April weather forecast
Mason City, IA

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Weather in April

April in Mason City brings a refreshing climatic transformation, ringing in proper springtime weather. Temperatures continue on an upward trajectory, yielding considerable relief from the winter's shivering cold. The blooming flowers and breezy winds envelop the city in a joyful spring spirit. However, as April showers heighten, reaching an average record of 3.07" (78mm), umbrellas become an essential outdoor accessory. The increased cloud cover during April somewhat dims the daylight hours, bringing a whimsical balance between sunlight and cloud cover.

Temperature

The start of April brings a rise in the average high-temperature, moving from an icy 41.4°F (5.2°C) in March to a cool 54.9°F (12.7°C). Throughout the month of April, Mason City reports a steady low-temperature average of 39.7°F (4.3°C).

Humidity

In Mason City, the average relative humidity in April is 72%.

Rainfall

In Mason City, in April, it is raining for 16.3 days, with typically 3.07" (78mm) of accumulated precipitation. In Mason City, during the entire year, the rain falls for 145.9 days and collects up to 28.82" (732mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In Mason City, in April, snow falls for 2.9 days, with typically accumulated 2.48" (63mm) of snow. Throughout the year, in Mason City, there are 60.2 snowfall days, and 26.26" (667mm) of snow is accumulated.

Daylight

The average length of the day in April is 13h and 26min.
On the first day of the month, sunrise is at 6:53 am and sunset at 7:39 pm. On the last day of April, sunrise is at 6:06 am and sunset at 8:13 pm CDT.

Sunshine

The average sunshine in April in Mason City is 7.6h.

UV index

The average daily maximum UV index in April in Mason City is 3. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A daily high UV index of 3 in April leads to these guidelines:
Act with care - The suggestion to avoid sunburn is emphasized. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
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Frequently asked questions

What are April temperatures in Mason City?

The high-temperature, in April, in Mason City, is 54.9°F (12.7°C), while the low-temperature averages to 39.7°F (4.3°C).

What is the average humidity in April in Mason City?

In April, the average relative humidity in Mason City, Iowa, is 72%.

How many days does it rain in April in Mason City?

In April, in Mason City, Iowa, the rain falls for 16.3 days. Throughout April, 3.07" (78mm) of precipitation is accumulated.

How much does it snow in Mason City in April?

In Mason City, in April, snow falls for 2.9 days, with typically accumulated 2.48" (63mm) of snow.

How many hours of daylight does Mason City have in April?

The average day length in April in Mason City is 13h and 26min.

When is the sunrise / sunset in April in Mason City?

On the first day of April in Mason City, sunrise is at 6:53 am and sunset at 7:39 pm. On the last day of the month, sunrise is at 6:06 am and sunset at 8:13 pm CDT.

How many hours of sunshine does Mason City have in April?

In Mason City, Iowa, the average sunshine duration in April is 7.6h.

How high is the UV index in April in Mason City?

The average daily maximum UV index in April in Mason City, Iowa, is 3. A UV Index reading of 3 to 5 represents a medium health risk from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in April
Mason City, IA

Average temperature in April - Mason City, IA
  • Average high temperature in April: 54.9°F

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (22.3°F).

  • Average low temperature in April: 39.7°F

The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (9.9°F).

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Average pressure in April
Mason City, IA

Average pressure in April - Mason City, IA
  • Average pressure in April: 29.93"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

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Average wind speed in April
Mason City, IA

Average wind speed in April - Mason City, IA
  • Average wind speed in April: 10.9mph

The windiest months (with the highest average wind speed) are January and April (10.9mph).
The calmest months (with the lowest average wind speed) are July and August (7.3mph).

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Average humidity in April
Mason City, IA

Average humidity in April - Mason City, IA
  • Average humidity in April: 72%

The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in April
Mason City, IA

Average rainfall in April - Mason City, IA
  • Average rainfall in April: 3.07"

The wettest month (with the highest rainfall) is June (4.65").
The driest month (with the least rainfall) is January (1.06").

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Average rainfall days in April
Mason City, IA

Average rainfall days in April - Mason City, IA
  • Average rainfall days in April: 16.3 days

The month with the highest number of rainy days is June (19.8 days).
The month with the least rainy days is February (3.8 days).

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Average snowfall in April
Mason City, IA

Average snowfall in April - Mason City, IA
  • Average snowfall in April: 2.48"

The month with the highest snowfall is February (7.48").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in April
Mason City, IA

Average snowfall days in April - Mason City, IA
  • Average snowfall days in April: 2.9 days

The month with the highest number of snowfall days is January (14.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in April /
Average sunshine in April
Mason City, IA

Average daylight in April / Average sunshine in April - Mason City, IA
  • Average daylight in April: 13h and 2min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in April: 7h and 4min

The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

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Average sunshine days in April
Mason City, IA

Average sunshine days in April - Mason City, IA
  • Average sunshine days in April: 11 days

The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is June (8 days).

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Average UV index in April
Mason City, IA

Average UV index in April - Mason City, IA
  • Average UV index in April: 3

The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

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Average cloud cover in April
Mason City, IA

Average cloud cover in April - Mason City, IA
  • Average cloud cover in April: 48

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 32).

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Average visibility in April
Mason City, IA

Average visibility in April - Mason City, IA
  • Average visibility in April: 6mi

The months with the highest visibility are March, April, May, June, August, September, October and November (6mi).
The months with the lowest visibility are January, February, July and December (5mi).

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Mason City, Iowa, USA

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