October weather forecast
Arrowsmith, IL

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Weather in October

October, the same as September, is another comfortable autumn month in Arrowsmith, Illinois, with an average temperature ranging between min 46.8°F (8.2°C) and max 62.2°F (16.8°C).

Temperature

Onset of October comes with a temperature decline, the average high falling from a moderately hot 75.9°F (24.4°C) in September to an enjoyable 62.2°F (16.8°C). During the nights in October, Arrowsmith experiences a consistent average temperature of 46.8°F (8.2°C).

Humidity

With an average relative humidity of 71%, October is the least humid month.

Rainfall

In Arrowsmith, during October, the rain falls for 10.5 days and regularly aggregates up to 1.57" (40mm) of precipitation. In Arrowsmith, during the entire year, the rain falls for 139 days and collects up to 20.83" (529mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

The average length of the day in October is 11h and 7min.
On the first day of the month, sunrise is at 6:51 am and sunset at 6:36 pm. On the last day of October, sunrise is at 7:24 am and sunset at 5:52 pm CDT.

Sunshine

In October, the average sunshine is 6h.

UV index

In Arrowsmith, Illinois, the average daily maximum UV index in October is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index of 3 during October translates into the following directions:
Adopt protective measures - It is advised to guard against sun damage. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Updated: Aug 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average October temperature?

The high-temperature during October is 62.2°F (16.8°C) and the low-temperature is 46.8°F (8.2°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, in July is estimated at 86°F (30°C).

What is the least humid month?

The least humid month is October, with an average relative humidity of 71%.

What is the average humidity in October?

In October, the average relative humidity is 71%.

How much does it rain in October?

In Arrowsmith, in October, it is raining for 10.5 days, with typically 1.57" (40mm) of accumulated precipitation.

When it does not snow?

May through October are months without snowfall.

Does it snow in October?

In Arrowsmith, in October, it doesn't snow. In November, it regularly snows.

What is the average length of the day in October?

In Arrowsmith, the average day length in October is 11h and 7min.

When is the sunrise / sunset in October?

In October, on the first day of the month, sunrise is at 6:51 am and sunset at 6:36 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 5:52 pm CDT.

How many hours of sunshine does Arrowsmith have in October?

In October, the average sunshine duration in Arrowsmith is 6h.

What is the UV index reading in October?

The average daily maximum UV index in October 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
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in October
Arrowsmith, IL

Average temperature in October - Arrowsmith, IL
  • Average high temperature in October: 62.2°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 (31.3°F).

  • Average low temperature in October: 46.8°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (19.6°F).

Average pressure in October
Arrowsmith, IL

Average pressure in October - Arrowsmith, 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 (29.92"Hg).

Average wind speed in October
Arrowsmith, IL

Average wind speed in October - Arrowsmith, IL
  • Average wind speed in October: 9.8mph

The windiest month (with the highest average wind speed) is January (11mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).

Average humidity in October
Arrowsmith, IL

Average humidity in October - Arrowsmith, IL
  • Average humidity in October: 71%

The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (71%).

Average rainfall in October
Arrowsmith, IL

Average rainfall in October - Arrowsmith, IL
  • Average rainfall in October: 1.57"

The wettest month (with the highest rainfall) is May (2.87").
The driest month (with the least rainfall) is December (1.1").

Average rainfall days in October
Arrowsmith, IL

Average rainfall days in October - Arrowsmith, IL
  • Average rainfall days in October: 10.5 days

The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (5.8 days).

Average snowfall in October
Arrowsmith, IL

Average snowfall in October - Arrowsmith, IL
  • Average snowfall in October: 0"

The month with the highest snowfall is January (2.8").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in October
Arrowsmith, IL

Average snowfall days in October - Arrowsmith, IL
  • Average snowfall days in October: 0.1 days

The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in October: 6h and 0min

The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

Average sunshine days in October
Arrowsmith, IL

Average sunshine days in October - Arrowsmith, IL
  • Average sunshine days in October: 18.7 days

The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is June (10.3 days).

Average UV index in October
Arrowsmith, IL

Average UV index in October - Arrowsmith, IL
  • Average UV index in October: 3

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in October
Arrowsmith, IL

Average cloud cover in October - Arrowsmith, IL
  • Average cloud cover in October: 37

The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is September (Cloud cover 31).

Average visibility in October
Arrowsmith, IL

Average visibility in October - Arrowsmith, 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).

Arrowsmith, Illinois, USA

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