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 coincides with a rise in the average high-temperature, moving from March's frosty 46.8°F (8.2°C) to a refreshing 59°F (15°C). An average low-temperature of 42.4°F (5.8°C) is expected during April.Humidity
In Port Byron, the average relative humidity in April is 74%.Rainfall
In Port Byron, during April, the rain falls for 11.8 days and regularly aggregates up to 1.02" (26mm) of precipitation. In Port Byron, during the entire year, the rain falls for 99.4 days and collects up to 9.57" (243mm) of precipitation.Snowfall
Months with snowfall are January through April, September through December. April is the last month it regularly snows. During 0.8 snowfall days, in April, Port Byron aggregates 0.28" (7mm) of snow. Throughout the year, there are 24.5 snowfall days, and 4.09" (104mm) of snow is accumulated.Daylight
In Port Byron, the average length of the day in April is 13h and 22min.On the first day of the month, sunrise is at 6:42 am and sunset at 7:27 pm. On the last day of April, in Port Byron, Illinois, sunrise is at 5:58 am and sunset at 7:58 pm CDT.
Sunshine
In April, the average sunshine is 7.6h.UV index
In April, the average daily maximum UV index in Port Byron is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: In April, the maximum UV index of 4 suggests this advice:
Undertake protective steps - Recommendations to avoid sunburn are issued. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Frequently asked questions
What is the average April temperature in Port Byron?
What is the average humidity in April in Port Byron?
How much does it rain in Port Byron in April?
What is the last month it snows in Port Byron?
How many hours of daylight does Port Byron have in April?
What time are sunrise and sunset in April in Port Byron?
How many hours of sunshine does Port Byron have in April?
How high is the UV index in April in Port Byron?
Average temperature in April
Port Byron, IL
- Average high temperature in April: 59°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (28.2°F).
- Average low temperature in April: 42.4°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (15.4°F).
Average pressure in April
Port Byron, IL
- Average pressure in April: 29.93"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in April
Port Byron, IL
- Average wind speed in April: 10.6mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.7mph).
Average humidity in April
Port Byron, IL
- Average humidity in April: 74%
The months with the highest relative humidity are January and July (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall in April
Port Byron, IL
- Average rainfall in April: 1.02"
The wettest month (with the highest rainfall) is May (1.61").
The driest month (with the least rainfall) is December (0.35").
Average rainfall days in April
Port Byron, IL
- Average rainfall days in April: 11.8 days
The month with the highest number of rainy days is May (13.4 days).
The month with the least rainy days is January (3.2 days).
Average snowfall in April
Port Byron, IL
- Average snowfall in April: 0.28"
The month with the highest snowfall is January (1.26").
The months with the least snowfall are May, June, July and August (0").
Average snowfall days in April
Port Byron, IL
- Average snowfall days in April: 0.8 days
The month with the highest number of snowfall days is January (7.2 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight in April /
Average sunshine in April
Port Byron, 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 month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in April
Port Byron, IL
- Average sunshine days in April: 16.7 days
The month with the most sunshine days is December (22.4 days).
The month with the least sunshine days is June (14.4 days).
Average UV index in April
Port Byron, IL
- Average UV index in April: 4
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in April
Port Byron, IL
- Average cloud cover in April: 49
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in April
Port Byron, 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).
Port Byron, Illinois, USA
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