May weather forecastSpillertown, IL
May
Weather in May
May, the last month of the spring in Spillertown, is a warm month, with an average temperature ranging between min 58.1°F (14.5°C) and max 75.4°F (24.1°C).Temperature
May's onset is marked by a temperature increase, moving from an enjoyable 66.4°F (19.1°C) in April to a moderately hot 75.4°F (24.1°C). Throughout the month of May, Spillertown witnesses an average temperature of 58.1°F (14.5°C).Humidity
With an average relative humidity of 79%, May is the most humid month in Spillertown.Rainfall
In May, the rain falls for 15.1 days. Throughout May, 2.52" (64mm) of precipitation is accumulated. In Spillertown, during the entire year, the rain falls for 137.6 days and collects up to 23.03" (585mm) of precipitation.Snowfall
May through September are months without snowfall in Spillertown.Daylight
The average length of the day in May is 14h and 13min.On the first day of the month, sunrise is at 5:58 am and sunset at 7:46 pm. On the last day of May, in Spillertown, sunrise is at 5:35 am and sunset at 8:11 pm CDT.
Sunshine
The average sunshine in May in Spillertown is 9.2h.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index in Spillertown, Illinois. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the ordinary person.Note: The UV index of 6 during May translates into the following guidance:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Spillertown, IL
- Average high temperature in May: 75.4°F
The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (39.6°F).
- Average low temperature in May: 58.1°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).
Average pressure in May
Spillertown, IL
- Average pressure in May: 29.97"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in May
Spillertown, IL
- Average wind speed in May: 7.6mph
The windiest months (with the highest average wind speed) are January and February (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).
Average humidity in May
Spillertown, IL
- Average humidity in May: 79%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (71%).
Average rainfall in May
Spillertown, IL
- Average rainfall in May: 2.52"
The wettest month (with the highest rainfall) is April (3.11").
The driest month (with the least rainfall) is September (1.1").
Average rainfall days in May
Spillertown, IL
- Average rainfall days in May: 15.1 days
The month with the highest number of rainy days is July (15.3 days).
The month with the least rainy days is November (7.8 days).
Average snowfall in May
Spillertown, IL
- Average snowfall in May: 0"
The months with the highest snowfall are January and February (0.94").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Spillertown, IL
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (4.3 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
Spillertown, IL
- Average daylight in May: 14h and 12min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in May: 9h and 12min
The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in May
Spillertown, IL
- Average sunshine days in May: 13.3 days
The month with the most sunshine days is October (20.6 days).
The month with the least sunshine days is July (12.9 days).
Average UV index in May
Spillertown, 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 and December (UV index 2).
Average cloud cover in May
Spillertown, IL
- Average cloud cover in May: 39
The month with the most cloud cover is February (Cloud cover 51).
The months with the least cloud cover are June, August and September (Cloud cover 28).
Average visibility in May
Spillertown, 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).
