October weather forecast
Farmington, IL

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Weather in October

October, the same as September, is another comfortable autumn month in Farmington, Illinois, with temperature in the range of an average high of 62.1°F (16.7°C) and an average low of 46°F (7.8°C).

Temperature

Onset of October witnesses a reduction in the average high-temperature, falling from a moderately hot 76.3°F (24.6°C) in September to a comfortable 62.1°F (16.7°C). In October, Farmington records an average nighttime temperature of 46°F (7.8°C).

Humidity

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

Rainfall

In Farmington, in October, it is raining for 11.6 days, with typically 2.83" (72mm) of accumulated precipitation. In Farmington, during the entire year, the rain falls for 145.3 days and collects up to 28.62" (727mm) of precipitation.

Snowfall

Months with snowfall are January through April, October through December. October is the first month it typically snows. Throughout October, in the average 0.2 snowfall days, it receives 0.04" (1mm) of snow. In Farmington, during the entire year, snow falls for 30.9 days and aggregates up to 11.3" (287mm) of snow.

Daylight

The average length of the day in October is 11h and 7min.
On the first day of the month, sunrise is at 6:57 am and sunset at 6:41 pm. On the last day of October, sunrise is at 7:30 am and sunset at 5:57 pm CDT.

Sunshine

The average sunshine in October in Farmington is 5.7h.

UV index

In October, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: An average UV index of 3 in October transforms into this advice:
Be vigilant - A duty to shield skin and eyes from injury exists. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Stay sun-safe with clothing that is both closely woven and worn loosely. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average October temperature in Farmington?

In Farmington, in October, the average high-temperature is 62.1°F (16.7°C), and the average low-temperature is 46°F (7.8°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 appraised at 87.8°F (31°C).

What is the least humid month in Farmington?

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

What is the average humidity in October in Farmington?

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

How much does it rain in Farmington in October?

In Farmington, during October, the rain falls for 11.6 days and regularly aggregates up to 2.83" (72mm) of precipitation.

When does it start to snow in Farmington?

October is the first month it typically snows in Farmington. Throughout October, in the average 0.2 snowfall days, it receives 0.04" (1mm) of snow.

How many hours of daylight does Farmington have in October?

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

When are sunrise and sunset in October in Farmington?

On the first day of October in Farmington, Illinois, sunrise is at 6:57 am and sunset at 6:41 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 5:57 pm CDT.

How long on average sun shines in October in Farmington?

In Farmington, Illinois, the average sunshine duration in October is 5.7h.

How high is the UV index in October in Farmington?

In October, the average daily maximum UV index in Farmington, Illinois, is 3. A UV Index of 3 to 5 symbolizes a moderate health threat from unprotected exposure to UV radiation.
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
Farmington, IL

Average temperature in October - Farmington, IL
  • Average high temperature in October: 62.1°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (30.4°F).

  • Average low temperature in October: 46°F

The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).

Average pressure in October
Farmington, IL

Average pressure in October - Farmington, IL
  • Average pressure in October: 30.01"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).

Average wind speed in October
Farmington, IL

Average wind speed in October - Farmington, IL
  • Average wind speed in October: 9.3mph

The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).

Average humidity in October
Farmington, IL

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

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).

Average rainfall in October
Farmington, IL

Average rainfall in October - Farmington, IL
  • Average rainfall in October: 2.83"

The wettest month (with the highest rainfall) is May (4.29").
The driest months (with the least rainfall) are February and December (1.42").

Average rainfall days in October
Farmington, IL

Average rainfall days in October - Farmington, IL
  • Average rainfall days in October: 11.6 days

The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is February (5.8 days).

Average snowfall in October
Farmington, IL

Average snowfall in October - Farmington, IL
  • Average snowfall in October: 0.04"

The month with the highest snowfall is January (3.78").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in October
Farmington, IL

Average snowfall days in October - Farmington, IL
  • Average snowfall days in October: 0.2 days

The month with the highest number of snowfall days is January (10.6 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
Farmington, IL

Average daylight in October / Average sunshine in October - Farmington, 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: 5h and 4min

The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

Average sunshine days in October
Farmington, IL

Average sunshine days in October - Farmington, IL
  • Average sunshine days in October: 17.3 days

The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is June (11.3 days).

Average UV index in October
Farmington, IL

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

Average cloud cover in October
Farmington, IL

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

The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is September (Cloud cover 29).

Average visibility in October
Farmington, IL

Average visibility in October - Farmington, 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).

Farmington, Illinois, USA

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