April weather forecast
Mason, IL

Weather in April

April in Mason, Illinois, is an enjoyable spring month, with an average temperature ranging between max 63.5°F (17.5°C) and min 46.6°F (8.1°C).

Temperature

In April, the average high-temperature rises from a fresh 52.2°F (11.2°C) in March to a comfortable 63.5°F (17.5°C). The average low-temperature, in Mason, is 46.6°F (8.1°C).

Humidity

In Mason, the average relative humidity in April is 77%.

Rainfall

April is the month with the most rainfall. Rain falls for 14.3 days and accumulates 3.35" (85mm) of precipitation.

Snowfall

April through October are months without snowfall in Mason.

Daylight

In Mason, the average length of the day in April is 13h and 15min.
On the first day of April in Mason, Illinois, sunrise is at 6:38 am and sunset at 7:18 pm. On the last day of the month, sunrise is at 5:57 am and sunset at 7:46 pm CDT.

Sunshine

The average sunshine in April in Mason is 8.2h.

UV index

The average daily maximum UV index in April in Mason, Illinois, is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: In April, the average maximum UV index of 4 translate into the following recommendations:
Take precautions - Protection against sunburn is recommended. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the temperature in April in Mason?

The average high-temperature, in April, in Mason, Illinois, is 63.5°F (17.5°C), while the average low-temperature is 46.6°F (8.1°C).

What is the average humidity in April in Mason?

In April, the average relative humidity is 77%.

What is the wettest month in Mason?

April is the month with the most rainfall. Rain falls for 14.3 days and accumulates 3.35" (85mm) of precipitation.

How much does it rain in Mason in April?

In Mason, Illinois, during April, the rain falls for 14.3 days and regularly aggregates up to 3.35" (85mm) of precipitation.

When it does not snow in Mason?

April through October are months without snowfall in Mason, Illinois.

Does it snow in Mason in April?

In April, in Mason, it doesn't snow. March is the latest month when it typically snows.

How many hours of daylight does Mason have in April?

In April, the average day length is 13h and 15min.

When are sunrise and sunset in April in Mason?

On the first day of April in Mason, Illinois, sunrise is at 6:38 am and sunset at 7:18 pm. On the last day of the month, sunrise is at 5:57 am and sunset at 7:46 pm CDT.

How many hours of sunshine does Mason have in April?

The average sunshine duration in April in Mason, Illinois, is 8.2h.

How high is the UV index in April in Mason?

In Mason, Illinois, the average daily maximum UV index in April is 4. A UV Index reading of 3 to 5 represents a medium hazard to health from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in April
Mason, IL

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).

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Average pressure in April
Mason, IL

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).

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Average wind speed in April
Mason, IL

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).

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Average humidity in April
Mason, IL

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%).

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Average rainfall in April
Mason, IL

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").

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Average rainfall days in April
Mason, IL

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).

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Average snowfall in April
Mason, IL

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").

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Average snowfall days in April
Mason, IL

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).

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Average daylight in April /
Average sunshine in April
Mason, IL

Average daylight in April / Average sunshine in April - Mason, IL
  • Average daylight in April: 13h and 15min

The month with the longest days is June (Average daylight: 14h and 52min).
The month with the shortest days is December (Average daylight: 9h and 29min).

  • Average sunshine in April: 8h and 12min

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).

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Average sunshine days in April
Mason, IL

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).

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Average UV index in April
Mason, IL

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).

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Average cloud cover in April
Mason, IL

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).

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Average visibility in April
Mason, IL

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).

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