April weather forecastMackinaw, IL
April
Weather in April
April is a mild spring month in Mackinaw, Illinois, with an average temperature fluctuating between 60.6°F (15.9°C) and 44.2°F (6.8°C).Temperature
The arrival of April signals an increase in the average high-temperature, moving from a chilly 49.3°F (9.6°C) in March to a mild 60.6°F (15.9°C). An average minimum temperature of 44.2°F (6.8°C) marks the month of April.Humidity
In Mackinaw, the average relative humidity in April is 74%.Rainfall
In Mackinaw, in April, it is raining for 11.3 days, with typically 0.94" (24mm) of accumulated precipitation. Throughout the year, there are 99.2 rainfall days, and 8.43" (214mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. April is the last month it regularly snows in Mackinaw. During 0.6 snowfall days, in April, Mackinaw aggregates 0.31" (8mm) of snow. Throughout the year, there are 21.1 snowfall days, and 3.03" (77mm) of snow is accumulated.Daylight
In April, the average length of the day is 13h and 19min.On the first day of April in Mackinaw, sunrise is at 6:39 am and sunset at 7:22 pm. On the last day of the month, sunrise is at 5:56 am and sunset at 7:52 pm CDT.
Sunshine
In April, the average sunshine is 8.1h.UV index
In April, the average daily maximum UV index in Mackinaw is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: An average UV index of 4 in April transforms into this advice:
Exercise prevention - Precautions against solar damage are endorsed. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Mackinaw, IL
- Average high temperature in April: 60.6°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (31.1°F).
- Average low temperature in April: 44.2°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (19°F).
Average pressure in April
Mackinaw, IL
- Average pressure in April: 29.94"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in April
Mackinaw, IL
- Average wind speed in April: 10.7mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in April
Mackinaw, IL
- Average humidity in April: 74%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (71%).
Average rainfall in April
Mackinaw, IL
- Average rainfall in April: 0.94"
The wettest month (with the highest rainfall) is May (1.14").
The driest month (with the least rainfall) is December (0.43").
Average rainfall days in April
Mackinaw, IL
- Average rainfall days in April: 11.3 days
The month with the highest number of rainy days is May (13.4 days).
The month with the least rainy days is January (3.6 days).
Average snowfall in April
Mackinaw, IL
- Average snowfall in April: 0.31"
The month with the highest snowfall is January (1.02").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
Mackinaw, IL
- Average snowfall days in April: 0.6 days
The month with the highest number of snowfall days is January (6.8 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
Mackinaw, IL
- Average daylight in April: 13h and 18min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in April: 8h and 6min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in April
Mackinaw, IL
- Average sunshine days in April: 17 days
The month with the most sunshine days is January (23 days).
The month with the least sunshine days is May (14.7 days).
Average UV index in April
Mackinaw, 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
Mackinaw, IL
- Average cloud cover in April: 46
The month with the most cloud cover is January (Cloud cover 58).
The months with the least cloud cover are August and September (Cloud cover 31).
Average visibility in April
Mackinaw, IL
- Average visibility in April: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
