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
The start of May brings a shift in the average high-temperature, increasing from April's refreshing 64.4°F (18°C) to a warm 74.1°F (23.4°C). Throughout May, Wood River's nights cool down to an average of 57°F (13.9°C).Humidity
In Wood River, the average relative humidity in May is 79%.Rainfall
The month with the most rainfall is May, when the rain falls for 16.6 days and typically aggregates up to 3.07" (78mm) of precipitation.Snowfall
In Wood River, snow does not fall in May through October.Daylight
In Wood River, the average length of the day in May is 14h and 19min.On the first day of the month, sunrise is at 6:01 am and sunset at 7:53 pm. On the last day of May, sunrise is at 5:37 am and sunset at 8:19 pm CDT.
Sunshine
In May, the average sunshine is 9.3h.UV index
The months with the highest UV index in Wood River are May through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the average person.Note: A maximum high daily UV index of 6 during May translates into the following directions:
Resist extreme sun exposure. Guarding against solar damage is essential. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Frequently asked questions
What are May temperatures in Wood River?
What is the average humidity in May in Wood River?
What is the rainiest month in Wood River?
How much does it rain in Wood River in May?
When it does not snow in Wood River?
Does it snow in Wood River in May?
What is the average length of the day in May in Wood River?
What time are sunrise and sunset in May in Wood River?
How many hours of sunshine does Wood River have in May?
When is the highest UV index in Wood River?
What is the UV index intensity in May in Wood River?
Average temperature in May
Wood River, IL
- Average high temperature in May: 74.1°F
The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is January (36.1°F).
- Average low temperature in May: 57°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure in May
Wood River, IL
- Average pressure in May: 29.95"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in May
Wood River, IL
- Average wind speed in May: 7.6mph
The windiest months (with the highest average wind speed) are January and February (9.6mph).
The calmest month (with the lowest average wind speed) is July (5.7mph).
Average humidity in May
Wood River, IL
- Average humidity in May: 79%
The month with the highest relative humidity is July (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall in May
Wood River, IL
- Average rainfall in May: 3.07"
The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is February (1.14").
Average rainfall days in May
Wood River, IL
- Average rainfall days in May: 16.6 days
The month with the highest number of rainy days is May (16.6 days).
The month with the least rainy days is January (5.6 days).
Average snowfall in May
Wood River, IL
- Average snowfall in May: 0"
The month with the highest snowfall is February (1.61").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Wood River, IL
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (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
Wood River, IL
- Average daylight in May: 14h and 2min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in May: 9h and 2min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 4h and 30min).
Average sunshine days in May
Wood River, IL
- Average sunshine days in May: 12.5 days
The month with the most sunshine days is December (20.4 days).
The month with the least sunshine days is July (12.3 days).
Average UV index in May
Wood River, IL
- Average UV index in May: 6
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in May
Wood River, IL
- Average cloud cover in May: 38
The month with the most cloud cover is January (Cloud cover 51).
The months with the least cloud cover are June, July and August (Cloud cover 29).
Average visibility in May
Wood River, 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).
Wood River, Illinois, USA
Weather forecast for your location
2. Allow the app to use your location
