October weather forecast
Royalton, IL

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Weather in October

October, like September, in Royalton, Illinois, is another comfortable autumn month, with an average temperature ranging between min 49.3°F (9.6°C) and max 67.5°F (19.7°C).

Temperature

Royalton's October weather comes with a decrease in average high-temperatures, moving from a moderately hot 80.4°F (26.9°C) in September to a comfortable 67.5°F (19.7°C). Throughout October, the temperature falls to an average low of 49.3°F (9.6°C).

Humidity

October is the least humid month in Royalton, with an average relative humidity of 71%.

Rainfall

In October, in Royalton, the rain falls for 10.8 days. Throughout October, 2.76" (70mm) of precipitation is accumulated. Throughout the year, in Royalton, there are 158.6 rainfall days, and 34.69" (881mm) of precipitation is accumulated.

Snowfall

January through April, October through December are months with snowfall. October is the first month it typically snows in Royalton. Throughout October, in the average 0.1 snowfall days, it receives 0.08" (2mm) of snow. Throughout the year, there are 15.9 snowfall days, and 5.71" (145mm) of snow is accumulated.

Daylight

The average length of the day in October is 11h and 12min.
On the first day of the month, sunrise is at 6:52 am and sunset at 6:39 pm. On the last day of October, sunrise is at 7:21 am and sunset at 5:58 pm CDT.

Sunshine

The average sunshine in October is 6.5h.

UV index

In October, the average daily maximum UV index in Royalton, Illinois, is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: A typical high UV index of 3 in October suggests the following recommendations:
Exercise caution. Those with pale skin may experience burns in less than half an hour. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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 Royalton?

An average high-temperature, in October, in Royalton, is 67.5°F (19.7°C) and the average low-temperature is 49.3°F (9.6°C). In August, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines relative humidity and air temperature, is calculated to be 96.8°F (36°C).

What is the least humid month in Royalton?

October is the least humid month in Royalton, with an average relative humidity of 71%.

What is the average humidity in October in Royalton?

The average relative humidity in October in Royalton is 71%.

How many days does it rain in October in Royalton?

In Royalton, in October, during 10.8 rainfall days, 2.76" (70mm) of precipitation is typically accumulated.

When does it start to snow in Royalton?

October is the first month it typically snows in Royalton, Illinois. Throughout October, in the average 0.1 snowfall days, it receives 0.08" (2mm) of snow.

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

In October, the average day length in Royalton is 11h and 12min.

What time are sunrise and sunset in October in Royalton?

On the first day of October in Royalton, sunrise is at 6:52 am and sunset at 6:39 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 5:58 pm CDT.

How long on average sun shines in October in Royalton?

The average sunshine duration in October in Royalton, Illinois, is 6.5h.

How high is the UV index in October in Royalton?

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

Average temperature in October - Royalton, IL
  • Average high temperature in October: 67.5°F

The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (39.6°F).

  • Average low temperature in October: 49.3°F

The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (26.2°F).

Average pressure in October
Royalton, IL

Average pressure in October - Royalton, IL
  • Average pressure in October: 30.04"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in October
Royalton, IL

Average wind speed in October - Royalton, IL
  • Average wind speed in October: 7.8mph

The windiest month (with the highest average wind speed) is January (9.4mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).

Average humidity in October
Royalton, IL

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

The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (71%).

Average rainfall in October
Royalton, IL

Average rainfall in October - Royalton, IL
  • Average rainfall in October: 2.76"

The wettest month (with the highest rainfall) is April (4.49").
The driest month (with the least rainfall) is September (1.85").

Average rainfall days in October
Royalton, IL

Average rainfall days in October - Royalton, IL
  • Average rainfall days in October: 10.8 days

The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is January (9.4 days).

Average snowfall in October
Royalton, IL

Average snowfall in October - Royalton, IL
  • Average snowfall in October: 0.08"

The month with the highest snowfall is February (1.73").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in October
Royalton, IL

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

The months with the highest number of snowfall days are January and February (4.8 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
Royalton, IL

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

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in October: 6h and 3min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).

Average sunshine days in October
Royalton, IL

Average sunshine days in October - Royalton, IL
  • Average sunshine days in October: 18.5 days

The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is May (11.3 days).

Average UV index in October
Royalton, IL

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

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

Average cloud cover in October
Royalton, IL

Average cloud cover in October - Royalton, IL
  • Average cloud cover in October: 32

The month with the most cloud cover is February (Cloud cover 50).
The months with the least cloud cover are June and August (Cloud cover 27).

Average visibility in October
Royalton, IL

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

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

Royalton, Illinois, USA

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