October weather forecast
Trivoli, IL

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Weather in October

October, the same as September, is another comfortable autumn month in Trivoli, Illinois, with an average temperature fluctuating between 62.1°F (16.7°C) and 46°F (7.8°C).

Temperature

With October's arrival, Trivoli's weather changes as the average high-temperature falls from a warm 76.3°F (24.6°C) in September to an enjoyable 62.1°F (16.7°C). An average nighttime temperature of 46°F (7.8°C) is recorded during October.

Humidity

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

Rainfall

In Trivoli, in October, it is raining for 11.6 days, with typically 2.83" (72mm) of accumulated precipitation. Throughout the year, there are 145.3 rainfall days, and 28.62" (727mm) of precipitation is accumulated.

Snowfall

January through April, October through December are months with snowfall. 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 Trivoli, during the entire year, snow falls for 30.9 days and aggregates up to 11.3" (287mm) of snow.

Daylight

In Trivoli, the average length of the day in October is 11h and 7min.
On the first day of the month, sunrise is at 6:56 am and sunset at 6:41 pm. On the last day of October, sunrise is at 7:29 am and sunset at 5:56 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 moderate health risk from exposure to the Sun's UV radiation for the average person.
Note: In October, the maximum UV index of 3 transforms into these recommendations:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Updated: Jun 25, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in October?

The average high-temperature, in October, in Trivoli, is 62.1°F (16.7°C), while the average low-temperature is 46°F (7.8°C). In August, the average heat index (a.k.a. 'feels like', 'real feel'), which combines relative humidity and air temperature, is evaluated at 87.8°F (31°C).

What is the least humid month?

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

What is the average humidity in October?

The average relative humidity in October is 72%.

How much does it rain in October?

In Trivoli, in October, during 11.6 rainfall days, 2.83" (72mm) of precipitation is typically accumulated.

When does it start snowing?

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

How many hours of daylight does Trivoli have in October?

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

What time are sunrise and sunset in October?

In October, on the first day of the month, sunrise is at 6:56 am and sunset at 6:41 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 5:56 pm CDT.

How many hours of sunshine does Trivoli have in October?

In October, the average sunshine duration is 5.7h.

How high is the UV index in October in Trivoli?

The average daily maximum UV index in October is 3. A UV Index estimate of 3 to 5 represents a moderate vulnerability from 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
Trivoli, IL

Average temperature in October - Trivoli, 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
Trivoli, IL

Average pressure in October - Trivoli, 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
Trivoli, IL

Average wind speed in October - Trivoli, 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
Trivoli, IL

Average humidity in October - Trivoli, 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
Trivoli, IL

Average rainfall in October - Trivoli, 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
Trivoli, IL

Average rainfall days in October - Trivoli, 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
Trivoli, IL

Average snowfall in October - Trivoli, 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
Trivoli, IL

Average snowfall days in October - Trivoli, 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
Trivoli, IL

Average daylight in October / Average sunshine in October - Trivoli, 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
Trivoli, IL

Average sunshine days in October - Trivoli, 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
Trivoli, IL

Average UV index in October - Trivoli, 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
Trivoli, IL

Average cloud cover in October - Trivoli, 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
Trivoli, IL

Average visibility in October - Trivoli, 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).

Trivoli, Illinois, USA

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