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
As Tunnel Hill transitions into April, a rise in the average high-temperature is observed, moving from a mild 55.8°F (13.2°C) in March to an enjoyable 66.6°F (19.2°C). An average nighttime temperature of 48.9°F (9.4°C) is noted during the month of April.Humidity
The average relative humidity in April is 77%.Rainfall
In April, in Tunnel Hill, Illinois, the rain falls for 11.3 days. Throughout April, 1.22" (31mm) of precipitation is accumulated. In Tunnel Hill, during the entire year, the rain falls for 118.3 days and collects up to 13.03" (331mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
The average length of the day in April in Tunnel Hill is 13h and 11min.On the first day of the month, sunrise is at 6:39 am and sunset at 7:18 pm. On the last day of April, in Tunnel Hill, sunrise is at 6:00 am and sunset at 7:44 pm CDT.
Sunshine
In Tunnel Hill, the average sunshine in April is 8.5h.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 exposure to the Sun's UV radiation for average individuals.Note: In April, the UV index of 4 transforms into the following advice:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Frequently asked questions
What are the temperatures in Tunnel Hill in April?
What is the average humidity in April in Tunnel Hill?
How many days does it rain in April in Tunnel Hill?
When it does not snow in Tunnel Hill?
Does it snow in Tunnel Hill in April?
What is the average length of the day in April in Tunnel Hill?
When is the sunrise / sunset in April in Tunnel Hill?
How many hours of sunshine does Tunnel Hill have in April?
How high is the UV index in April in Tunnel Hill?
Average temperature in April
Tunnel Hill, IL
- Average high temperature in April: 66.6°F
The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (40.1°F).
- Average low temperature in April: 48.9°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (27°F).
Average pressure in April
Tunnel Hill, IL
- Average pressure in April: 29.96"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in April
Tunnel Hill, IL
- Average wind speed in April: 8.9mph
The windiest months (with the highest average wind speed) are January and February (9mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity in April
Tunnel Hill, IL
- Average humidity in April: 77%
The months with the highest relative humidity are March and May (79%).
The month with the lowest relative humidity is October (71%).
Average rainfall in April
Tunnel Hill, IL
- Average rainfall in April: 1.22"
The wettest month (with the highest rainfall) is June (1.5").
The driest month (with the least rainfall) is September (0.47").
Average rainfall days in April
Tunnel Hill, IL
- Average rainfall days in April: 11.3 days
The month with the highest number of rainy days is July (13.1 days).
The months with the least rainy days are January, February and December (7.3 days).
Average snowfall in April
Tunnel Hill, IL
- Average snowfall in April: 0"
The month with the highest snowfall is February (0.67").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in April
Tunnel Hill, IL
- Average snowfall days in April: 0.2 days
The month with the highest number of snowfall days is January (3.3 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
Tunnel Hill, IL
- Average daylight in April: 13h and 1min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in April: 8h and 3min
The months with the most sunshine are June and July (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 4h and 36min).
Average sunshine days in April
Tunnel Hill, IL
- Average sunshine days in April: 16.7 days
The month with the most sunshine days is October (21.5 days).
The month with the least sunshine days is June (14.8 days).
Average UV index in April
Tunnel Hill, 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
Tunnel Hill, IL
- Average cloud cover in April: 41
The months with the most cloud cover are January and February (Cloud cover 51).
The month with the least cloud cover is September (Cloud cover 28).
Average visibility in April
Tunnel Hill, 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).
Tunnel Hill, Illinois, USA
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