May weather forecastWaverly, IL
May
Weather in May
May, the last month of the spring in Waverly, is an agreeable month, with an average temperature fluctuating between 56.3°F (13.5°C) and 72.9°F (22.7°C).Temperature
In Waverly, the onset of May comes with an increased average high-temperature, moving from April's enjoyable 63.3°F (17.4°C) to a pleasant 72.9°F (22.7°C). The average nighttime temperature lowers to a refreshing 56.3°F (13.5°C) throughout May.Humidity
The average relative humidity in May in Waverly, Illinois, is 78%.Rainfall
In Waverly, during May, the rain falls for 15.4 days and regularly aggregates up to 2.2" (56mm) of precipitation. In Waverly, during the entire year, the rain falls for 126.6 days and collects up to 17.95" (456mm) of precipitation.Snowfall
In Waverly, snow does not fall in May through October.Daylight
The average length of the day in May in Waverly, Illinois, is 14h and 22min.On the first day of the month, sunrise is at 5:59 am and sunset at 7:54 pm. On the last day of May, in Waverly, Illinois, sunrise is at 5:34 am and sunset at 8:20 pm CDT.
Sunshine
In May, the average sunshine in Waverly is 9.1h.UV index
The average daily maximum UV index in May in Waverly, Illinois, is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The daily high UV index of 5 in May translates into this advice:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. 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
Waverly, IL
- Average high temperature in May: 72.9°F
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (33.6°F).
- Average low temperature in May: 56.3°F
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (21.4°F).
Average pressure in May
Waverly, IL
- Average pressure in May: 29.95"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in May
Waverly, IL
- Average wind speed in May: 8.3mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is July (6.1mph).
Average humidity in May
Waverly, IL
- Average humidity in May: 78%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall in May
Waverly, IL
- Average rainfall in May: 2.2"
The wettest month (with the highest rainfall) is June (2.36").
The driest months (with the least rainfall) are February and December (0.79").
Average rainfall days in May
Waverly, IL
- Average rainfall days in May: 15.4 days
The month with the highest number of rainy days is May (15.4 days).
The month with the least rainy days is January (5.2 days).
Average snowfall in May
Waverly, IL
- Average snowfall in May: 0"
The month with the highest snowfall is January (1.57").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Waverly, IL
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (7.6 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
Waverly, IL
- Average daylight in May: 14h and 24min
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 24min).
- Average sunshine in May: 9h and 6min
The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in May
Waverly, IL
- Average sunshine days in May: 14.3 days
The month with the most sunshine days is November (20.9 days).
The month with the least sunshine days is July (12.9 days).
Average UV index in May
Waverly, 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
Waverly, IL
- Average cloud cover in May: 39
The month with the most cloud cover is January (Cloud cover 55).
The months with the least cloud cover are August and September (Cloud cover 30).
Average visibility in May
Waverly, 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).





