May weather forecastSmithshire, IL
May
Weather in May
The last month of the spring, May, is an agreeable month in Smithshire, Illinois, with an average temperature varying between 54.1°F (12.3°C) and 70.9°F (21.6°C).Temperature
As April gives way to May, the average high-temperature displays an increase, moving from a refreshing 60.4°F (15.8°C) to a pleasant 70.9°F (21.6°C). Nightly temperatures in Smithshire drop to an average low of 54.1°F (12.3°C) in May.Humidity
In Smithshire, the average relative humidity in May is 79%.Rainfall
The month with the most rainfall in Smithshire is May, when the rain falls for 19 days and typically aggregates up to 4.25" (108mm) of precipitation.Snowfall
In Smithshire, Illinois, snow does not fall in May through September.Daylight
In Smithshire, the average length of the day in May is 14h and 29min.On the first day of May, sunrise is at 6:00 am and sunset at 7:59 pm. On the last day of the month, sunrise is at 5:33 am and sunset at 8:27 pm CDT.
Sunshine
The average sunshine in May is 8.9h.UV index
The average daily maximum UV index in May in Smithshire is 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for average individuals.Note: A maximum high UV index of 5 in May translates into the following recommendations:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Smithshire, IL
- Average high temperature in May: 70.9°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in May: 54.1°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (17.6°F).
Average pressure in May
Smithshire, IL
- Average pressure in May: 29.94"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in May
Smithshire, IL
- Average wind speed in May: 9mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).
Average humidity in May
Smithshire, IL
- Average humidity in May: 79%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (71%).
Average rainfall in May
Smithshire, IL
- Average rainfall in May: 4.25"
The wettest month (with the highest rainfall) is May (4.25").
The driest month (with the least rainfall) is January (1.46").
Average rainfall days in May
Smithshire, IL
- Average rainfall days in May: 19 days
The month with the highest number of rainy days is May (19 days).
The month with the least rainy days is February (5.8 days).
Average snowfall in May
Smithshire, 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
Smithshire, IL
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (10.9 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
Smithshire, IL
- Average daylight in May: 14h and 30min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in May: 8h and 54min
The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in May
Smithshire, IL
- Average sunshine days in May: 9.9 days
The month with the most sunshine days is November (18 days).
The month with the least sunshine days is June (9.2 days).
Average UV index in May
Smithshire, IL
- Average UV index in May: 5
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in May
Smithshire, IL
- Average cloud cover in May: 41
The month with the most cloud cover is January (Cloud cover 57).
The months with the least cloud cover are August and September (Cloud cover 30).
Average visibility in May
Smithshire, IL
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).





