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 rise in Smithboro's average high-temperature, moving from a cool 53.1°F (11.7°C) in March to a refreshing 63.9°F (17.7°C). During the nights in April, the temperature in Smithboro, Illinois, averages to a frosty 46.9°F (8.3°C).Humidity
The average relative humidity in April in Smithboro is 77%.Rainfall
In April, the rain falls for 14.3 days. Throughout April, 2.72" (69mm) of precipitation is accumulated. In Smithboro, during the entire year, the rain falls for 137.9 days and collects up to 24.88" (632mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
In Smithboro, the average length of the day in April is 13h and 15min.On the first day of April, sunrise is at 6:40 am and sunset at 7:21 pm. On the last day of the month, sunrise is at 5:59 am and sunset at 7:49 pm CDT.
Sunshine
In April, the average sunshine in Smithboro is 8.3h.UV index
In April, the average daily maximum UV index in Smithboro is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.Note: An average UV index of 4 in April transforms into this advice:
Take necessary precautions - Defending against sun damage is advocated. Minimize direct exposure to the Sun during midday when its radiation is at its peak. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Smithboro in April?
What is the average humidity in April in Smithboro?
How much does it rain in Smithboro in April?
When it does not snow in Smithboro?
Does it snow in Smithboro in April?
What is the average length of the day in April in Smithboro?
When are sunrise and sunset in April in Smithboro?
How long on average sun shines in April in Smithboro?
What is the UV index intensity in April in Smithboro?
Average temperature in April
Smithboro, IL
- Average high temperature in April: 63.9°F
The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (36.1°F).
- Average low temperature in April: 46.9°F
The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure in April
Smithboro, 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
Smithboro, IL
- Average wind speed in April: 9.6mph
The windiest month (with the highest average wind speed) is January (10mph).
The calmest month (with the lowest average wind speed) is July (5.8mph).
Average humidity in April
Smithboro, IL
- Average humidity in April: 77%
The month with the highest relative humidity is July (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall in April
Smithboro, IL
- Average rainfall in April: 2.72"
The wettest month (with the highest rainfall) is June (3.43").
The driest month (with the least rainfall) is February (1.26").
Average rainfall days in April
Smithboro, IL
- Average rainfall days in April: 14.3 days
The month with the highest number of rainy days is May (17.2 days).
The month with the least rainy days is January (6.3 days).
Average snowfall in April
Smithboro, IL
- Average snowfall in April: 0"
The month with the highest snowfall is December (1.89").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in April
Smithboro, IL
- Average snowfall days in April: 0.2 days
The month with the highest number of snowfall days is January (5.8 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
Smithboro, IL
- Average daylight in April: 13h and 1min
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 30min).
- Average sunshine in April: 8h and 2min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 4h and 30min).
Average sunshine days in April
Smithboro, IL
- Average sunshine days in April: 14.1 days
The month with the most sunshine days is December (20 days).
The month with the least sunshine days is May (11.8 days).
Average UV index in April
Smithboro, 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
Smithboro, IL
- Average cloud cover in April: 43
The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are June, July, August and September (Cloud cover 29).
Average visibility in April
Smithboro, 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).
Smithboro, Illinois, USA
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