May weather forecastButler, IL
May
Weather in May
May, the last month of the spring in Butler, is a moderately hot month, with an average temperature ranging between min 56.8°F (13.8°C) and max 73.6°F (23.1°C).Temperature
Butler sees a rise in temperature during May, with average high-temperatures transitioning from a refreshing 63.7°F (17.6°C) in April to a moderately hot 73.6°F (23.1°C). In the month of May, Butler experiences an average low-temperature of 56.8°F (13.8°C).Humidity
The average relative humidity in May is 79%.Rainfall
In May, the rain falls for 16.8 days. Throughout May, 2.76" (70mm) of precipitation is accumulated. In Butler, during the entire year, the rain falls for 138.5 days and collects up to 24.33" (618mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
In Butler, Illinois, the average length of the day in May is 14h and 20min.On the first day of May, sunrise is at 5:58 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 5:33 am and sunset at 8:18 pm CDT.
Sunshine
In Butler, the average sunshine in May is 9.2h.UV index
In Butler, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: A daily high UV index of 5 in May leads to these guidelines:
Guard yourself - Precautionary measures against sun damage are advocated. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. 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
Butler, IL
- Average high temperature in May: 73.6°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (35.4°F).
- Average low temperature in May: 56.8°F
The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).
Average pressure in May
Butler, 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 (29.92"Hg).
Average wind speed in May
Butler, IL
- Average wind speed in May: 8.1mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is July (5.9mph).
Average humidity in May
Butler, IL
- Average humidity in May: 79%
The month with the highest relative humidity is July (82%).
The month with the lowest relative humidity is October (71%).
Average rainfall in May
Butler, IL
- Average rainfall in May: 2.76"
The wettest month (with the highest rainfall) is June (3.35").
The driest month (with the least rainfall) is February (1.34").
Average rainfall days in May
Butler, IL
- Average rainfall days in May: 16.8 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (7 days).
Average snowfall in May
Butler, IL
- Average snowfall in May: 0"
The month with the highest snowfall is February (1.81").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in May
Butler, IL
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (6.2 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
Butler, IL
- Average daylight in May: 14h and 18min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in May: 9h and 12min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in May
Butler, IL
- Average sunshine days in May: 11.8 days
The month with the most sunshine days is October (19.8 days).
The month with the least sunshine days is May (11.8 days).
Average UV index in May
Butler, IL
- Average UV index in May: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in May
Butler, IL
- Average cloud cover in May: 39
The month with the most cloud cover is January (Cloud cover 53).
The months with the least cloud cover are June and September (Cloud cover 29).
Average visibility in May
Butler, IL
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).
