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
Seymour in April shows a temperature shift, moving from an average high of a chilly 49.3°F (9.6°C) in March to a refreshing 61.3°F (16.3°C). During the month of April, the temperature falls to an average of 45.5°F (7.5°C).Humidity
In April, the average relative humidity is 74%.Rainfall
In Seymour, in April, during 15.9 rainfall days, 3.31" (84mm) of precipitation is typically accumulated. In Seymour, during the entire year, the rain falls for 152.9 days and collects up to 29.72" (755mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. April is the last month it regularly snows. During 0.9 snowfall days, in April, Seymour aggregates 0.12" (3mm) of snow. In Seymour, during the entire year, snow falls for 33.9 days and aggregates up to 11.81" (300mm) of snow.Daylight
In Seymour, the average length of the day in April is 13h and 18min.On the first day of April in Seymour, sunrise is at 6:36 am and sunset at 7:18 pm. On the last day of the month, sunrise is at 5:53 am and sunset at 7:48 pm CDT.
Sunshine
In Seymour, the average sunshine in April is 8.1h.UV index
The average daily maximum UV index in April in Seymour, Illinois, is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: The daily high UV index of 4 during April translates into the following recommendations:
Put precautions into practice - Protective measures against sun-induced damage are advised. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Frequently asked questions
What is the average April temperature in Seymour?
What is the average humidity in April in Seymour?
How much does it rain in Seymour in April?
What is the last month it snows in Seymour?
What is the average length of the day in April in Seymour?
When is the sunrise / sunset in April in Seymour?
How many hours of sunshine does Seymour have in April?
How high is the UV index in April in Seymour?
Average temperature in April
Seymour, IL
- Average high temperature in April: 61.3°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (31.5°F).
- Average low temperature in April: 45.5°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (19.9°F).
Average pressure in April
Seymour, IL
- Average pressure in April: 29.94"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in April
Seymour, IL
- Average wind speed in April: 10.7mph
The windiest month (with the highest average wind speed) is January (10.9mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).
Average humidity in April
Seymour, IL
- Average humidity in April: 74%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (70%).
Average rainfall in April
Seymour, IL
- Average rainfall in April: 3.31"
The wettest month (with the highest rainfall) is May (3.9").
The driest month (with the least rainfall) is December (1.65").
Average rainfall days in April
Seymour, 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 (6.3 days).
Average snowfall in April
Seymour, IL
- Average snowfall in April: 0.12"
The month with the highest snowfall is January (4.25").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
Seymour, IL
- Average snowfall days in April: 0.9 days
The month with the highest number of snowfall days is January (11.4 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
Seymour, IL
- Average daylight in April: 13h and 2min
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 24min).
- Average sunshine in April: 8h and 1min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in April
Seymour, IL
- Average sunshine days in April: 11.6 days
The month with the most sunshine days is November (18 days).
The month with the least sunshine days is June (10.2 days).
Average UV index in April
Seymour, 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
Seymour, IL
- Average cloud cover in April: 45
The month with the most cloud cover is January (Cloud cover 57).
The months with the least cloud cover are August and September (Cloud cover 31).
Average visibility in April
Seymour, IL
- Average visibility in April: 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).
Seymour, Illinois, USA
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