Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average snowfall in April
- Average snowfall days in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
In Winchester, the onset of April comes with an increased average high-temperature, moving from March's cool 51.8°F (11°C) to an enjoyable 63.5°F (17.5°C). Throughout April, the nighttime temperature averages to a chilly 46°F (7.8°C).Humidity
In Winchester, the average relative humidity in April is 75%.Rainfall
In Winchester, during April, the rain falls for 15.9 days and regularly aggregates up to 3.54" (90mm) of precipitation. Throughout the year, there are 155.4 rainfall days, and 31.69" (805mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. April is the last month it regularly snows. During 0.7 snowfall days, in April, Winchester aggregates 0.12" (3mm) of snow. In Winchester, during the entire year, snow falls for 30.2 days and aggregates up to 10.75" (273mm) of snow.Daylight
In Winchester, the average length of the day in April is 13h and 17min.On the first day of April, sunrise is at 6:44 am and sunset at 7:26 pm. On the last day of the month, sunrise is at 6:02 am and sunset at 7:55 pm CDT.
Sunshine
The average sunshine in April is 8.3h.UV index
In April, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: The daily maximum UV index of 4 in April interprets into the following advice:
Take precautions - Protection against sun damage is advised. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. To cut down UV radiation exposure by about half, sport a wide-brim hat. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Winchester in April?
What is the average humidity in April?
How many days does it rain in April in Winchester?
What is the last month it snows?
What is the average length of the day in April?
What time are sunrise and sunset in April?
How long on average sun shines in April?
What is the UV index intensity in April?
Average temperature in April
Winchester, IL
- Average high temperature in April: 63.5°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 April: 46°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 April
Winchester, IL
- Average pressure in April: 29.93"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 April
Winchester, IL
- Average wind speed in April: 9.9mph
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 April
Winchester, IL
- Average humidity in April: 75%
The month with the highest relative humidity is July (82%).
The month with the lowest relative humidity is October (71%).
Average rainfall in April
Winchester, IL
- Average rainfall in April: 3.54"
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 April
Winchester, IL
- Average rainfall days in April: 15.9 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 April
Winchester, IL
- Average snowfall in April: 0.12"
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 April
Winchester, IL
- Average snowfall days in April: 0.7 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 April /
Average sunshine in April
Winchester, IL
- Average daylight in April: 13h 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 April: 8h and 2min
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 April
Winchester, IL
- Average sunshine days in April: 11.7 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 April
Winchester, IL
- Average UV index in April: 4
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 April
Winchester, IL
- Average cloud cover in April: 43
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 April
Winchester, IL
- Average visibility in April: 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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