May weather forecastHanover, IL
May
Weather in May
The last month of the spring, May, is an agreeable month in Hanover, Illinois, with temperature in the range of an average low of 50.7°F (10.4°C) and an average high of 68.2°F (20.1°C).Temperature
Hanover's weather shows a temperature rise with the arrival of May, moving from a mild 56.1°F (13.4°C) in April to an agreeable 68.2°F (20.1°C). Nighttime temperature experiences an average drop to a fresh 50.7°F (10.4°C) in May.Humidity
In Hanover, Illinois, the average relative humidity in May is 80%.Rainfall
May is the month with the most rainfall. Rain falls for 19.8 days and accumulates 4.13" (105mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
In Hanover, the average length of the day in May is 14h and 37min.On the first day of the month, sunrise is at 5:55 am and sunset at 8:00 pm. On the last day of May, in Hanover, sunrise is at 5:27 am and sunset at 8:30 pm CDT.
Sunshine
In Hanover, the average sunshine in May is 8.4h.UV index
In May, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index of 5 during May translates into the following directions:
Exercise caution. Those with pale skin may experience burns in less than half an hour. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Hanover, IL
- Average high temperature in May: 68.2°F
The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (25.7°F).
- Average low temperature in May: 50.7°F
The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (13.1°F).
Average pressure in May
Hanover, IL
- Average pressure in May: 29.95"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in May
Hanover, IL
- Average wind speed in May: 8.8mph
The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in May
Hanover, IL
- Average humidity in May: 80%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is October (75%).
Average rainfall in May
Hanover, IL
- Average rainfall in May: 4.13"
The wettest month (with the highest rainfall) is May (4.13").
The driest month (with the least rainfall) is January (1.22").
Average rainfall days in May
Hanover, IL
- Average rainfall days in May: 19.8 days
The month with the highest number of rainy days is May (19.8 days).
The month with the least rainy days is February (4.5 days).
Average snowfall in May
Hanover, IL
- Average snowfall in May: 0"
The month with the highest snowfall is January (4.61").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Hanover, IL
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (10.6 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
Hanover, 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 24min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in May
Hanover, IL
- Average sunshine days in May: 9.5 days
The month with the most sunshine days is November (19 days).
The month with the least sunshine days is May (9.5 days).
Average UV index in May
Hanover, IL
- Average UV index in May: 5
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in May
Hanover, IL
- Average cloud cover in May: 44
The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are August and September (Cloud cover 32).
Average visibility in May
Hanover, IL
- Average visibility in May: 6mi
The months with the highest visibility are February, March, April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January and July (5mi).
