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
With the arrival of May, the average high-temperature transitions from a refreshing 64.6°F (18.1°C) in April to a warm 74.5°F (23.6°C). In Centralia, the average low-temperature during the month of May is a mild 57.7°F (14.3°C).Humidity
The months with the highest humidity are May and July, with an average relative humidity of 80%.Rainfall
In Centralia, in May, it is raining for 10.1 days, with typically 0.71" (18mm) of accumulated precipitation. In Centralia, during the entire year, the rain falls for 83.2 days and collects up to 6.81" (173mm) of precipitation.Snowfall
In Centralia, snow does not fall in April through October.Daylight
In Centralia, the average length of the day in May is 14h and 17min.On the first day of the month, sunrise is at 5:58 am and sunset at 7:48 pm. On the last day of May, sunrise is at 5:34 am and sunset at 8:14 pm CDT.
Sunshine
In Centralia, Illinois, the average sunshine in May is 9.1h.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index in Centralia. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for average individuals.Note: The daily high UV index of 6 during May translates into the following recommendations:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Centralia in May?
What are the most humid months in Centralia?
What is the average humidity in May in Centralia?
How much does it rain in Centralia in May?
When it does not snow in Centralia?
How many hours of daylight does Centralia have in May?
When are sunrise and sunset in May in Centralia?
How many hours of sunshine does Centralia have in May?
What are the months with the highest UV index in Centralia?
What is the UV index intensity in May in Centralia?
Average temperature in May
Centralia, IL
- Average high temperature in May: 74.5°F
The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (37.2°F).
- Average low temperature in May: 57.7°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in May
Centralia, 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 (29.93"Hg).
Average wind speed in May
Centralia, IL
- Average wind speed in May: 8mph
The windiest month (with the highest average wind speed) is February (10mph).
The calmest month (with the lowest average wind speed) is July (5.8mph).
Average humidity in May
Centralia, IL
- Average humidity in May: 80%
The months with the highest relative humidity are May and July (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall in May
Centralia, IL
- Average rainfall in May: 0.71"
The wettest months (with the highest rainfall) are April and July (0.75").
The driest month (with the least rainfall) is September (0.24").
Average rainfall days in May
Centralia, IL
- Average rainfall days in May: 10.1 days
The month with the highest number of rainy days is May (10.1 days).
The month with the least rainy days is January (3.7 days).
Average snowfall in May
Centralia, IL
- Average snowfall in May: 0"
The month with the highest snowfall is January (0.28").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in May
Centralia, IL
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (3.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
Centralia, 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 1min
The months with the most sunshine are June and July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in May
Centralia, IL
- Average sunshine days in May: 16.8 days
The months with the most sunshine days are January and December (24.5 days).
The month with the least sunshine days is May (16.8 days).
Average UV index in May
Centralia, 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, November and December (UV index 2).
Average cloud cover in May
Centralia, IL
- Average cloud cover in May: 39
The months with the most cloud cover are January and February (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 28).
Average visibility in May
Centralia, 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).
Centralia, Illinois, USA
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