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 shift into May is marked by a rise in the average high-temperature, moving from April's comfortable 61.3°F (16.3°C) to an agreeable 72°F (22.2°C). Smithfield experiences an average low-temperature reading of 55°F (12.8°C) throughout May.Humidity
In Smithfield, Illinois, the average relative humidity in May is 78%.Rainfall
The month with the most rainfall is May, when the rain falls for 16.7 days and typically aggregates up to 3.23" (82mm) of precipitation.Snowfall
In Smithfield, Illinois, snow does not fall in May through September.Daylight
The average length of the day in May in Smithfield, Illinois, is 14h and 27min.On the first day of May in Smithfield, Illinois, sunrise is at 5:59 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 5:32 am and sunset at 8:25 pm CDT.
Sunshine
In May, the average sunshine in Smithfield is 9h.UV index
In May, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: In May, the UV index of 5 transforms into the following advice:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Frequently asked questions
What are May temperatures in Smithfield?
What is the average humidity in May in Smithfield?
What is the wettest month in Smithfield?
How many days does it rain in May in Smithfield?
When it does not snow in Smithfield?
Does it snow in Smithfield in May?
What is the average length of the day in May in Smithfield?
When is the sunrise / sunset in May in Smithfield?
How many hours of sunshine does Smithfield have in May?
How high is the UV index in May in Smithfield?
Average temperature in May
Smithfield, IL
- Average high temperature in May: 72°F
The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (31.5°F).
- Average low temperature in May: 55°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (19.4°F).
Average pressure in May
Smithfield, IL
- Average pressure in May: 29.95"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in May
Smithfield, IL
- Average wind speed in May: 8.7mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).
Average humidity in May
Smithfield, IL
- Average humidity in May: 78%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall in May
Smithfield, IL
- Average rainfall in May: 3.23"
The wettest month (with the highest rainfall) is May (3.23").
The driest month (with the least rainfall) is December (0.94").
Average rainfall days in May
Smithfield, IL
- Average rainfall days in May: 16.7 days
The month with the highest number of rainy days is May (16.7 days).
The month with the least rainy days is February (4.7 days).
Average snowfall in May
Smithfield, IL
- Average snowfall in May: 0"
The month with the highest snowfall is January (3.35").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Smithfield, IL
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (9.4 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
Smithfield, IL
- Average daylight in May: 14h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in May: 9h and 0min
The months with the most sunshine are June and July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in May
Smithfield, 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 June (11.1 days).
Average UV index in May
Smithfield, 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, February, November and December (UV index 2).
Average cloud cover in May
Smithfield, IL
- Average cloud cover in May: 40
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is September (Cloud cover 29).
Average visibility in May
Smithfield, 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).
Smithfield, Illinois, USA
Weather forecast for your location
2. Allow the app to use your location
