May weather forecastHanover Park, IL
May
Weather in May
May, the last month of the spring in Hanover Park, is a pleasant month, with an average temperature ranging between min 51.1°F (10.6°C) and max 68°F (20°C).Temperature
May's onset brings a temperature rise, moving from a mild 55.8°F (13.2°C) in April to a pleasant 68°F (20°C). An average low-temperature of 51.1°F (10.6°C) is observed during the May nights.Humidity
In Hanover Park, Illinois, the average relative humidity in May is 77%.Rainfall
The month with the most rainfall is May, when the rain falls for 16.8 days and typically aggregates up to 2.83" (72mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.1 snowfall days, in May, Hanover Park aggregates 0.04" (1mm) of snow. In Hanover Park, during the entire year, snow falls for 46.4 days and aggregates up to 13.03" (331mm) of snow.Daylight
In May, the average length of the day is 14h and 35min.On the first day of the month, sunrise is at 5:47 am and sunset at 7:51 pm. On the last day of May, sunrise is at 5:19 am and sunset at 8:21 pm CDT.
Sunshine
The average sunshine in May is 8.2h.UV index
The average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: In May, the maximum UV index of 5 translates into these guidelines:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Hanover Park, IL
- Average high temperature in May: 68°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (27.7°F).
- Average low temperature in May: 51.1°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (16.3°F).
Average pressure in May
Hanover Park, 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
Hanover Park, IL
- Average wind speed in May: 8.2mph
The windiest month (with the highest average wind speed) is January (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in May
Hanover Park, IL
- Average humidity in May: 77%
The months with the highest relative humidity are January and February (83%).
The month with the lowest relative humidity is October (74%).
Average rainfall in May
Hanover Park, IL
- Average rainfall in May: 2.83"
The wettest month (with the highest rainfall) is May (2.83").
The driest month (with the least rainfall) is December (1.02").
Average rainfall days in May
Hanover Park, IL
- Average rainfall days in May: 16.8 days
The month with the highest number of rainy days is July (17.4 days).
The month with the least rainy days is February (4.8 days).
Average snowfall in May
Hanover Park, IL
- Average snowfall in May: 0.04"
The month with the highest snowfall is January (3.39").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Hanover Park, IL
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (12.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Hanover Park, 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 12min
The months with the most sunshine are July and August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in May
Hanover Park, IL
- Average sunshine days in May: 11.4 days
The month with the most sunshine days is November (17.6 days).
The month with the least sunshine days is July (10.9 days).
Average UV index in May
Hanover Park, 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 and December (UV index 1).
Average cloud cover in May
Hanover Park, IL
- Average cloud cover in May: 44
The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are July, August and September (Cloud cover 33).
Average visibility in May
Hanover Park, IL
- Average visibility in May: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).





