October weather forecast
Illmo, MO

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Weather in October

October, the same as September, in Illmo, Missouri, is an agreeable autumn month, with temperature in the range of an average high of 68.9°F (20.5°C) and an average low of 50.7°F (10.4°C).

Temperature

October involves a decrease in temperature, down from a moderately hot 81.1°F (27.3°C) in September to a pleasant 68.9°F (20.5°C). Illmo records a consistent low-temperature of 50.7°F (10.4°C) during October nights.

Humidity

October is the least humid month, with an average relative humidity of 69%.

Rainfall

In Illmo, in October, it is raining for 10.5 days, with typically 2.83" (72mm) of accumulated precipitation. In Illmo, during the entire year, the rain falls for 158.6 days and collects up to 35.59" (904mm) 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 0.1 snowfall days, it receives 0.08" (2mm) of snow. Throughout the year, there are 11.2 snowfall days, and 4.92" (125mm) of snow is accumulated.

Daylight

The average length of the day in October is 11h and 13min.
On the first day of the month, sunrise is at 6:54 am and sunset at 6:40 pm. On the last day of October, in Illmo, sunrise is at 7:22 am and sunset at 6:01 pm CDT.

Sunshine

The average sunshine in October is 6.5h.

UV index

The average daily maximum UV index in October is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: A maximum high daily UV index of 3 during October translates into the following directions:
Exercise prevention - Protecting skin and eyes from harm is required. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Updated: Jul 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average October temperature?

The average high-temperature, in October, in Illmo, is 68.9°F (20.5°C), while the average low-temperature is 50.7°F (10.4°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines relative humidity and air temperature, in September is computed to be 86°F (30°C).

What is the least humid month?

With an average relative humidity of 69%, October is the least humid month.

What is the average humidity in October?

In Illmo, the average relative humidity in October is 69%.

How many days does it rain in October?

In Illmo, in October, it is raining for 10.5 days, with typically 2.83" (72mm) of accumulated precipitation.

When does it start to snow?

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

How many hours of daylight does Illmo have in October?

In October, the average day length is 11h and 13min.

When is the sunrise / sunset in October?

In October, on the first day of the month, sunrise is at 6:54 am and sunset at 6:40 pm. On the last day of the month, in Illmo, sunrise is at 7:22 am and sunset at 6:01 pm CDT.

How long on average sun shines in October?

In October, the average sunshine duration is 6.5h.

How high is the UV index in October in Illmo?

The average daily maximum UV index in October is 3. A UV Index of 3 to 5 symbolizes a moderate vulnerability from exposure to Sun's UV rays.
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
Illmo, MO

Average temperature in October - Illmo, MO
  • Average high temperature in October: 68.9°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 (41°F).

  • Average low temperature in October: 50.7°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (27.9°F).

Average pressure in October
Illmo, MO

Average pressure in October - Illmo, MO
  • 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).

Average wind speed in October
Illmo, MO

Average wind speed in October - Illmo, MO
  • Average wind speed in October: 7.7mph

The windiest months (with the highest average wind speed) are January and February (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).

Average humidity in October
Illmo, MO

Average humidity in October - Illmo, MO
  • Average humidity in October: 69%

The months with the highest relative humidity are March and May (78%).
The month with the lowest relative humidity is October (69%).

Average rainfall in October
Illmo, MO

Average rainfall in October - Illmo, MO
  • Average rainfall in October: 2.83"

The wettest month (with the highest rainfall) is April (4.33").
The driest month (with the least rainfall) is September (1.5").

Average rainfall days in October
Illmo, MO

Average rainfall days in October - Illmo, MO
  • Average rainfall days in October: 10.5 days

The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is January (9.8 days).

Average snowfall in October
Illmo, MO

Average snowfall in October - Illmo, MO
  • Average snowfall in October: 0.08"

The month with the highest snowfall is February (2.17").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in October
Illmo, MO

Average snowfall days in October - Illmo, MO
  • Average snowfall days in October: 0.1 days

The month with the highest number of snowfall days is January (3.7 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
Illmo, MO

Average daylight in October / Average sunshine in October - Illmo, MO
  • 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 42min).

  • Average sunshine in October: 6h and 3min

The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

Average sunshine days in October
Illmo, MO

Average sunshine days in October - Illmo, MO
  • Average sunshine days in October: 18.6 days

The month with the most sunshine days is October (18.6 days).
The month with the least sunshine days is July (11.9 days).

Average UV index in October
Illmo, MO

Average UV index in October - Illmo, MO
  • 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).

Average cloud cover in October
Illmo, MO

Average cloud cover in October - Illmo, MO
  • Average cloud cover in October: 31

The month with the most cloud cover is February (Cloud cover 48).
The months with the least cloud cover are June, August and September (Cloud cover 27).

Average visibility in October
Illmo, MO

Average visibility in October - Illmo, MO
  • 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).

Illmo, Missouri, USA

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