May weather forecastNaplate, IL
May
Weather in May
The last month of the spring, May, is an agreeable month in Naplate, Illinois, with an average temperature fluctuating between 53.6°F (12°C) and 70.7°F (21.5°C).Temperature
An escalation in the average high-temperature is seen with the onset of May, moving from a mild 58.8°F (14.9°C) in April to a pleasant 70.7°F (21.5°C). Throughout the month of May, the nighttime temperature dips to an average of 53.6°F (12°C).Humidity
The average relative humidity in May is 77%.Rainfall
The month with the most rainfall is May, when the rain falls for 19.4 days and typically aggregates up to 5" (127mm) of precipitation.Snowfall
In Naplate, snow does not fall in May through September.Daylight
The average length of the day in May is 14h and 31min.On the first day of May, sunrise is at 5:51 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 5:24 am and sunset at 8:22 pm CDT.
Sunshine
In Naplate, the average sunshine in May is 8.8h.UV index
The average daily maximum UV index in May in Naplate is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: The average daily UV index of 5 in May transforms into the following instructions:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Naplate, IL
- Average high temperature in May: 70.7°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (29.1°F).
- Average low temperature in May: 53.6°F
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (17.2°F).
Average pressure in May
Naplate, IL
- Average pressure in May: 29.96"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in May
Naplate, IL
- Average wind speed in May: 8.7mph
The windiest month (with the highest average wind speed) is April (10.2mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in May
Naplate, IL
- Average humidity in May: 77%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (72%).
Average rainfall in May
Naplate, IL
- Average rainfall in May: 5"
The wettest month (with the highest rainfall) is May (5").
The driest month (with the least rainfall) is November (1.81").
Average rainfall days in May
Naplate, IL
- Average rainfall days in May: 19.4 days
The month with the highest number of rainy days is July (19.9 days).
The month with the least rainy days is February (6.2 days).
Average snowfall in May
Naplate, IL
- Average snowfall in May: 0"
The month with the highest snowfall is February (5.08").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Naplate, IL
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (12.9 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
Naplate, 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 48min
The month with the most sunshine is June (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in May
Naplate, IL
- Average sunshine days in May: 9.1 days
The month with the most sunshine days is November (17 days).
The month with the least sunshine days is July (7.2 days).
Average UV index in May
Naplate, IL
- Average UV index in May: 5
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in May
Naplate, IL
- Average cloud cover in May: 42
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is September (Cloud cover 32).
Average visibility in May
Naplate, 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).





