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
As April transitions into May, Oregon sees a rise in the average high-temperature, moving from a refreshing 56.7°F (13.7°C) to an agreeable 68.7°F (20.4°C). An average low-temperature of 52°F (11.1°C) marks the month of May.Humidity
In May, the average relative humidity is 78%.Rainfall
In Oregon, in May, it is raining for 17.7 days, with typically 2.76" (70mm) of accumulated precipitation. In Oregon, during the entire year, the rain falls for 141.2 days and collects up to 20.31" (516mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
In Oregon, the average length of the day in May is 14h and 35min.On the first day of the month, sunrise is at 5:52 am and sunset at 7:56 pm. On the last day of May, in Oregon, sunrise is at 5:24 am and sunset at 8:26 pm CDT.
Sunshine
In Oregon, Illinois, the average sunshine in May is 8.3h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.Note: A maximum UV index of 5 in May translates into the following recommendations:
Take precautions - Protection against sun damage is advised. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are May temperatures?
What is the average humidity in May?
How many days does it rain in May?
When it does not snow?
Does it snow in May?
What is the average length of the day in May?
When is the sunrise / sunset in May?
How many hours of sunshine does Oregon have in May?
When is the highest UV index?
What is the UV index reading in May?
Average temperature in May
Oregon, IL
- Average high temperature in May: 68.7°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 (26.8°F).
- Average low temperature in May: 52°F
The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (14.2°F).
Average pressure in May
Oregon, IL
- Average pressure in May: 29.96"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
Oregon, 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 (6.4mph).
Average humidity in May
Oregon, IL
- Average humidity in May: 78%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (74%).
Average rainfall in May
Oregon, IL
- Average rainfall in May: 2.76"
The wettest month (with the highest rainfall) is June (2.91").
The driest months (with the least rainfall) are January and February (0.94").
Average rainfall days in May
Oregon, IL
- Average rainfall days in May: 17.7 days
The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is February (4.6 days).
Average snowfall in May
Oregon, IL
- Average snowfall in May: 0"
The month with the highest snowfall is January (2.48").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Oregon, IL
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (12.2 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
Oregon, 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 12min).
- Average sunshine in May: 8h and 2min
The month with the most sunshine is July (Average sunshine: 9h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in May
Oregon, IL
- Average sunshine days in May: 10.9 days
The month with the most sunshine days is November (17.6 days).
The month with the least sunshine days is June (10.4 days).
Average UV index in May
Oregon, 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
Oregon, IL
- Average cloud cover in May: 45
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is September (Cloud cover 34).
Average visibility in May
Oregon, IL
- Average visibility in May: 6mi
The months with the highest visibility are March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, February, July and August (5mi).
Oregon, Illinois, USA
Weather forecast for your location
2. Allow the app to use your location