Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
May's onset brings a temperature rise, moving from a fresh 55°F (12.8°C) in April to a refreshing 66.9°F (19.4°C). Throughout May, an average low-temperature of 49.6°F (9.8°C) is experienced in Apple River.Humidity
The average relative humidity in May is 81%.Rainfall
In May, the rain falls for 17.8 days. Throughout May, 2.91" (74mm) of precipitation is accumulated. In Apple River, Illinois, during the entire year, the rain falls for 140.7 days and collects up to 24.09" (612mm) of precipitation.Snowfall
May through September are months without snowfall in Apple River, Illinois.Daylight
The average length of the day in May in Apple River is 14h and 38min.On the first day of the month, sunrise is at 5:54 am and sunset at 8:00 pm. On the last day of May, in Apple River, sunrise is at 5:25 am and sunset at 8:30 pm CDT.
Sunshine
The average sunshine in May is 8.1h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: During May, 5 as the daily maximum UV index converts into the following advice:
Ensure safety - Sun damage prevention is strongly urged. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Frequently asked questions
What is the temperature in May in Apple River?
What is the average humidity in May in Apple River?
How much does it rain in Apple River in May?
When it does not snow in Apple River?
Does it snow in Apple River in May?
How many hours of daylight does Apple River have in May?
What time are sunrise and sunset in May in Apple River?
How long on average sun shines in May in Apple River?
What are the months with the highest UV index in Apple River?
What is the UV index reading in May in Apple River?
Average temperature in May
Apple River, IL
- Average high temperature in May: 66.9°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 (24.8°F).
- Average low temperature in May: 49.6°F
The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (12°F).
Average pressure in May
Apple River, IL
- Average pressure in May: 29.95"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in May
Apple River, IL
- Average wind speed in May: 8.9mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.7mph).
Average humidity in May
Apple River, IL
- Average humidity in May: 81%
The month with the highest relative humidity is January (88%).
The months with the lowest relative humidity are April, October and November (77%).
Average rainfall in May
Apple River, IL
- Average rainfall in May: 2.91"
The wettest month (with the highest rainfall) is June (3.54").
The driest month (with the least rainfall) is January (1.06").
Average rainfall days in May
Apple River, IL
- Average rainfall days in May: 17.8 days
The months with the highest number of rainy days are May and June (17.8 days).
The month with the least rainy days is February (4.5 days).
Average snowfall in May
Apple River, IL
- Average snowfall in May: 0"
The month with the highest snowfall is January (3.82").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Apple River, IL
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is January (12.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Apple River, IL
- Average daylight in May: 14h and 4min
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 1min
The months with the most sunshine are July and August (Average sunshine: 9h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in May
Apple River, IL
- Average sunshine days in May: 10.8 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is June (10.1 days).
Average UV index in May
Apple River, IL
- Average UV index in May: 5
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in May
Apple River, IL
- Average cloud cover in May: 46
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is September (Cloud cover 34).
Average visibility in May
Apple River, IL
- Average visibility in May: 6mi
The months with the highest visibility are March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, February, July, August and September (5mi).
Apple River, Illinois, USA
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