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
April's arrival brings a change in high-temperatures, moving from a cool 54.5°F (12.5°C) in March to an enjoyable 65.5°F (18.6°C). April nights in Swansea, Illinois, cool down to an average low-temperature of 47.8°F (8.8°C).Humidity
In April, the average relative humidity is 77%.Rainfall
In Swansea, in April, during 15.8 rainfall days, 3.78" (96mm) of precipitation is typically accumulated. In Swansea, during the entire year, the rain falls for 147.1 days and collects up to 35.43" (900mm) of precipitation.Snowfall
In Swansea, snow does not fall in April through October.Daylight
In Swansea, the average length of the day in April is 13h and 14min.On the first day of April in Swansea, sunrise is at 6:43 am and sunset at 7:23 pm. On the last day of the month, sunrise is at 6:02 am and sunset at 7:51 pm CDT.
Sunshine
In April, the average sunshine in Swansea is 8.3h.UV index
In Swansea, the average daily maximum UV index in April is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index of 4 during April translates into the following directions:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Frequently asked questions
What is the average April temperature in Swansea?
What is the average humidity in April in Swansea?
How many days does it rain in April in Swansea?
When it does not snow in Swansea?
Does it snow in Swansea in April?
What is the average length of the day in April in Swansea?
When are sunrise and sunset in April in Swansea?
How long on average sun shines in April in Swansea?
What is the UV index intensity in April in Swansea?
Average temperature in April
Swansea, IL
- Average high temperature in April: 65.5°F
The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is January (37.8°F).
- Average low temperature in April: 47.8°F
The month with the highest average low temperature is July (68.4°F).
The coldest month (with the lowest average low temperature) is January (24.8°F).
Average pressure in April
Swansea, IL
- Average pressure in April: 29.94"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in April
Swansea, IL
- Average wind speed in April: 9.1mph
The windiest month (with the highest average wind speed) is January (9.4mph).
The calmest month (with the lowest average wind speed) is July (5.6mph).
Average humidity in April
Swansea, IL
- Average humidity in April: 77%
The months with the highest relative humidity are May and July (79%).
The month with the lowest relative humidity is October (71%).
Average rainfall in April
Swansea, IL
- Average rainfall in April: 3.78"
The wettest month (with the highest rainfall) is May (4.37").
The driest month (with the least rainfall) is February (1.93").
Average rainfall days in April
Swansea, IL
- Average rainfall days in April: 15.8 days
The month with the highest number of rainy days is May (16.4 days).
The month with the least rainy days is January (6.8 days).
Average snowfall in April
Swansea, IL
- Average snowfall in April: 0"
The month with the highest snowfall is January (2.4").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in April
Swansea, IL
- Average snowfall days in April: 0.3 days
The month with the highest number of snowfall days is January (7.3 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight in April /
Average sunshine in April
Swansea, IL
- Average daylight in April: 13h and 1min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- 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 30min).
Average sunshine days in April
Swansea, IL
- Average sunshine days in April: 13.1 days
The month with the most sunshine days is October (18.3 days).
The month with the least sunshine days is May (12.3 days).
Average UV index in April
Swansea, IL
- Average UV index in April: 4
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in April
Swansea, IL
- Average cloud cover in April: 43
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 29).
Average visibility in April
Swansea, IL
- Average visibility in April: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Swansea, Illinois, USA
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