October weather forecast
Saint Joseph, IL

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Weather in October

October, like September, in Saint Joseph, Illinois, is another comfortable autumn month, with an average temperature ranging between max 63.5°F (17.5°C) and min 47.8°F (8.8°C).

Temperature

The shift to October brings a decrease in the average high-temperature, falling from a moderately hot 76.1°F (24.5°C) in September to an enjoyable 63.5°F (17.5°C). In October, Saint Joseph's temperature tends to fall to an average low of 47.8°F (8.8°C) during the night.

Humidity

October is the least humid month, with an average relative humidity of 70%.

Rainfall

In October, in Saint Joseph, Illinois, the rain falls for 10.6 days. Throughout October, 1.5" (38mm) of precipitation is accumulated. Throughout the year, there are 129.9 rainfall days, and 18.15" (461mm) of precipitation is accumulated.

Snowfall

In Saint Joseph, snow does not fall in May through October.

Daylight

The average length of the day in October is 11h and 8min.
On the first day of the month, sunrise is at 6:49 am and sunset at 6:33 pm. On the last day of October, in Saint Joseph, sunrise is at 7:21 am and sunset at 5:50 pm CDT.

Sunshine

In Saint Joseph, the average sunshine in October is 6.2h.

UV index

In October, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the average person.
Note: The maximum daily UV index of 3 in October interprets into the following recommendations:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. To avoid the Sun's strongest rays, limit exposure around the mid-day period. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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Frequently asked questions

What is the usual temperature for Saint Joseph in October?

In Saint Joseph, in October, the average high-temperature is 63.5°F (17.5°C), and the average low-temperature is 47.8°F (8.8°C). In August, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is estimated at 86°F (30°C).

What is the least humid month in Saint Joseph?

October is the least humid month in Saint Joseph, with an average relative humidity of 70%.

What is the average humidity in October in Saint Joseph?

In Saint Joseph, Illinois, the average relative humidity in October is 70%.

How much does it rain in Saint Joseph in October?

In Saint Joseph, Illinois, in October, during 10.6 rainfall days, 1.5" (38mm) of precipitation is typically accumulated.

When it does not snow in Saint Joseph?

In Saint Joseph, snow does not fall in May through October.

Does it snow in Saint Joseph in October?

In Saint Joseph, Illinois, in October, it doesn't snow. In November, it regularly snows.

What is the average length of the day in October in Saint Joseph?

The average day length in October in Saint Joseph is 11h and 8min.

What time are sunrise and sunset in October in Saint Joseph?

In October, on the first day of the month, sunrise is at 6:49 am and sunset at 6:33 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 5:50 pm CDT.

How many hours of sunshine does Saint Joseph have in October?

The average sunshine duration in October in Saint Joseph, Illinois, is 6.2h.

What is the UV index intensity in October in Saint Joseph?

In Saint Joseph, the average daily maximum UV index in October is 3. A UV Index estimate of 3 to 5 represents a moderate health threat 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
Saint Joseph, IL

Average temperature in October - Saint Joseph, IL
  • Average high temperature in October: 63.5°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (31.8°F).

  • Average low temperature in October: 47.8°F

The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).

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Average pressure in October
Saint Joseph, IL

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

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in October
Saint Joseph, IL

Average wind speed in October - Saint Joseph, IL
  • Average wind speed in October: 9.5mph

The windiest month (with the highest average wind speed) is January (10.8mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).

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Average humidity in October
Saint Joseph, IL

Average humidity in October - Saint Joseph, IL
  • Average humidity in October: 70%

The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (70%).

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Average rainfall in October
Saint Joseph, IL

Average rainfall in October - Saint Joseph, IL
  • Average rainfall in October: 1.5"

The wettest month (with the highest rainfall) is April (2.24").
The driest month (with the least rainfall) is September (0.94").

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Average rainfall days in October
Saint Joseph, IL

Average rainfall days in October - Saint Joseph, IL
  • Average rainfall days in October: 10.6 days

The month with the highest number of rainy days is May (15.3 days).
The months with the least rainy days are January and February (6 days).

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Average snowfall in October
Saint Joseph, IL

Average snowfall in October - Saint Joseph, IL
  • Average snowfall in October: 0"

The month with the highest snowfall is January (1.85").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in October
Saint Joseph, IL

Average snowfall days in October - Saint Joseph, IL
  • Average snowfall days in October: 0.1 days

The month with the highest number of snowfall days is January (8.7 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
Saint Joseph, IL

Average daylight in October / Average sunshine in October - Saint Joseph, 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: 6h and 1min

The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

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Average sunshine days in October
Saint Joseph, IL

Average sunshine days in October - Saint Joseph, IL
  • Average sunshine days in October: 18.5 days

The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is July (11.8 days).

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Average UV index in October
Saint Joseph, IL

Average UV index in October - Saint Joseph, 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).

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Average cloud cover in October
Saint Joseph, IL

Average cloud cover in October - Saint Joseph, IL
  • Average cloud cover in October: 36

The month with the most cloud cover is January (Cloud cover 57).
The months with the least cloud cover are August and September (Cloud cover 31).

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Average visibility in October
Saint Joseph, IL

Average visibility in October - Saint Joseph, IL
  • Average visibility in October: 6mi

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

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Saint Joseph, Illinois, USA

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