May weather forecastLansing, IL
May
Weather in May
The last month of the spring, May, is a refreshing month in Lansing, Illinois, with an average temperature fluctuating between 52°F (11.1°C) and 66.7°F (19.3°C).Temperature
With the beginning of May, Lansing's average high-temperature sees an increase, transitioning from a fresh 55°F (12.8°C) in April to a comfortable 66.7°F (19.3°C). Lansing, during the month of May, experiences an average low-temperature of 52°F (11.1°C).Humidity
The average relative humidity in May is 77%.Rainfall
In Lansing, in May, it is raining for 16.6 days, with typically 3.27" (83mm) of accumulated precipitation. Throughout the year, there are 150.7 rainfall days, and 25.31" (643mm) of precipitation is accumulated.Snowfall
In Lansing, snow does not fall in May through September.Daylight
In May, the average length of the day is 14h and 32min.On the first day of the month, sunrise is at 5:45 am and sunset at 7:48 pm. On the last day of May, sunrise is at 5:18 am and sunset at 8:17 pm CDT.
Sunshine
In May, the average sunshine is 8.7h.UV index
The average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: In May, a daily UV index of 5 turns into the following recommendations:
Make use of precautions - It is urged to ward off sun damage. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Lansing, IL
- Average high temperature in May: 66.7°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in May: 52°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (19°F).
Average pressure in May
Lansing, IL
- Average pressure in May: 29.97"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in May
Lansing, 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
Lansing, 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 (72%).
Average rainfall in May
Lansing, IL
- Average rainfall in May: 3.27"
The wettest month (with the highest rainfall) is June (3.39").
The driest month (with the least rainfall) is January (1.14").
Average rainfall days in May
Lansing, IL
- Average rainfall days in May: 16.6 days
The month with the highest number of rainy days is July (18.4 days).
The month with the least rainy days is February (5.5 days).
Average snowfall in May
Lansing, IL
- Average snowfall in May: 0"
The month with the highest snowfall is February (3.5").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Lansing, IL
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (12.5 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
Lansing, IL
- Average daylight in May: 14h and 30min
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 42min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in May
Lansing, IL
- Average sunshine days in May: 12.3 days
The month with the most sunshine days is November (17 days).
The month with the least sunshine days is July (9.9 days).
Average UV index in May
Lansing, 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
Lansing, IL
- Average cloud cover in May: 42
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in May
Lansing, 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).





