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
May brings a temperature increase, with average high-temperatures moving from April's comfortable 63.3°F (17.4°C) to an agreeable 72.9°F (22.7°C). During May nights, Jacksonville records an average temperature of 55.9°F (13.3°C).Humidity
The average relative humidity in May in Jacksonville is 79%.Rainfall
In Jacksonville, Illinois, in May, it is raining for 18 days, with typically 3.46" (88mm) of accumulated precipitation. Throughout the year, in Jacksonville, there are 148.2 rainfall days, and 29.37" (746mm) of precipitation is accumulated.Snowfall
In Jacksonville, snow does not fall in May through September.Daylight
In May, the average length of the day in Jacksonville is 14h and 23min.On the first day of May, sunrise is at 6:00 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 5:34 am and sunset at 8:22 pm CDT.
Sunshine
In Jacksonville, Illinois, the average sunshine in May is 9.3h.UV index
In Jacksonville, the average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum daily UV index of 5 during May translates into the following directions:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Boost your sun resistance with garments that are densely woven yet spacious.
Frequently asked questions
What are May temperatures in Jacksonville?
What is the average humidity in May in Jacksonville?
How many days does it rain in May in Jacksonville?
When it does not snow in Jacksonville?
Does it snow in Jacksonville in May?
How many hours of daylight does Jacksonville have in May?
What time are sunrise and sunset in May in Jacksonville?
How long on average sun shines in May in Jacksonville?
What is the UV index reading in May in Jacksonville?
Average temperature in May
Jacksonville, IL
- Average high temperature in May: 72.9°F
The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in May: 55.9°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°F).
Average pressure in May
Jacksonville, 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
Jacksonville, IL
- Average wind speed in May: 8.2mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is July (6.1mph).
Average humidity in May
Jacksonville, IL
- Average humidity in May: 79%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall in May
Jacksonville, IL
- Average rainfall in May: 3.46"
The wettest month (with the highest rainfall) is June (3.58").
The driest month (with the least rainfall) is December (1.54").
Average rainfall days in May
Jacksonville, IL
- Average rainfall days in May: 18 days
The month with the highest number of rainy days is May (18 days).
The months with the least rainy days are January and February (7.1 days).
Average snowfall in May
Jacksonville, IL
- Average snowfall in May: 0"
The month with the highest snowfall is January (3.58").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Jacksonville, IL
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (9.6 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
Jacksonville, 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 2min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in May
Jacksonville, IL
- Average sunshine days in May: 11 days
The month with the most sunshine days is December (18.5 days).
The month with the least sunshine days is June (10.5 days).
Average UV index in May
Jacksonville, 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
Jacksonville, IL
- Average cloud cover in May: 38
The month with the most cloud cover is January (Cloud cover 53).
The months with the least cloud cover are June, July, August and September (Cloud cover 29).
Average visibility in May
Jacksonville, 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).
Jacksonville, Illinois, USA
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