May weather forecastPeoria, IL
May
Weather in May
As May arrives, Peoria fully embraces the spring season, transitioning effortlessly into the early inklings of summer. With the consistency of warmer air and extended sunshine hours, plants deluge the city with a profusion of colors. Quite noticeably, this month witnesses the highest rainfall amount for the year, further nurturing the thriving vegetation. Despite the persistent rains, humid conditions are not particularly burdensome owing to the prevalent warm, sunlit weather. The beauty of the city in full bloom tempered with the beginning of summery warmth makes May an appealing time for local festivities and outdoor events.Temperature
Peoria sees an increase in the average high-temperature with the arrival of May, moving from April's refreshing 60.8°F (16°C) to a pleasant 71.6°F (22°C). Peoria experiences a mean temperature of 55°F (12.8°C) during May nights.Humidity
In Peoria, the average relative humidity in May is 78%.Rainfall
May is the month with the most rainfall. Rain falls for 16.8 days and accumulates 2.64" (67mm) of precipitation.Snowfall
In Peoria, Illinois, snow does not fall in May through September.Daylight
The average length of the day in May is 14h and 28min.On the first day of the month, sunrise is at 5:55 am and sunset at 7:54 pm. On the last day of May, sunrise is at 5:29 am and sunset at 8:22 pm CDT.
Sunshine
In May, the average sunshine is 9.1h.UV index
The average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: The maximum UV index of 5 during May leads to these instructions:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Peoria, IL
- Average high temperature in May: 71.6°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (30.7°F).
- Average low temperature in May: 55°F
The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in May
Peoria, IL
- Average pressure in May: 29.95"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in May
Peoria, IL
- Average wind speed in May: 8.8mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in May
Peoria, IL
- Average humidity in May: 78%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (71%).
Average rainfall in May
Peoria, IL
- Average rainfall in May: 2.64"
The wettest month (with the highest rainfall) is May (2.64").
The driest month (with the least rainfall) is January (0.75").
Average rainfall days in May
Peoria, 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 February (4.6 days).
Average snowfall in May
Peoria, IL
- Average snowfall in May: 0"
The month with the highest snowfall is January (2.36").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Peoria, IL
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (9 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
Peoria, IL
- Average daylight in May: 14h and 30min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in May: 9h and 6min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in May
Peoria, IL
- Average sunshine days in May: 11.3 days
The month with the most sunshine days is November (19.8 days).
The month with the least sunshine days is May (11.3 days).
Average UV index in May
Peoria, 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
Peoria, IL
- Average cloud cover in May: 39
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is September (Cloud cover 29).
Average visibility in May
Peoria, 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).
