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 brings a temperature change, with average high-temperatures moving from March's cool 51.4°F (10.8°C) to an enjoyable 62.4°F (16.9°C). During the nights in April, an average low-temperature of 46°F (7.8°C) is observed in Dennison.Humidity
The average relative humidity in April is 77%.Rainfall
The month with the most rainfall in Dennison is April, when the rain falls for 16 days and typically aggregates up to 4.96" (126mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. April is the last month it regularly snows in Dennison. During 0.5 snowfall days, in April, Dennison aggregates 0.16" (4mm) of snow. In Dennison, during the entire year, snow falls for 24.7 days and aggregates up to 8.66" (220mm) of snow.Daylight
In April, the average length of the day in Dennison, Illinois, is 13h and 16min.On the first day of the month, sunrise is at 6:33 am and sunset at 7:14 pm. On the last day of April, in Dennison, sunrise is at 5:51 am and sunset at 7:43 pm CDT.
Sunshine
The average sunshine in April is 6.9h.UV index
In April, the average daily maximum UV index in Dennison is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: A maximum daily UV index of 4 during April morphs into the following directions:
Be vigilant - A duty to shield skin and eyes from injury exists. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Frequently asked questions
What is the average April temperature in Dennison?
What is the average humidity in April in Dennison?
What is the rainiest month in Dennison?
How much does it rain in Dennison in April?
What is the last month it snows in Dennison?
How many hours of daylight does Dennison have in April?
When is the sunrise / sunset in April in Dennison?
How many hours of sunshine does Dennison have in April?
What is the UV index reading in April in Dennison?
Average temperature in April
Dennison, IL
- Average high temperature in April: 62.4°F
The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (34.3°F).
- Average low temperature in April: 46°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (22.3°F).
Average pressure in April
Dennison, IL
- Average pressure in April: 29.95"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in April
Dennison, IL
- Average wind speed in April: 9.9mph
The windiest month (with the highest average wind speed) is February (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).
Average humidity in April
Dennison, IL
- Average humidity in April: 77%
The month with the highest relative humidity is July (82%).
The month with the lowest relative humidity is October (72%).
Average rainfall in April
Dennison, IL
- Average rainfall in April: 4.96"
The wettest month (with the highest rainfall) is April (4.96").
The driest month (with the least rainfall) is September (1.81").
Average rainfall days in April
Dennison, IL
- Average rainfall days in April: 16 days
The month with the highest number of rainy days is May (20.6 days).
The month with the least rainy days is January (8.2 days).
Average snowfall in April
Dennison, IL
- Average snowfall in April: 0.16"
The month with the highest snowfall is January (2.56").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
Dennison, IL
- Average snowfall days in April: 0.5 days
The month with the highest number of snowfall days is January (7.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in April /
Average sunshine in April
Dennison, 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: 6h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The months with the least sunshine are January and December (Average sunshine: 4h and 18min).
Average sunshine days in April
Dennison, IL
- Average sunshine days in April: 12.2 days
The month with the most sunshine days is November (18.4 days).
The month with the least sunshine days is May (7.9 days).
Average UV index in April
Dennison, 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, October, November and December (UV index 2).
Average cloud cover in April
Dennison, 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 June, August and September (Cloud cover 32).
Average visibility in April
Dennison, 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).
Dennison, Illinois, USA
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