October weather forecast
Mason City, IL

Weather in October

October, the same as September, is another comfortable autumn month in Mason City, Illinois, with an average temperature fluctuating between 63.7°F (17.6°C) and 47.3°F (8.5°C).

Temperature

In Mason City, the average high-temperature in October decreases from a moderately hot 76.8°F (24.9°C) in September to an enjoyable 63.7°F (17.6°C). The average low-temperature, in October, is 47.3°F (8.5°C).

Humidity

With an average relative humidity of 70%, October is the least humid month in Mason City.

Rainfall

In Mason City, during 12.4 rainfall days, 2.76" (70mm) of precipitation is typically accumulated. Throughout the year, in Mason City, there are 150 rainfall days, and 29.84" (758mm) of precipitation is accumulated.

Snowfall

January through April, October through December are months with snowfall. October is the first month it typically snows. Throughout October, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow. Throughout the year, in Mason City, there are 31.9 snowfall days, and 11.06" (281mm) of snow is accumulated.

Daylight

The average length of the day in October is 11h and 7min.
On the first day of October, sunrise is at 6:55 am and sunset at 6:41 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 5:57 pm CDT.

Sunshine

In Mason City, Illinois, the average sunshine in October is 5.9h.

UV index

In October, the average daily maximum UV index in Mason City is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the average person.
Note: In October, the average maximum UV index of 3 translate into the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. 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 October in Mason City?

In October, the average high-temperature is 63.7°F (17.6°C), and the average low-temperature is 47.3°F (8.5°C). in August, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which factors the actual air temperature with the relative humidity, is computed to be 87.8°F (31°C).

What is the least humid month in Mason City?

October is the least humid month, with an average relative humidity of 70%.

What is the average humidity in October in Mason City?

In Mason City, Illinois, the average relative humidity in October is 70%.

How much does it rain in Mason City in October?

In October, the rain falls for 12.4 days. Throughout October, 2.76" (70mm) of precipitation is accumulated.

When does it start snowing in Mason City?

October is the first month it typically snows in Mason City. Throughout October, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow.

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

The average day length in October in Mason City, Illinois, is 11h and 7min.

When are sunrise and sunset in October in Mason City?

In October, on the first day of the month, sunrise is at 6:55 am and sunset at 6:41 pm. On the last day of the month, in Mason City, sunrise is at 7:27 am and sunset at 5:57 pm CDT.

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

In Mason City, the average sunshine duration in October is 5.9h.

What is the UV index intensity in October in Mason City?

The average daily maximum UV index in October in Mason City, Illinois, is 3. A UV Index value of 3 to 5 symbolizes a moderate health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in October
Mason City, IL

Average temperature in October - Mason City, IL
  • Average high temperature in October: 63.7°F

The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (32°F).

  • Average low temperature in October: 47.3°F

The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (19.9°F).

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Average pressure in October
Mason City, IL

Average pressure in October - Mason City, IL
  • Average pressure in October: 30.02"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).

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Average wind speed in October
Mason City, IL

Average wind speed in October - Mason City, IL
  • Average wind speed in October: 9.1mph

The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).

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Average humidity in October
Mason City, IL

Average humidity in October - Mason City, IL
  • Average humidity in October: 70%

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (70%).

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Average rainfall in October
Mason City, IL

Average rainfall in October - Mason City, IL
  • Average rainfall in October: 2.76"

The wettest month (with the highest rainfall) is May (3.98").
The driest month (with the least rainfall) is December (1.46").

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Average rainfall days in October
Mason City, IL

Average rainfall days in October - Mason City, IL
  • Average rainfall days in October: 12.4 days

The month with the highest number of rainy days is May (18.9 days).
The month with the least rainy days is February (6.2 days).

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Average snowfall in October
Mason City, IL

Average snowfall in October - Mason City, IL
  • Average snowfall in October: 0.04"

The month with the highest snowfall is January (3.98").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in October
Mason City, IL

Average snowfall days in October - Mason City, IL
  • Average snowfall days in October: 0.1 days

The month with the highest number of snowfall days is January (10.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in October /
Average sunshine in October
Mason City, IL

Average daylight in October / Average sunshine in October - Mason City, IL
  • Average daylight in October: 11h and 7min

The month with the longest days is June (Average daylight: 14h and 59min).
The month with the shortest days is December (Average daylight: 9h and 22min).

  • Average sunshine in October: 5h and 54min

The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

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Average sunshine days in October
Mason City, IL

Average sunshine days in October - Mason City, IL
  • Average sunshine days in October: 16.9 days

The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is May (10.5 days).

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Average UV index in October
Mason City, IL

Average UV index in October - Mason City, IL
  • Average UV index in October: 3

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 October
Mason City, IL

Average cloud cover in October - Mason City, IL
  • Average cloud cover in October: 36

The month with the most cloud cover is January (Cloud cover 55).
The months with the least cloud cover are August and September (Cloud cover 29).

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Average visibility in October
Mason City, IL

Average visibility in October - Mason City, IL
  • Average visibility in October: 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).

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