May weather forecastBartelso, IL
May
Weather in May
The last month of the spring, May, is a warm month in Bartelso, Illinois, with temperature in the range of an average low of 57.7°F (14.3°C) and an average high of 74.7°F (23.7°C).Temperature
May's arrival is marked by an increase in the average high-temperature, moving from a refreshing 64.6°F (18.1°C) in April to a moderately hot 74.7°F (23.7°C). Bartelso records an average nighttime low of 57.7°F (14.3°C) in May.Humidity
The average relative humidity in May is 79%.Rainfall
In Bartelso, during May, the rain falls for 17.9 days and regularly aggregates up to 4.29" (109mm) of precipitation. Throughout the year, there are 157.2 rainfall days, and 36.18" (919mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall.Daylight
In May, the average length of the day is 14h and 17min.On the first day of the month, sunrise is at 5:59 am and sunset at 7:50 pm. On the last day of May, sunrise is at 5:35 am and sunset at 8:15 pm CDT.
Sunshine
In May, the average sunshine is 9.1h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 6 during May leads to these advisories:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Boost your sun resistance with garments that are densely woven yet spacious.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Bartelso, IL
- Average high temperature in May: 74.7°F
The warmest month (with the highest average high temperature) is July (85.1°F).
The month with the lowest average high temperature is January (37.2°F).
- Average low temperature in May: 57.7°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in May
Bartelso, 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
Bartelso, IL
- Average wind speed in May: 7.8mph
The windiest month (with the highest average wind speed) is January (9.8mph).
The calmest month (with the lowest average wind speed) is July (5.7mph).
Average humidity in May
Bartelso, IL
- Average humidity in May: 79%
The months with the highest relative humidity are July and August (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall in May
Bartelso, IL
- Average rainfall in May: 4.29"
The wettest month (with the highest rainfall) is June (4.37").
The driest month (with the least rainfall) is September (1.89").
Average rainfall days in May
Bartelso, IL
- Average rainfall days in May: 17.9 days
The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is January (9.1 days).
Average snowfall in May
Bartelso, IL
- Average snowfall in May: 0"
The month with the highest snowfall is January (2.4").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Bartelso, IL
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (7.5 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
Bartelso, 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 6min
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 30min).
Average sunshine days in May
Bartelso, IL
- Average sunshine days in May: 10.5 days
The month with the most sunshine days is October (18 days).
The month with the least sunshine days is May (10.5 days).
Average UV index in May
Bartelso, 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, November and December (UV index 2).
Average cloud cover in May
Bartelso, IL
- Average cloud cover in May: 39
The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 28).
Average visibility in May
Bartelso, 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).
