October weather forecast
Anna, IL

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Weather in October

October, like September, in Anna, Illinois, is another comfortable autumn month, with an average temperature varying between 49.5°F (9.7°C) and 67.8°F (19.9°C).

Temperature

A decrease in the average high-temperature is observed during October, shifting from a moderately hot 81°F (27.2°C) in September to a comfortable 67.8°F (19.9°C). During the October nights, an average temperature of 49.5°F (9.7°C) is observed.

Humidity

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

Rainfall

In Anna, in October, during 8.7 rainfall days, 2.01" (51mm) of precipitation is typically accumulated. Throughout the year, in Anna, Illinois, there are 143 rainfall days, and 27.44" (697mm) 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 0.1 snowfall days, it receives 0.08" (2mm) of snow. In Anna, during the entire year, snow falls for 14.9 days and aggregates up to 6.06" (154mm) of snow.

Daylight

In October, the average length of the day is 11h and 13min.
On the first day of October, sunrise is at 6:53 am and sunset at 6:39 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 5:59 pm CDT.

Sunshine

In October, the average sunshine is 6.5h.

UV index

The average daily maximum UV index in October is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily high UV index of 3 during October translates into the following recommendations:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Enhance your sun protection with tightly woven, yet airy clothing. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
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Frequently asked questions

What is the usual temperature for Anna in October?

The high-temperature, in October, in Anna, records 67.8°F (19.9°C), while the low-temperature is 49.5°F (9.7°C). In September, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines relative humidity and air temperature, is calculated to be 84.2°F (29°C).

What is the least humid month in Anna?

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

What is the average humidity in October in Anna?

The average relative humidity in October is 71%.

How much does it rain in Anna in October?

In Anna, in October, during 8.7 rainfall days, 2.01" (51mm) of precipitation is typically accumulated.

When does it start snowing in Anna?

October is the first month it typically snows in Anna. 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 Anna?

The average day length in October in Anna is 11h and 13min.

When are sunrise and sunset in October in Anna?

In October, on the first day of the month, sunrise is at 6:53 am and sunset at 6:39 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 5:59 pm CDT.

How many hours of sunshine does Anna have in October?

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

How high is the UV index in October in Anna?

The average daily maximum UV index in October in Anna, Illinois, is 3. A UV Index reading 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
Anna, IL

Average temperature in October - Anna, IL
  • Average high temperature in October: 67.8°F

The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (39.7°F).

  • Average low temperature in October: 49.5°F

The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (26.8°F).

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Average pressure in October
Anna, IL

Average pressure in October - Anna, 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 (29.94"Hg).

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Average wind speed in October
Anna, IL

Average wind speed in October - Anna, IL
  • Average wind speed in October: 7.6mph

The windiest month (with the highest average wind speed) is January (9mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).

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Average humidity in October
Anna, IL

Average humidity in October - Anna, 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%).

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Average rainfall in October
Anna, IL

Average rainfall in October - Anna, IL
  • Average rainfall in October: 2.01"

The wettest month (with the highest rainfall) is April (3.31").
The driest month (with the least rainfall) is September (1.3").

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Average rainfall days in October
Anna, IL

Average rainfall days in October - Anna, IL
  • Average rainfall days in October: 8.7 days

The month with the highest number of rainy days is July (15.9 days).
The month with the least rainy days is January (8.4 days).

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Average snowfall in October
Anna, IL

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

The month with the highest snowfall is February (1.89").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in October
Anna, IL

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

The month with the highest number of snowfall days is January (4.6 days).
The 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
Anna, IL

Average daylight in October / Average sunshine in October - Anna, 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 July (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 4h and 36min).

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Average sunshine days in October
Anna, IL

Average sunshine days in October - Anna, IL
  • Average sunshine days in October: 21 days

The month with the most sunshine days is October (21 days).
The month with the least sunshine days is July (12.8 days).

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Average UV index in October
Anna, IL

Average UV index in October - Anna, 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 and December (UV index 2).

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Average cloud cover in October
Anna, IL

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

The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is September (Cloud cover 28).

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Average visibility in October
Anna, IL

Average visibility in October - Anna, 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).

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Anna, Illinois, USA

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