May weather forecastLibertyville, IL
May
Weather in May
The last month of the spring, May, is a refreshing month in Libertyville, Illinois, with an average temperature ranging between max 64.8°F (18.2°C) and min 49.6°F (9.8°C).Temperature
The start of May is characterized by an increase in the average high-temperature, transitioning from a fresh 53.1°F (11.7°C) in April to a refreshing 64.8°F (18.2°C). The mean low-temperature during May nights is a chilly 49.6°F (9.8°C).Humidity
The average relative humidity in May is 78%.Rainfall
In Libertyville, during May, the rain falls for 16.8 days and regularly aggregates up to 2.4" (61mm) of precipitation. Throughout the year, there are 142.1 rainfall days, and 20.67" (525mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.1 snowfall days, in May, Libertyville aggregates 0.08" (2mm) of snow. Throughout the year, there are 46.3 snowfall days, and 11.02" (280mm) of snow is accumulated.Daylight
In May, the average length of the day is 14h and 37min.On the first day of the month, sunrise is at 5:45 am and sunset at 7:51 pm. On the last day of May, sunrise is at 5:17 am and sunset at 8:21 pm CDT.
Sunshine
In May, the average sunshine is 8.6h.UV index
The average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index of 4 during May translates into these guidelines:
Put precautions into practice - Ensuring skin and eye safety is a necessity. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Libertyville, IL
- Average high temperature in May: 64.8°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (27.9°F).
- Average low temperature in May: 49.6°F
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (17.2°F).
Average pressure in May
Libertyville, IL
- Average pressure in May: 29.96"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in May
Libertyville, IL
- Average wind speed in May: 8.6mph
The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in May
Libertyville, IL
- Average humidity in May: 78%
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is October (74%).
Average rainfall in May
Libertyville, IL
- Average rainfall in May: 2.4"
The wettest month (with the highest rainfall) is June (2.56").
The driest month (with the least rainfall) is December (0.87").
Average rainfall days in May
Libertyville, IL
- Average rainfall days in May: 16.8 days
The month with the highest number of rainy days is July (17.5 days).
The month with the least rainy days is February (4.4 days).
Average snowfall in May
Libertyville, IL
- Average snowfall in May: 0.08"
The month with the highest snowfall is January (3.07").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Libertyville, IL
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (13.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Libertyville, IL
- Average daylight in May: 14h and 36min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in May: 8h and 36min
The months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The months with the least sunshine are January and February (Average sunshine: 3h and 48min).
Average sunshine days in May
Libertyville, IL
- Average sunshine days in May: 11.8 days
The month with the most sunshine days is November (17 days).
The month with the least sunshine days is July (10.8 days).
Average UV index in May
Libertyville, IL
- Average UV index in May: 4
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in May
Libertyville, IL
- Average cloud cover in May: 42
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in May
Libertyville, 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).
