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's arrival coincides with a rise in the average high-temperature, moving from March's fresh 52.2°F (11.2°C) to an enjoyable 63.5°F (17.5°C). April nights are marked by an average temperature drop to a chilly 46.6°F (8.1°C).Humidity
In Mason, the average relative humidity in April is 77%.Rainfall
The month with the most rainfall is April, when the rain falls for 14.3 days and typically aggregates up to 3.35" (85mm) of precipitation.Snowfall
In Mason, snow does not fall in April through October.Daylight
The average length of the day in April in Mason is 13h and 15min.On the first day of the month, sunrise is at 6:37 am and sunset at 7:18 pm. On the last day of April, sunrise is at 5:56 am and sunset at 7:46 pm CDT.
Sunshine
In April, the average sunshine is 8.2h.UV index
In Mason, the average daily maximum UV index in April is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index, 4 in April, converts into the following recommendations:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Mason in April?
What is the average humidity in April in Mason?
What is the rainiest month in Mason?
How many days does it rain in April in Mason?
When it does not snow in Mason?
Does it snow in Mason in April?
How many hours of daylight does Mason have in April?
When are sunrise and sunset in April in Mason?
How long on average sun shines in April in Mason?
How high is the UV index in April in Mason?
Average temperature in April
Mason, IL
- Average high temperature in April: 63.5°F
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (35.6°F).
- Average low temperature in April: 46.6°F
The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure in April
Mason, IL
- Average pressure in April: 29.95"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in April
Mason, IL
- Average wind speed in April: 10mph
The windiest months (with the highest average wind speed) are January and February (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).
Average humidity in April
Mason, IL
- Average humidity in April: 77%
The months with the highest relative humidity are July and August (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall in April
Mason, IL
- Average rainfall in April: 3.35"
The wettest month (with the highest rainfall) is April (3.35").
The driest month (with the least rainfall) is February (1.38").
Average rainfall days in April
Mason, IL
- Average rainfall days in April: 14.3 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in April
Mason, IL
- Average snowfall in April: 0"
The month with the highest snowfall is January (2.01").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in April
Mason, IL
- Average snowfall days in April: 0.3 days
The month with the highest number of snowfall days is January (5.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in April /
Average sunshine in April
Mason, 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 1min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in April
Mason, IL
- Average sunshine days in April: 13.9 days
The month with the most sunshine days is December (19.5 days).
The month with the least sunshine days is May (10.8 days).
Average UV index in April
Mason, 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
Mason, IL
- Average cloud cover in April: 43
The month with the most cloud cover is January (Cloud cover 53).
The months with the least cloud cover are June and September (Cloud cover 29).
Average visibility in April
Mason, 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).
Mason, Illinois, USA
Weather forecast for your location
2. Allow the app to use your location