October weather forecast
Round Lake, IL

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Weather in October

October, like September, is a moderate autumn month in Round Lake, Illinois, with an average temperature ranging between max 59°F (15°C) and min 45.1°F (7.3°C).

Temperature

The average high-temperature decreases in October, shifting from an agreeable 72.3°F (22.4°C) in September to a mild 59°F (15°C). Throughout the month of October, Round Lake sees a steady low-temperature average of 45.1°F (7.3°C).

Humidity

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

Rainfall

In Round Lake, during October, the rain falls for 13.2 days and regularly aggregates up to 1.89" (48mm) of precipitation. In Round Lake, during the entire year, the rain falls for 142.3 days and collects up to 21.97" (558mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. October is the first month it typically snows in Round Lake. Throughout October, in the average 0.5 snowfall days, it receives 0.28" (7mm) of snow. In Round Lake, during the entire year, snow falls for 49.5 days and aggregates up to 13.54" (344mm) of snow.

Daylight

The average length of the day in October is 11h and 3min.
On the first day of October, sunrise is at 6:50 am and sunset at 6:33 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 5:46 pm CDT.

Sunshine

In Round Lake, the average sunshine in October is 5.5h.

UV index

In Round Lake, the average daily maximum UV index in October is 2. A UV Index of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum UV index, 2 during October, leads to the following recommendations:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Stay sun-safe with clothing that is both closely woven and worn loosely. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Updated: Aug 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in October?

Round Lake in October has an average high-temperature of 59°F (15°C) and an average low-temperature of 45.1°F (7.3°C).

What is the least humid month?

The least humid month is October, with an average relative humidity of 74%.

What is the average humidity in October?

In October, the average relative humidity is 74%.

How much does it rain in October?

In Round Lake, in October, it is raining for 13.2 days, with typically 1.89" (48mm) of accumulated precipitation.

When does it start snowing?

October is the first month it typically snows. Throughout October, in the average 0.5 snowfall days, it receives 0.28" (7mm) of snow.

What is the average length of the day in October?

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

When is the sunrise / sunset in October?

In October, on the first day of the month, sunrise is at 6:50 am and sunset at 6:33 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 5:46 pm CDT.

How many hours of sunshine does Round Lake have in October?

In Round Lake, the average sunshine duration in October is 5.5h.

What is the UV index intensity in October?

In October, the average daily maximum UV index in Round Lake is 2. A UV Index of 2, and less, symbolizes a minimal hazard to health from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in October
Round Lake, IL

Average temperature in October - Round Lake, IL
  • Average high temperature in October: 59°F

The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (27.5°F).

  • Average low temperature in October: 45.1°F

The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (16.5°F).

Average pressure in October
Round Lake, IL

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

The months with the highest atmospheric pressure are January and February (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in October
Round Lake, IL

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

The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).

Average humidity in October
Round Lake, IL

Average humidity in October - Round Lake, 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%).

Average rainfall in October
Round Lake, IL

Average rainfall in October - Round Lake, IL
  • Average rainfall in October: 1.89"

The wettest month (with the highest rainfall) is April (2.72").
The driest month (with the least rainfall) is December (0.98").

Average rainfall days in October
Round Lake, IL

Average rainfall days in October - Round Lake, IL
  • Average rainfall days in October: 13.2 days

The month with the highest number of rainy days is July (17.5 days).
The month with the least rainy days is February (5 days).

Average snowfall in October
Round Lake, IL

Average snowfall in October - Round Lake, IL
  • Average snowfall in October: 0.28"

The month with the highest snowfall is January (3.58").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in October
Round Lake, IL

Average snowfall days in October - Round Lake, IL
  • Average snowfall days in October: 0.5 days

The month with the highest number of snowfall days is January (13.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in October /
Average sunshine in October
Round Lake, IL

Average daylight in October / Average sunshine in October - Round Lake, IL
  • Average daylight in October: 11h and 0min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in October: 5h and 3min

The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

Average sunshine days in October
Round Lake, IL

Average sunshine days in October - Round Lake, IL
  • Average sunshine days in October: 14.7 days

The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is May (10.8 days).

Average UV index in October
Round Lake, IL

Average UV index in October - Round Lake, 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).

Average cloud cover in October
Round Lake, IL

Average cloud cover in October - Round Lake, IL
  • Average cloud cover in October: 44

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 30).

Average visibility in October
Round Lake, IL

Average visibility in October - Round Lake, IL
  • Average visibility in October: 6mi

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

Round Lake, Illinois, USA

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