May weather forecastFlanagan, IL
May
Weather in May
May, the last month of the spring in Flanagan, is a pleasant month, with temperature in the range of an average high of 71.2°F (21.8°C) and an average low of 54.7°F (12.6°C).Temperature
May brings a rise in the average high-temperature, transitioning from April's moderate 59.7°F (15.4°C) to an agreeable 71.2°F (21.8°C). During May, the nighttime temperature in Flanagan averages of 54.7°F (12.6°C).Humidity
In Flanagan, the average relative humidity in May is 76%.Rainfall
The month with the most rainfall in Flanagan is May, when the rain falls for 16.8 days and typically aggregates up to 2.44" (62mm) of precipitation.Snowfall
In Flanagan, Illinois, snow does not fall in May through September.Daylight
In Flanagan, Illinois, the average length of the day in May is 14h and 29min.On the first day of the month, sunrise is at 5:52 am and sunset at 7:52 pm. On the last day of May, sunrise is at 5:25 am and sunset at 8:20 pm CDT.
Sunshine
In Flanagan, the average sunshine in May is 8.9h.UV index
In May, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: A daily maximum UV index of 5 in May translates into the following instructions:
Be vigilant - A duty to shield skin and eyes from injury exists. To guard against the harmful effects of the Sun, minimize exposure during midday. Enhance your sun protection with tightly woven, yet airy clothing.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Flanagan, IL
- Average high temperature in May: 71.2°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (30.2°F).
- Average low temperature in May: 54.7°F
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).
Average pressure in May
Flanagan, IL
- Average pressure in May: 29.96"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in May
Flanagan, IL
- Average wind speed in May: 9mph
The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity in May
Flanagan, IL
- Average humidity in May: 76%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (71%).
Average rainfall in May
Flanagan, IL
- Average rainfall in May: 2.44"
The wettest month (with the highest rainfall) is May (2.44").
The driest months (with the least rainfall) are January and February (0.71").
Average rainfall days in May
Flanagan, 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 (4.3 days).
Average snowfall in May
Flanagan, IL
- Average snowfall in May: 0"
The month with the highest snowfall is January (1.73").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Flanagan, IL
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (10.2 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
Flanagan, IL
- Average daylight in May: 14h and 30min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in May: 8h and 54min
The months with the most sunshine are June and August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in May
Flanagan, IL
- Average sunshine days in May: 11.6 days
The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is July (11.3 days).
Average UV index in May
Flanagan, IL
- Average UV index in May: 5
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in May
Flanagan, IL
- Average cloud cover in May: 41
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is September (Cloud cover 32).
Average visibility in May
Flanagan, IL
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
