May weather forecastAllens Spring, IL
May
Weather in May
The last month of the spring, May, is a warm month in Allens Spring, Illinois, with an average temperature varying between 75.7°F (24.3°C) and 57.9°F (14.4°C).Temperature
May's onset brings a rise in the average high-temperature, moving from a refreshing 66.6°F (19.2°C) in April to a moderately hot 75.7°F (24.3°C). May in Allens Spring generally records an average low-temperature of 57.9°F (14.4°C).Humidity
March and May, with an average relative humidity of 79%, are the most humid months in Allens Spring, Illinois.Rainfall
In Allens Spring, during May, the rain falls for 12.7 days and regularly aggregates up to 1.34" (34mm) of precipitation. In Allens Spring, during the entire year, the rain falls for 118.3 days and collects up to 13.03" (331mm) of precipitation.Snowfall
In Allens Spring, snow does not fall in April through October.Daylight
The average length of the day in May in Allens Spring is 14h and 11min.On the first day of the month, sunrise is at 5:58 am and sunset at 7:44 pm. On the last day of May, in Allens Spring, sunrise is at 5:35 am and sunset at 8:09 pm CDT.
Sunshine
In Allens Spring, the average sunshine in May is 9.1h.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for the average person.Note: The maximum daily UV index of 6 in May interprets into the following recommendations:
Shield from overexposure. Defense against sun-related harm is required. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Allens Spring, IL
- Average high temperature in May: 75.7°F
The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (40.1°F).
- Average low temperature in May: 57.9°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 (27°F).
Average pressure in May
Allens Spring, 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
Allens Spring, IL
- Average wind speed in May: 7.5mph
The windiest months (with the highest average wind speed) are January and February (9mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity in May
Allens Spring, IL
- Average humidity in May: 79%
The months with the highest relative humidity are March and May (79%).
The month with the lowest relative humidity is October (71%).
Average rainfall in May
Allens Spring, IL
- Average rainfall in May: 1.34"
The wettest month (with the highest rainfall) is June (1.5").
The driest month (with the least rainfall) is September (0.47").
Average rainfall days in May
Allens Spring, IL
- Average rainfall days in May: 12.7 days
The month with the highest number of rainy days is July (13.1 days).
The months with the least rainy days are January, February and December (7.3 days).
Average snowfall in May
Allens Spring, IL
- Average snowfall in May: 0"
The month with the highest snowfall is February (0.67").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in May
Allens Spring, IL
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (3.3 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
Allens Spring, 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 6min
The months with the most sunshine are June and July (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 4h and 36min).
Average sunshine days in May
Allens Spring, IL
- Average sunshine days in May: 15.3 days
The month with the most sunshine days is October (21.5 days).
The month with the least sunshine days is June (14.8 days).
Average UV index in May
Allens Spring, 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
Allens Spring, IL
- Average cloud cover in May: 40
The months with the most cloud cover are January and February (Cloud cover 51).
The month with the least cloud cover is September (Cloud cover 28).
Average visibility in May
Allens Spring, 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).
