October weather forecast
Forreston, IL

Weather in October

October, the same as September, in Forreston, Illinois, is another mild autumn month, with average temperature ranging between max 59.4°F (15.2°C) and min 43.7°F (6.5°C).

Temperature

In October, the average high-temperature drops, from an agreeable 72.9°F (22.7°C) in September, to a mild 59.4°F (15.2°C). In October, the average low-temperature is 43.7°F (6.5°C).

Humidity

April and October, with an average relative humidity of 75%, are the least humid months.

Rainfall

In Forreston, it is raining for 12.3 days, with typically 2.13" (54mm) of accumulated precipitation. Throughout the year, in Forreston, there are 145.6 rainfall days, and 23.43" (595mm) 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 0.55" (14mm) of snow. Throughout the year, in Forreston, Illinois, there are 45.5 snowfall days, and 13.15" (334mm) of snow is accumulated.

Daylight

In Forreston, Illinois, the average length of the day in October is 11h.

Sunshine

In Forreston, the average sunshine in October is 5.3h.

UV index

The average daily maximum UV index in Forreston is 2. A UV Index of 2, and less, symbolizes a minimal health hazard from the exposure to the Sun's UV rays for the average person.
Note: The average daily UV index of 2 transform into the following instructions:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What are the least humid months in Forreston?

Months with the lowest humidity are April and October, with an average relative humidity of 75%.

What is the average humidity in October in Forreston?

In Forreston, the average relative humidity in October is 75%.

How many days does it rain in October in Forreston?

In October, in Forreston, Illinois, the rain falls for 12.3 days. Throughout October, 2.13" (54mm) of precipitation is accumulated.

When does it start snowing in Forreston?

October is the first month it typically snows in Forreston. Throughout October, in the average 0.5 snowfall days, it receives 0.55" (14mm) of snow.

How many hours of daylight does Forreston have in October?

The average length of the day in October in Forreston is 11h.

How long on average sun shines in October in Forreston?

In October, the average sunshine is 5.3h.

What is the UV index intensity in October in Forreston?

In Forreston, Illinois, the average daily maximum UV index in October is 2. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to the UV radiation.

Average temperature in October
Forreston, IL

Average temperature in October - Forreston, IL
  • Average high temperature in October: 59.4°F

The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (26.1°F).

  • Average low temperature in October: 43.7°F

The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).

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Average pressure in October
Forreston, IL

Average pressure in October - Forreston, IL
  • Average pressure in October: 30"

The month with the highest atmospheric pressure is January (30.12").
The month with the lowest atmospheric pressure is June (29.91").

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Average wind speed in October
Forreston, IL

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

The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).

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Average humidity in October
Forreston, IL

Average humidity in October - Forreston, IL
  • Average humidity in October: 75%

The month with the highest relative humidity is January (87%).
Months with the lowest relative humidity are April and October (75%).

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Average rainfall in October
Forreston, IL

Average rainfall in October - Forreston, IL
  • Average rainfall in October: 2.13"

The wettest month (with the highest rainfall) is June (3.39").
The driest months (with the least rainfall) are February and December (1.06").

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Average rainfall days in October
Forreston, IL

Average rainfall days in October - Forreston, IL
  • Average rainfall days in October: 12.3 days

The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is February (5 days).

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Average snowfall in October
Forreston, IL

Average snowfall in October - Forreston, IL
  • Average snowfall in October: 0.55"

The month with the highest snowfall is January (3.54").
Months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in October
Forreston, IL

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

The month with the highest number of snowfall days is January (12.4 days).
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
Forreston, IL

Average daylight in October / Average sunshine in October - Forreston, IL
  • Average daylight in October: 11h

The month with the longest days is June (Average daylight: 15.2h).
The month with the shortest days is December (Average daylight: 9.2h).

  • Average sunshine in October: 5.3h

The month with the most sunshine is July (Average sunshine: 9.7h).
The month with the least sunshine is January (Average sunshine: 3.6h).

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Average sunshine days in October
Forreston, IL

Average sunshine days in October - Forreston, IL
  • Average sunshine days in October: 16.2 days

The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is June (9.7 days).

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Average UV index in October
Forreston, IL

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

Months with the highest UV index are May, June, July and August (UV index 5).
Months with the lowest UV index are January and December (UV index 1).

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Average cloud cover in October
Forreston, IL

Average cloud cover in October - Forreston, IL
  • Average cloud cover in October: 42

The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is September (Cloud cover 33).

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Average visibility in October
Forreston, IL

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

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

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