October weather forecast
Frederick, IL

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Weather in October

October, the same as September, is another enjoyable autumn month in Frederick, Illinois, with temperature in the range of an average low of 47.3°F (8.5°C) and an average high of 63.9°F (17.7°C).

Temperature

The onset of October is marked by a decrease in temperature, transitioning from a moderately hot 77.9°F (25.5°C) in September to an enjoyable 63.9°F (17.7°C). During October, Frederick sees a mean low-temperature of 47.3°F (8.5°C).

Humidity

With an average relative humidity of 71%, October is the least humid month.

Rainfall

In October, the rain falls for 10.8 days. Throughout October, 2.4" (61mm) of precipitation is accumulated. In Frederick, during the entire year, the rain falls for 142.2 days and collects up to 27.95" (710mm) of precipitation.

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. Throughout the year, in Frederick, there are 31.2 snowfall days, and 11.85" (301mm) of snow is accumulated.

Daylight

In October, the average length of the day in Frederick, Illinois, is 11h and 8min.
On the first day of October, sunrise is at 6:58 am and sunset at 6:43 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 5:59 pm CDT.

Sunshine

The average sunshine in October in Frederick is 5.7h.

UV index

In October, the average daily maximum UV index in Frederick, Illinois, is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the average person.
Note: During October, 3 as the daily maximum UV index converts into the following advice:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Frederick in October?

The high-temperature in Frederick, Illinois, during October is 63.9°F (17.7°C) and the low-temperature is 47.3°F (8.5°C). In August, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, is computed to be 91.4°F (33°C).

What is the least humid month in Frederick?

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

What is the average humidity in October in Frederick?

The average relative humidity in October in Frederick, Illinois, is 71%.

How many days does it rain in October in Frederick?

In October, in Frederick, Illinois, the rain falls for 10.8 days. Throughout October, 2.4" (61mm) of precipitation is accumulated.

When does it start snowing in Frederick?

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

How many hours of daylight does Frederick have in October?

In October, the average day length in Frederick is 11h and 8min.

When are sunrise and sunset in October in Frederick?

In October, on the first day of the month, sunrise is at 6:58 am and sunset at 6:43 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 5:59 pm CDT.

How many hours of sunshine does Frederick have in October?

The average sunshine duration in October in Frederick, Illinois, is 5.7h.

How high is the UV index in October in Frederick?

The average daily maximum UV index in October is 3. A UV Index of 3 to 5 symbolizes a moderate health threat from exposure to the Sun's 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
Frederick, IL

Average temperature in October - Frederick, IL
  • Average high temperature in October: 63.9°F

The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (32.7°F).

  • Average low temperature in October: 47.3°F

The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).

Average pressure in October
Frederick, IL

Average pressure in October - Frederick, IL
  • Average pressure in October: 30.02"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in October
Frederick, IL

Average wind speed in October - Frederick, IL
  • Average wind speed in October: 8.8mph

The windiest months (with the highest average wind speed) are January, February and April (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).

Average humidity in October
Frederick, IL

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

The month with the highest relative humidity is July (82%).
The month with the lowest relative humidity is October (71%).

Average rainfall in October
Frederick, IL

Average rainfall in October - Frederick, IL
  • Average rainfall in October: 2.4"

The wettest month (with the highest rainfall) is May (3.62").
The driest month (with the least rainfall) is December (1.61").

Average rainfall days in October
Frederick, IL

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

The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is February (6.8 days).

Average snowfall in October
Frederick, IL

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

The month with the highest snowfall is January (4.21").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in October
Frederick, IL

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

The month with the highest number of snowfall days is January (10.1 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
Frederick, IL

Average daylight in October / Average sunshine in October - Frederick, 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 24min).

  • Average sunshine in October: 5h and 4min

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

Average sunshine days in October
Frederick, IL

Average sunshine days in October - Frederick, IL
  • Average sunshine days in October: 18.7 days

The month with the most sunshine days is October (18.7 days).
The month with the least sunshine days is May (10.9 days).

Average UV index in October
Frederick, IL

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

The months with the highest UV index are 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
Frederick, IL

Average cloud cover in October - Frederick, IL
  • Average cloud cover in October: 36

The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are July, August and September (Cloud cover 30).

Average visibility in October
Frederick, IL

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

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

Frederick, Illinois, USA

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