May weather forecastGenoa, IL
May
Weather in May
The last month of the spring, May, is a pleasant month in Genoa, Illinois, with an average temperature fluctuating between 68.4°F (20.2°C) and 50.9°F (10.5°C).Temperature
As Genoa welcomes May, the average high-temperature sees a rise, transitioning from a refreshing 55.9°F (13.3°C) in April to an agreeable 68.4°F (20.2°C). The average temperature during May nights dips to a cool 50.9°F (10.5°C).Humidity
In Genoa, the average relative humidity in May is 78%.Rainfall
In Genoa, in May, during 15.1 rainfall days, 1.73" (44mm) of precipitation is typically accumulated. Throughout the year, there are 116.8 rainfall days, and 11.69" (297mm) of precipitation is accumulated.Snowfall
In Genoa, snow does not fall in May through September.Daylight
In Genoa, Illinois, the average length of the day in May is 14h and 35min.On the first day of the month, sunrise is at 5:49 am and sunset at 7:54 pm. On the last day of May, sunrise is at 5:21 am and sunset at 8:23 pm CDT.
Sunshine
In May, the average sunshine is 8.3h.UV index
In May, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: In May, the maximum UV index of 5 translates into these guidelines:
Heed the precautions - It is counselled to guard against solar damage. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Boost your sun resistance with garments that are densely woven yet spacious. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Genoa, IL
- Average high temperature in May: 68.4°F
The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (26.8°F).
- Average low temperature in May: 50.9°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (14.2°F).
Average pressure in May
Genoa, IL
- Average pressure in May: 29.96"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in May
Genoa, IL
- Average wind speed in May: 8.5mph
The windiest month (with the highest average wind speed) is April (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in May
Genoa, IL
- Average humidity in May: 78%
The months with the highest relative humidity are January and February (85%).
The month with the lowest relative humidity is October (75%).
Average rainfall in May
Genoa, IL
- Average rainfall in May: 1.73"
The wettest month (with the highest rainfall) is June (1.81").
The driest month (with the least rainfall) is February (0.47").
Average rainfall days in May
Genoa, IL
- Average rainfall days in May: 15.1 days
The months with the highest number of rainy days are May and June (15.1 days).
The month with the least rainy days is February (3.5 days).
Average snowfall in May
Genoa, IL
- Average snowfall in May: 0"
The month with the highest snowfall is January (1.85").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Genoa, IL
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (10.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Genoa, 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 12min).
- Average sunshine in May: 8h and 18min
The months with the most sunshine are June, July and August (Average sunshine: 9h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in May
Genoa, IL
- Average sunshine days in May: 13.3 days
The month with the most sunshine days is October (19.6 days).
The month with the least sunshine days is June (11.2 days).
Average UV index in May
Genoa, IL
- Average UV index in May: 5
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in May
Genoa, IL
- Average cloud cover in May: 44
The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are August and September (Cloud cover 35).
Average visibility in May
Genoa, IL
- Average visibility in May: 6mi
The months with the highest visibility are February, March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, July, August and September (5mi).
