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
As Grand Chain welcomes May, the average high-temperature sees a rise, transitioning from an enjoyable 66.6°F (19.2°C) in April to a warm 75.7°F (24.3°C). Grand Chain's average low-temperature in the month of May is recorded at a refreshing 57.9°F (14.4°C).Humidity
The months with the highest humidity are March and May, with an average relative humidity of 79%.Rainfall
In Grand Chain, in May, during 12.7 rainfall days, 1.34" (34mm) of precipitation is typically accumulated. Throughout the year, in Grand Chain, there are 118.3 rainfall days, and 13.03" (331mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall in Grand Chain.Daylight
In May, the average length of the day is 14h and 11min.On the first day of May in Grand Chain, Illinois, sunrise is at 6:00 am and sunset at 7:45 pm. On the last day of the month, sunrise is at 5:37 am and sunset at 8:10 pm CDT.
Sunshine
In May, the average sunshine is 9.1h.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index in Grand Chain. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the ordinary person.Note: The average daily UV index of 6 in May transforms into the following instructions:
Inhibit overexposure. Warding off sun damage is of utmost importance. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Frequently asked questions
What is the average May temperature in Grand Chain?
What is the most humid month in Grand Chain?
What is the average humidity in May in Grand Chain?
How much does it rain in Grand Chain in May?
When it does not snow in Grand Chain?
What is the average length of the day in May in Grand Chain?
When is the sunrise / sunset in May in Grand Chain?
How long on average sun shines in May in Grand Chain?
When is the highest UV index in Grand Chain?
What is the UV index intensity in May in Grand Chain?
Average temperature in May
Grand Chain, IL
- Average high temperature in May: 75.7°F
The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (40.1°F).
- Average low temperature in May: 57.9°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 (27°F).
Average pressure in May
Grand Chain, IL
- Average pressure in May: 29.97"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in May
Grand Chain, IL
- Average wind speed in May: 7.5mph
The windiest months (with the highest average wind speed) are January and February (9mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity in May
Grand Chain, IL
- Average humidity in May: 79%
The months with the highest relative humidity are March and May (79%).
The month with the lowest relative humidity is October (71%).
Average rainfall in May
Grand Chain, IL
- Average rainfall in May: 1.34"
The wettest month (with the highest rainfall) is June (1.5").
The driest month (with the least rainfall) is September (0.47").
Average rainfall days in May
Grand Chain, IL
- Average rainfall days in May: 12.7 days
The month with the highest number of rainy days is July (13.1 days).
The months with the least rainy days are January, February and December (7.3 days).
Average snowfall in May
Grand Chain, IL
- Average snowfall in May: 0"
The month with the highest snowfall is February (0.67").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in May
Grand Chain, IL
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (3.3 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
Grand Chain, IL
- Average daylight in May: 14h and 1min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in May: 9h and 1min
The months with the most sunshine are June and July (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 4h and 36min).
Average sunshine days in May
Grand Chain, IL
- Average sunshine days in May: 15.3 days
The month with the most sunshine days is October (21.5 days).
The month with the least sunshine days is June (14.8 days).
Average UV index in May
Grand Chain, 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
Grand Chain, IL
- Average cloud cover in May: 40
The months with the most cloud cover are January and February (Cloud cover 51).
The month with the least cloud cover is September (Cloud cover 28).
Average visibility in May
Grand Chain, 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).
Grand Chain, Illinois, USA
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