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 shows a rise in the average high-temperature, moving from March's fresh 54.5°F (12.5°C) to an enjoyable 65.5°F (18.6°C). Throughout the April nights, Fairview Heights encounters a low-temperature of 47.8°F (8.8°C).Humidity
The average relative humidity in April is 77%.Rainfall
In April, in Fairview Heights, the rain falls for 15.8 days. Throughout April, 3.78" (96mm) of precipitation is accumulated. Throughout the year, in Fairview Heights, there are 147.1 rainfall days, and 35.43" (900mm) of precipitation is accumulated.Snowfall
In Fairview Heights, snow does not fall in April through October.Daylight
The average length of the day in April is 13h and 14min.On the first day of the month, sunrise is at 6:43 am and sunset at 7:23 pm. On the last day of April, in Fairview Heights, sunrise is at 6:02 am and sunset at 7:51 pm CDT.
Sunshine
In April, the average sunshine in Fairview Heights, Illinois, is 8.3h.UV index
The average daily maximum UV index in April is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: A daily high UV index of 4 in April leads to these guidelines:
Exercise caution. Those with pale skin may experience burns in less than half an hour. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Frequently asked questions
What are April temperatures in Fairview Heights?
What is the average humidity in April in Fairview Heights?
How much does it rain in Fairview Heights in April?
When it does not snow in Fairview Heights?
Does it snow in Fairview Heights in April?
What is the average length of the day in April in Fairview Heights?
When are sunrise and sunset in April in Fairview Heights?
How long on average sun shines in April in Fairview Heights?
What is the UV index reading in April in Fairview Heights?
Average temperature in April
Fairview Heights, IL
- Average high temperature in April: 65.5°F
The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is January (37.8°F).
- Average low temperature in April: 47.8°F
The month with the highest average low temperature is July (68.4°F).
The coldest month (with the lowest average low temperature) is January (24.8°F).
Average pressure in April
Fairview Heights, 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
Fairview Heights, IL
- Average wind speed in April: 9.1mph
The windiest month (with the highest average wind speed) is January (9.4mph).
The calmest month (with the lowest average wind speed) is July (5.6mph).
Average humidity in April
Fairview Heights, IL
- Average humidity in April: 77%
The months with the highest relative humidity are May and July (79%).
The month with the lowest relative humidity is October (71%).
Average rainfall in April
Fairview Heights, IL
- Average rainfall in April: 3.78"
The wettest month (with the highest rainfall) is May (4.37").
The driest month (with the least rainfall) is February (1.93").
Average rainfall days in April
Fairview Heights, IL
- Average rainfall days in April: 15.8 days
The month with the highest number of rainy days is May (16.4 days).
The month with the least rainy days is January (6.8 days).
Average snowfall in April
Fairview Heights, IL
- Average snowfall in April: 0"
The month with the highest snowfall is January (2.4").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in April
Fairview Heights, IL
- Average snowfall days in April: 0.3 days
The month with the highest number of snowfall days is January (7.3 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight in April /
Average sunshine in April
Fairview Heights, IL
- Average daylight in April: 13h and 1min
The month with the longest days is June (Average daylight: 14h and 48min).
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 18min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days in April
Fairview Heights, IL
- Average sunshine days in April: 13.1 days
The month with the most sunshine days is October (18.3 days).
The month with the least sunshine days is May (12.3 days).
Average UV index in April
Fairview Heights, IL
- Average UV index in April: 4
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in April
Fairview Heights, IL
- Average cloud cover in April: 43
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 29).
Average visibility in April
Fairview Heights, 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).
Fairview Heights, Illinois, USA
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