Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
In Winchester, the onset of May comes with an increased average high-temperature, moving from April's comfortable 63.5°F (17.5°C) to a pleasant 73°F (22.8°C). Throughout May nights, Winchester experiences a consistent temperature average of 55.9°F (13.3°C).Humidity
In Winchester, Illinois, the average relative humidity in May is 79%.Rainfall
May is the month with the most rainfall. Rain falls for 18.8 days and accumulates 4.02" (102mm) of precipitation.Snowfall
In Winchester, snow does not fall in May through September.Daylight
In May, the average length of the day is 14h and 23min.On the first day of May in Winchester, sunrise is at 6:01 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 5:36 am and sunset at 8:23 pm CDT.
Sunshine
In May, the average sunshine in Winchester is 9.2h.UV index
In May, the average daily maximum UV index in Winchester is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: An average UV index of 5 in May transforms into this advice:
Put precautions into practice - Guidance to elude sunburn is provided. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Frequently asked questions
What is the average May temperature in Winchester?
What is the average humidity in May in Winchester?
What is the wettest month in Winchester?
How much does it rain in Winchester in May?
When it does not snow in Winchester?
Does it snow in Winchester in May?
How many hours of daylight does Winchester have in May?
What time are sunrise and sunset in May in Winchester?
How many hours of sunshine does Winchester have in May?
What is the UV index intensity in May in Winchester?
Average temperature in May
Winchester, IL
- Average high temperature in May: 73°F
The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (33.8°F).
- Average low temperature in May: 55.9°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 (21.6°F).
Average pressure in May
Winchester, 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
Winchester, IL
- Average wind speed in May: 8mph
The windiest months (with the highest average wind speed) are January and April (9.9mph).
The calmest month (with the lowest average wind speed) is July (6mph).
Average humidity in May
Winchester, 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
Winchester, IL
- Average rainfall in May: 4.02"
The wettest month (with the highest rainfall) is May (4.02").
The driest months (with the least rainfall) are January, February and December (1.73").
Average rainfall days in May
Winchester, IL
- Average rainfall days in May: 18.8 days
The month with the highest number of rainy days is May (18.8 days).
The month with the least rainy days is February (7.2 days).
Average snowfall in May
Winchester, IL
- Average snowfall in May: 0"
The month with the highest snowfall is January (3.46").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Winchester, IL
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (9.8 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
Winchester, IL
- Average daylight in May: 14h and 2min
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 1min
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 18min).
Average sunshine days in May
Winchester, IL
- Average sunshine days in May: 9.8 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is June (8.6 days).
Average UV index in May
Winchester, 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
Winchester, IL
- Average cloud cover in May: 38
The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are June, July, August and September (Cloud cover 30).
Average visibility in May
Winchester, IL
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).
Winchester, Illinois, USA
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