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 onset witnesses a shift in the average high-temperature, moving from a chilly 45.7°F (7.6°C) in March to a moderate 57°F (13.9°C). During the nights in April, an average low-temperature of 41°F (5°C) is observed.Humidity
In Romeoville, the average relative humidity in April is 74%.Rainfall
In Romeoville, during April, the rain falls for 15 days and regularly aggregates up to 2.4" (61mm) of precipitation. In Romeoville, during the entire year, the rain falls for 145.4 days and collects up to 22.83" (580mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Romeoville, in April, snow falls for 2.2 days, with typically accumulated 1.77" (45mm) of snow. Throughout the year, there are 44.4 snowfall days, and 11.93" (303mm) of snow is accumulated.Daylight
In April, the average length of the day in Romeoville is 13h and 22min.On the first day of April in Romeoville, sunrise is at 6:33 am and sunset at 7:18 pm. On the last day of the month, sunrise is at 5:49 am and sunset at 7:49 pm CDT.
Sunshine
The average sunshine in April in Romeoville is 7.6h.UV index
In Romeoville, Illinois, the average daily maximum UV index in April is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: A maximum high daily UV index of 3 during April translates into the following directions:
Take measures. Individuals with light skin might experience burns in under 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Frequently asked questions
What are April temperatures in Romeoville?
What is the average humidity in April in Romeoville?
How much does it rain in Romeoville in April?
How much does it snow in Romeoville in April?
How many hours of daylight does Romeoville have in April?
When are sunrise and sunset in April in Romeoville?
How many hours of sunshine does Romeoville have in April?
What is the UV index reading in April in Romeoville?
Average temperature in April
Romeoville, IL
- Average high temperature in April: 57°F
The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (28.8°F).
- Average low temperature in April: 41°F
The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).
Average pressure in April
Romeoville, IL
- Average pressure in April: 29.95"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in April
Romeoville, IL
- Average wind speed in April: 9.5mph
The windiest month (with the highest average wind speed) is January (9.7mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in April
Romeoville, IL
- Average humidity in April: 74%
The months with the highest relative humidity are January and February (83%).
The month with the lowest relative humidity is October (73%).
Average rainfall in April
Romeoville, IL
- Average rainfall in April: 2.4"
The wettest month (with the highest rainfall) is May (2.83").
The driest month (with the least rainfall) is December (1.06").
Average rainfall days in April
Romeoville, IL
- Average rainfall days in April: 15 days
The month with the highest number of rainy days is July (18.1 days).
The month with the least rainy days is February (4.9 days).
Average snowfall in April
Romeoville, IL
- Average snowfall in April: 1.77"
The month with the highest snowfall is January (3.11").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Romeoville, IL
- Average snowfall days in April: 2.2 days
The month with the highest number of snowfall days is January (12.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Romeoville, IL
- Average daylight in April: 13h and 2min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in April: 7h and 4min
The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in April
Romeoville, IL
- Average sunshine days in April: 11.1 days
The month with the most sunshine days is November (18.4 days).
The month with the least sunshine days is July (9.3 days).
Average UV index in April
Romeoville, IL
- Average UV index in April: 3
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in April
Romeoville, IL
- Average cloud cover in April: 49
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in April
Romeoville, IL
- Average visibility in April: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
Romeoville, Illinois, USA
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