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
In May, the average high-temperature increases from a refreshing 59.5°F (15.3°C) in April to an agreeable 71.2°F (21.8°C). Throughout May, the nighttime temperature averages to a fresh 54.5°F (12.5°C).Humidity
In May, the average relative humidity is 76%.Rainfall
The month with the most rainfall is May, when the rain falls for 17.3 days and typically aggregates up to 3.19" (81mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
In Clifton, the average length of the day in May is 14h and 29min.On the first day of the month, sunrise is at 5:48 am and sunset at 7:48 pm. On the last day of May, sunrise is at 5:22 am and sunset at 8:17 pm CDT.
Sunshine
The average sunshine in May is 8.7h.UV index
In May, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index of 5 in May converts into the following recommendations:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are May temperatures in Clifton?
What is the average humidity in May?
What is the wettest month?
How much does it rain in May?
When it does not snow?
Does it snow in May?
How many hours of daylight does Clifton have in May?
When is the sunrise / sunset in May?
How many hours of sunshine does Clifton have in May?
What is the UV index reading in May?
Average temperature in May
Clifton, IL
- Average high temperature in May: 71.2°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (30.2°F).
- Average low temperature in May: 54.5°F
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).
Average pressure in May
Clifton, IL
- Average pressure in May: 29.96"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in May
Clifton, IL
- Average wind speed in May: 8.8mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in May
Clifton, IL
- Average humidity in May: 76%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (71%).
Average rainfall in May
Clifton, IL
- Average rainfall in May: 3.19"
The wettest month (with the highest rainfall) is May (3.19").
The driest months (with the least rainfall) are January, February and December (1.06").
Average rainfall days in May
Clifton, IL
- Average rainfall days in May: 17.3 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is February (5.1 days).
Average snowfall in May
Clifton, IL
- Average snowfall in May: 0"
The month with the highest snowfall is February (2.48").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Clifton, IL
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (10.8 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
Clifton, 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 18min).
- Average sunshine in May: 8h and 4min
The month with the most sunshine is June (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in May
Clifton, IL
- Average sunshine days in May: 11.6 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (10 days).
Average UV index in May
Clifton, IL
- Average UV index in May: 5
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in May
Clifton, IL
- Average cloud cover in May: 42
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
Clifton, IL
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
Clifton, Illinois, USA
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