April weather forecastMill Creek, IL
April
Weather in April
April is a comfortable spring month in Mill Creek, Illinois, with an average temperature varying between 48.9°F (9.4°C) and 66.6°F (19.2°C).Temperature
April marks a rise in the average high-temperature, moving from March's 55.6°F (13.1°C) to a still refreshing 66.6°F (19.2°C). Throughout April, Mill Creek encounters an average temperature drop to a frosty 48.9°F (9.4°C).Humidity
The average relative humidity in April in Mill Creek is 78%.Rainfall
The month with the most rainfall is April, when the rain falls for 13.4 days and typically aggregates up to 3.31" (84mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. April is the last month it regularly snows. During 0.4 snowfall days, in April, Mill Creek aggregates 0.08" (2mm) of snow. In Mill Creek, during the entire year, snow falls for 14.9 days and aggregates up to 6.06" (154mm) of snow.Daylight
In Mill Creek, the average length of the day in April is 13h and 11min.On the first day of the month, sunrise is at 6:41 am and sunset at 7:20 pm. On the last day of April, in Mill Creek, sunrise is at 6:02 am and sunset at 7:46 pm CDT.
Sunshine
The average sunshine in April in Mill Creek is 8.5h.UV index
In Mill Creek, Illinois, the average daily maximum UV index in April is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: In April, the UV index of 5 transforms into the following advice:
Be vigilant - Preventing sunburn is recommended. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Mill Creek, IL
- Average high temperature in April: 66.6°F
The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (39.7°F).
- Average low temperature in April: 48.9°F
The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (26.8°F).
Average pressure in April
Mill Creek, 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
Mill Creek, IL
- Average wind speed in April: 8.8mph
The windiest month (with the highest average wind speed) is January (9mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in April
Mill Creek, IL
- Average humidity in April: 78%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (71%).
Average rainfall in April
Mill Creek, IL
- Average rainfall in April: 3.31"
The wettest month (with the highest rainfall) is April (3.31").
The driest month (with the least rainfall) is September (1.3").
Average rainfall days in April
Mill Creek, IL
- Average rainfall days in April: 13.4 days
The month with the highest number of rainy days is July (15.9 days).
The month with the least rainy days is January (8.4 days).
Average snowfall in April
Mill Creek, IL
- Average snowfall in April: 0.08"
The month with the highest snowfall is February (1.89").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
Mill Creek, IL
- Average snowfall days in April: 0.4 days
The month with the highest number of snowfall days is January (4.6 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
Mill Creek, IL
- Average daylight in April: 13h and 12min
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 30min
The month with the most sunshine is 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
Mill Creek, IL
- Average sunshine days in April: 14.5 days
The month with the most sunshine days is October (21 days).
The month with the least sunshine days is July (12.8 days).
Average UV index in April
Mill Creek, IL
- Average UV index in April: 5
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
Mill Creek, IL
- Average cloud cover in April: 42
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is September (Cloud cover 28).
Average visibility in April
Mill Creek, 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).
