October weather forecast
Mark, IL

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Weather in October

October, the same as September, is another enjoyable autumn month in Mark, Illinois, with temperature in the range of an average low of 45.7°F (7.6°C) and an average high of 61.7°F (16.5°C).

Temperature

October implies a gentle temperature shift, with average high-temperatures reducing from September's warm 74.7°F (23.7°C) to a refreshing 61.7°F (16.5°C). October sees the temperature falling to a mean low of 45.7°F (7.6°C).

Humidity

With an average relative humidity of 72%, October is the least humid month.

Rainfall

In Mark, during October, the rain falls for 13.2 days and regularly aggregates up to 2.87" (73mm) of precipitation. Throughout the year, there are 152.7 rainfall days, and 30.79" (782mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, October through December. October is the first month it typically snows. Throughout October, in the average 0.5 snowfall days, it receives 0.43" (11mm) of snow. Throughout the year, there are 39.5 snowfall days, and 15.31" (389mm) of snow is accumulated.

Daylight

The average length of the day in October is 11h and 5min.
On the first day of October, sunrise is at 6:54 am and sunset at 6:38 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 5:53 pm CDT.

Sunshine

The average sunshine in October is 5.7h.

UV index

In October, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for average individuals.
Note: The maximum daily UV index of 3 in October converts into the following recommendations:
Act with care - The suggestion to avoid sunburn is emphasized. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.

Frequently asked questions

What are October temperatures?

During October, Mark experiences an average high-temperature of 61.7°F (16.5°C) and a low-temperature of 45.7°F (7.6°C). In July, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is estimated at 86°F (30°C).

What is the least humid month?

With an average relative humidity of 72%, October is the least humid month.

What is the average humidity in October?

In Mark, the average relative humidity in October is 72%.

How much does it rain in October?

In October, the rain falls for 13.2 days. Throughout October, 2.87" (73mm) of precipitation is accumulated.

When does it start to snow?

October is the first month it typically snows. Throughout October, in the average 0.5 snowfall days, it receives 0.43" (11mm) of snow.

How many hours of daylight does Mark have in October?

In October, the average day length is 11h and 5min.

What time are sunrise and sunset in October?

On the first day of October, sunrise is at 6:54 am and sunset at 6:38 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 5:53 pm CDT.

How many hours of sunshine does Mark have in October?

In October, the average sunshine duration is 5.7h.

How high is the UV index in October?

The average daily maximum UV index in October is 3. A UV Index of 3 to 5 symbolizes a medium health risk from unsafe 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 October
Mark, IL

Average temperature in October - Mark, IL
  • Average high temperature in October: 61.7°F

The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (28.9°F).

  • Average low temperature in October: 45.7°F

The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (16.9°F).

Average pressure in October
Mark, IL

Average pressure in October - Mark, IL
  • Average pressure in October: 30.01"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in October
Mark, IL

Average wind speed in October - Mark, IL
  • Average wind speed in October: 9.2mph

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

Average humidity in October
Mark, IL

Average humidity in October - Mark, IL
  • Average humidity in October: 72%

The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (72%).

Average rainfall in October
Mark, IL

Average rainfall in October - Mark, IL
  • Average rainfall in October: 2.87"

The wettest month (with the highest rainfall) is May (4.69").
The driest months (with the least rainfall) are January and December (1.61").

Average rainfall days in October
Mark, IL

Average rainfall days in October - Mark, IL
  • Average rainfall days in October: 13.2 days

The month with the highest number of rainy days is May (18.9 days).
The month with the least rainy days is January (5.9 days).

Average snowfall in October
Mark, IL

Average snowfall in October - Mark, IL
  • Average snowfall in October: 0.43"

The month with the highest snowfall is January (4.09").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in October
Mark, IL

Average snowfall days in October - Mark, IL
  • Average snowfall days in October: 0.5 days

The month with the highest number of snowfall days is January (11.9 days).
The months with the least snowfall days are May, June, July and August (0 days).

Average daylight in October /
Average sunshine in October
Mark, IL

Average daylight in October / Average sunshine in October - Mark, IL
  • Average daylight in October: 11h and 1min

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

  • Average sunshine in October: 5h and 4min

The months with the most sunshine are June, July and August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

Average sunshine days in October
Mark, IL

Average sunshine days in October - Mark, IL
  • Average sunshine days in October: 15.5 days

The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is April (10.2 days).

Average UV index in October
Mark, IL

Average UV index in October - Mark, 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 and December (UV index 1).

Average cloud cover in October
Mark, IL

Average cloud cover in October - Mark, IL
  • Average cloud cover in October: 39

The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are August and September (Cloud cover 32).

Average visibility in October
Mark, IL

Average visibility in October - Mark, IL
  • Average visibility in October: 6mi

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

Mark, Illinois, USA

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