-temperatures during May, moving from a comfortable 65.1°F (18.4°C) in April to a moderately hot 74.7°F (23.7°C). May's average low-temperature reading in East Saint Louis settles at a mild 57.7°F (14.3°C).Humidity
May and July, with an average relative humidity of 78%, are the most humid months in East Saint Louis.Rainfall
The month with the most rainfall is May, when the rain falls for 17.5 days and typically aggregates up to 4.25" (108mm) of precipitation.Snowfall
In East Saint Louis, snow does not fall in April through October.Daylight
In May, the average length of the day in East Saint Louis is 14h and 17min.On the first day of the month, sunrise is at 6:02 am and sunset at 7:53 pm. On the last day of May, sunrise is at 5:37 am and sunset at 8:18 pm CDT.
Sunshine
In East Saint Louis, the average sunshine in May is 9.5h.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 threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: A maximum daily UV index of 6 during May morphs into the following directions:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. 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. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Frequently asked questions
What is the usual temperature for East Saint Louis in May?
What is the most humid month in East Saint Louis?
What is the average humidity in May in East Saint Louis?
What is the rainiest month in East Saint Louis?
How many days does it rain in May in East Saint Louis?
When it does not snow in East Saint Louis?
What is the average length of the day in May in East Saint Louis?
When is the sunrise / sunset in May in East Saint Louis?
How many hours of sunshine does East Saint Louis have in May?
What is the month with the highest UV index in East Saint Louis?
What is the UV index reading in May in East Saint Louis?
Average temperature in May
East Saint Louis, IL
- Average high temperature in May: 74.7°F
The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (37.8°F).
- Average low temperature in May: 57.7°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 (24.4°F).
Average pressure in May
East Saint Louis, 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
East Saint Louis, IL
- Average wind speed in May: 7.3mph
The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest month (with the lowest average wind speed) is July (5.5mph).
Average humidity in May
East Saint Louis, IL
- Average humidity in May: 78%
The months with the highest relative humidity are May and July (78%).
The month with the lowest relative humidity is October (71%).
Average rainfall in May
East Saint Louis, IL
- Average rainfall in May: 4.25"
The wettest month (with the highest rainfall) is May (4.25").
The driest month (with the least rainfall) is February (1.89").
Average rainfall days in May
East Saint Louis, IL
- Average rainfall days in May: 17.5 days
The months with the highest number of rainy days are May and July (17.5 days).
The month with the least rainy days is January (8 days).
Average snowfall in May
East Saint Louis, IL
- Average snowfall in May: 0"
The month with the highest snowfall is February (2.64").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in May
East Saint Louis, IL
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (7.3 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
East Saint Louis, 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 3min
The months with the most sunshine are June and July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in May
East Saint Louis, IL
- Average sunshine days in May: 11.2 days
The month with the most sunshine days is December (18.8 days).
The month with the least sunshine days is May (11.2 days).
Average UV index in May
East Saint Louis, 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
East Saint Louis, IL
- Average cloud cover in May: 37
The month with the most cloud cover is January (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in May
East Saint Louis, 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).
East Saint Louis, Illinois, USA
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