October weather forecast
Barrington, IL

Weather in October

October, like September, is another mild autumn month in Barrington, Illinois, with an average temperature ranging between min 45.3°F (7.4°C) and max 59.5°F (15.3°C).

Temperature

In Barrington, the average high-temperature in October decreases from a pleasant 72.9°F (22.7°C) in September to a mild 59.5°F (15.3°C). In October, the average low-temperature is 45.3°F (7.4°C).

Humidity

With an average relative humidity of 74%, October is the least humid month.

Rainfall

In Barrington, during October, the rain falls for 14.6 days and regularly aggregates up to 2.72" (69mm) of precipitation. In Barrington, during the entire year, the rain falls for 163.1 days and collects up to 32.24" (819mm) of precipitation.

Snowfall

Months with snowfall in Barrington are January through May, October through December. October is the first month it typically snows. Throughout October, in the average 0.5 snowfall days, it receives 0.35" (9mm) of snow. In Barrington, during the entire year, snow falls for 55.5 days and aggregates up to 22.95" (583mm) of snow.

Daylight

In Barrington, Illinois, the average length of the day in October is 11h and 3min.
On the first day of the month, sunrise is at 6:49 am and sunset at 6:34 pm. On the last day of October, in Barrington, Illinois, sunrise is at 7:24 am and sunset at 5:47 pm CDT.

Sunshine

In October, the average sunshine is 5.5h.

UV index

The average daily maximum UV index in October is 2. A UV Index estimate of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: The average daily UV index of 2 in October transform into the following instructions:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the least humid month in Barrington?

With an average relative humidity of 74%, October is the least humid month in Barrington, Illinois.

What is the average humidity in October in Barrington?

In Barrington, Illinois, the average relative humidity in October is 74%.

How many days does it rain in October in Barrington?

In Barrington, Illinois, in October, during 14.6 rainfall days, 2.72" (69mm) of precipitation is typically accumulated.

When does it start to snow in Barrington?

October is the first month it typically snows in Barrington. Throughout October, in the average 0.5 snowfall days, it receives 0.35" (9mm) of snow.

What is the average length of the day in October in Barrington?

In October, the average day length in Barrington is 11h and 3min.

What time are sunrise and sunset in October in Barrington?

On the first day of October in Barrington, Illinois, sunrise is at 6:49 am and sunset at 6:34 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 5:47 pm CDT.

How long on average sun shines in October in Barrington?

In October, the average sunshine duration is 5.5h.

What is the UV index intensity in October in Barrington?

The average daily maximum UV index in October is 2. A UV Index estimate of 2, and below, represents a minimal hazard to health from unsafe 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
Barrington, IL

Average temperature in October - Barrington, IL
  • Average high temperature in October: 59.5°F

The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (27.7°F).

  • Average low temperature in October: 45.3°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 (16.3°F).

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Average pressure in October
Barrington, IL

Average pressure in October - Barrington, IL
  • Average pressure in October: 30"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in October
Barrington, IL

Average wind speed in October - Barrington, IL
  • Average wind speed in October: 8.8mph

The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).

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Average humidity in October
Barrington, IL

Average humidity in October - Barrington, IL
  • Average humidity in October: 74%

The months with the highest relative humidity are January and February (83%).
The month with the lowest relative humidity is October (74%).

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Average rainfall in October
Barrington, IL

Average rainfall in October - Barrington, IL
  • Average rainfall in October: 2.72"

The wettest month (with the highest rainfall) is June (4.13").
The driest month (with the least rainfall) is November (1.61").

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Average rainfall days in October
Barrington, IL

Average rainfall days in October - Barrington, IL
  • Average rainfall days in October: 14.6 days

The month with the highest number of rainy days is May (20 days).
The month with the least rainy days is February (5.7 days).

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Average snowfall in October
Barrington, IL

Average snowfall in October - Barrington, IL
  • Average snowfall in October: 0.35"

The month with the highest snowfall is February (6.22").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in October
Barrington, IL

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

The month with the highest number of snowfall days is January (15.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in October / Average sunshine in October - Barrington, IL
  • Average daylight in October: 11h and 3min

The month with the longest days is June (Average daylight: 15h and 13min).
The month with the shortest days is December (Average daylight: 9h and 10min).

  • Average sunshine in October: 5h and 30min

The months with the most sunshine are July and August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

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Average sunshine days in October
Barrington, IL

Average sunshine days in October - Barrington, IL
  • Average sunshine days in October: 13.7 days

The month with the most sunshine days is November (15.5 days).
The month with the least sunshine days is June (8.4 days).

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Average UV index in October
Barrington, IL

Average UV index in October - Barrington, IL
  • Average UV index in October: 2

The months with the highest UV index are July and August (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 October
Barrington, IL

Average cloud cover in October - Barrington, IL
  • Average cloud cover in October: 43

The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are July, August and September (Cloud cover 31).

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Average visibility in October
Barrington, IL

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

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

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