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
The shift from April to May brings an increase in the average high-temperature, moving from a refreshing 63.3°F (17.4°C) to a pleasant 72.9°F (22.7°C). May sees the temperature falling to a mean low of 56.3°F (13.5°C).Humidity
In Alexander, the average relative humidity in May is 78%.Rainfall
In May, in Alexander, the rain falls for 15.4 days. Throughout May, 2.2" (56mm) of precipitation is accumulated. Throughout the year, in Alexander, Illinois, there are 126.6 rainfall days, and 17.95" (456mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall.Daylight
In May, the average length of the day is 14h and 23min.On the first day of May, sunrise is at 5:59 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 5:34 am and sunset at 8:21 pm CDT.
Sunshine
In May, the average sunshine in Alexander is 9.1h.UV index
In May, the average daily maximum UV index in Alexander is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the average person.Note: A maximum UV index of 5 in May translates into the following recommendations:
Exercise prevention - Precautions against solar damage are endorsed. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are May temperatures in Alexander?
What is the average humidity in May in Alexander?
How many days does it rain in May in Alexander?
When it does not snow in Alexander?
Does it snow in Alexander in May?
How many hours of daylight does Alexander have in May?
What time are sunrise and sunset in May in Alexander?
How many hours of sunshine does Alexander have in May?
What is the UV index reading in May in Alexander?
Average temperature in May
Alexander, IL
- Average high temperature in May: 72.9°F
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (33.6°F).
- Average low temperature in May: 56.3°F
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (21.4°F).
Average pressure in May
Alexander, IL
- Average pressure in May: 29.95"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in May
Alexander, IL
- Average wind speed in May: 8.3mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is July (6.1mph).
Average humidity in May
Alexander, IL
- Average humidity in May: 78%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall in May
Alexander, IL
- Average rainfall in May: 2.2"
The wettest month (with the highest rainfall) is June (2.36").
The driest months (with the least rainfall) are February and December (0.79").
Average rainfall days in May
Alexander, IL
- Average rainfall days in May: 15.4 days
The month with the highest number of rainy days is May (15.4 days).
The month with the least rainy days is January (5.2 days).
Average snowfall in May
Alexander, IL
- Average snowfall in May: 0"
The month with the highest snowfall is January (1.57").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Alexander, IL
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (7.6 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
Alexander, IL
- Average daylight in May: 14h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in May: 9h and 1min
The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in May
Alexander, IL
- Average sunshine days in May: 14.3 days
The month with the most sunshine days is November (20.9 days).
The month with the least sunshine days is July (12.9 days).
Average UV index in May
Alexander, IL
- Average UV index in May: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in May
Alexander, IL
- Average cloud cover in May: 39
The month with the most cloud cover is January (Cloud cover 55).
The months with the least cloud cover are August and September (Cloud cover 30).
Average visibility in May
Alexander, 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).
Alexander, Illinois, USA
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