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
Crystal Lawns's transition into May is marked by a rise in the average high-temperature, advancing from a moderate 58.1°F (14.5°C) in April to a pleasant 70.3°F (21.3°C). In May, the recorded average low-temperature is a fresh 52.3°F (11.3°C).Humidity
The average relative humidity in May is 77%.Rainfall
May is the month with the most rainfall. Rain falls for 17.8 days and accumulates 4.41" (112mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
In Crystal Lawns, Illinois, the average length of the day in May is 14h and 32min.On the first day of the month, sunrise is at 5:48 am and sunset at 7:51 pm. On the last day of May, sunrise is at 5:20 am and sunset at 8:19 pm CDT.
Sunshine
In Crystal Lawns, the average sunshine in May is 8.5h.UV index
In May, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: The daily high UV index of 5 during May translates into the following recommendations:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Crystal Lawns in May?
What is the average humidity in May?
What is the rainiest month?
How many days does it rain in May?
When it does not snow?
Does it snow in May?
What is the average length of the day in May?
When is the sunrise / sunset in May in Crystal Lawns?
How long on average sun shines in May?
What is the UV index reading in May?
Average temperature in May
Crystal Lawns, IL
- Average high temperature in May: 70.3°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (29.3°F).
- Average low temperature in May: 52.3°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (17.4°F).
Average pressure in May
Crystal Lawns, IL
- Average pressure in May: 29.96"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in May
Crystal Lawns, IL
- Average wind speed in May: 8.3mph
The windiest month (with the highest average wind speed) is April (9.7mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).
Average humidity in May
Crystal Lawns, IL
- Average humidity in May: 77%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is October (73%).
Average rainfall in May
Crystal Lawns, IL
- Average rainfall in May: 4.41"
The wettest month (with the highest rainfall) is May (4.41").
The driest month (with the least rainfall) is February (1.61").
Average rainfall days in May
Crystal Lawns, IL
- Average rainfall days in May: 17.8 days
The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is February (5.7 days).
Average snowfall in May
Crystal Lawns, IL
- Average snowfall in May: 0"
The month with the highest snowfall is January (4.33").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Crystal Lawns, IL
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (11.9 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
Crystal Lawns, IL
- Average daylight in May: 14h and 3min
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 12min).
- Average sunshine in May: 8h and 3min
The month with the most sunshine is August (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in May
Crystal Lawns, IL
- Average sunshine days in May: 11.6 days
The month with the most sunshine days is November (18.1 days).
The month with the least sunshine days is June (10.4 days).
Average UV index in May
Crystal Lawns, 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
Crystal Lawns, IL
- Average cloud cover in May: 43
The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are August and September (Cloud cover 34).
Average visibility in May
Crystal Lawns, 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).
Crystal Lawns, Illinois, USA
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