May weather forecastFreeburg, IL
May
Weather in May
The last month of the spring, May, is a moderately hot month in Freeburg, Illinois, with an average temperature varying between 75°F (23.9°C) and 57.9°F (14.4°C).Temperature
May's arrival signals an increase in average high-temperatures, moving from April's refreshing 65.5°F (18.6°C) to a warm 75°F (23.9°C). The average low-temperature, in May, is a refreshing 57.9°F (14.4°C).Humidity
The months with the highest humidity are May and July, with an average relative humidity of 79%.Rainfall
May is the month with the most rainfall. Rain falls for 12.1 days and accumulates 1.34" (34mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
In May, the average length of the day is 14h and 17min.On the first day of May, sunrise is at 6:01 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 5:37 am and sunset at 8:17 pm CDT.
Sunshine
In Freeburg, Illinois, the average sunshine in May is 9.3h.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: In May, a regular UV index of 6 translates into these guidelines:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. 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
Freeburg, IL
- Average high temperature in May: 75°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (38.1°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 (25°F).
Average pressure in May
Freeburg, IL
- Average pressure in May: 29.96"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in May
Freeburg, IL
- Average wind speed in May: 7.4mph
The windiest month (with the highest average wind speed) is January (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (5.6mph).
Average humidity in May
Freeburg, IL
- Average humidity in May: 79%
The months with the highest relative humidity are May and July (79%).
The month with the lowest relative humidity is October (71%).
Average rainfall in May
Freeburg, IL
- Average rainfall in May: 1.34"
The wettest month (with the highest rainfall) is May (1.34").
The driest month (with the least rainfall) is February (0.51").
Average rainfall days in May
Freeburg, IL
- Average rainfall days in May: 12.1 days
The month with the highest number of rainy days is July (12.2 days).
The month with the least rainy days is December (5.3 days).
Average snowfall in May
Freeburg, IL
- Average snowfall in May: 0"
The month with the highest snowfall is January (0.63").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in May
Freeburg, IL
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (4.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
Freeburg, IL
- Average daylight in May: 14h and 18min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in May: 9h and 18min
The months with the most sunshine are June and July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in May
Freeburg, IL
- Average sunshine days in May: 16.1 days
The month with the most sunshine days is January (23.3 days).
The month with the least sunshine days is July (15.1 days).
Average UV index in May
Freeburg, 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
Freeburg, IL
- Average cloud cover in May: 38
The month with the most cloud cover is January (Cloud cover 50).
The months with the least cloud cover are June, July and August (Cloud cover 28).
Average visibility in May
Freeburg, 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).





