October weather forecast
Bismarck, IL

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Weather in October

October, like September, in Bismarck, Illinois, is another comfortable autumn month, with an average temperature fluctuating between 63.1°F (17.3°C) and 47.1°F (8.4°C).

Temperature

Onset of October comes with a temperature decline, the average high falling from a warm 76.1°F (24.5°C) in September to a comfortable 63.1°F (17.3°C). In Bismarck, in October, the average low-temperature is a chilly 47.1°F (8.4°C).

Humidity

October is the least humid month in Bismarck, with an average relative humidity of 72%.

Rainfall

In Bismarck, in October, during 12.4 rainfall days, 2.05" (52mm) of precipitation is typically accumulated. Throughout the year, there are 151.8 rainfall days, and 25.63" (651mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Daylight

In Bismarck, the average length of the day in October is 11h and 7min.
On the first day of the month, sunrise is at 6:47 am and sunset at 6:32 pm. On the last day of October, sunrise is at 7:19 am and sunset at 5:48 pm CDT.

Sunshine

In October, the average sunshine is 6.3h.

UV index

The average daily maximum UV index in October is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: The UV index of 3 during October leads to these advisories:
Take measures. Individuals with light skin might experience burns in under 30 minutes. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Updated: Aug 18, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in October?

The average high-temperature and low-temperature during October are 63.1°F (17.3°C) and 47.1°F (8.4°C) respectively. In August, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, is evaluated at 86°F (30°C).

What is the least humid month?

October is the least humid month, with an average relative humidity of 72%.

What is the average humidity in October in Bismarck?

In October, the average relative humidity is 72%.

How much does it rain in October?

In Bismarck, during October, the rain falls for 12.4 days and regularly aggregates up to 2.05" (52mm) of precipitation.

When it does not snow?

In Bismarck, snow does not fall in May through October.

Does it snow in October?

In Bismarck, in October, it doesn't snow. In November, it regularly snows.

How many hours of daylight does Bismarck have in October?

In October, the average day length is 11h and 7min.

When is the sunrise / sunset in October?

In October, on the first day of the month, sunrise is at 6:47 am and sunset at 6:32 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 5:48 pm CDT.

How long on average sun shines in October?

In Bismarck, the average sunshine duration in October is 6.3h.

What is the UV index intensity in October?

The average daily maximum UV index in October is 3. A UV Index value of 3 to 5 symbolizes a moderate health threat 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
Bismarck, IL

Average temperature in October - Bismarck, IL
  • Average high temperature in October: 63.1°F

The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (31.6°F).

  • Average low temperature in October: 47.1°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).

Average pressure in October
Bismarck, IL

Average pressure in October - Bismarck, 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 (29.93"Hg).

Average wind speed in October
Bismarck, IL

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

The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).

Average humidity in October
Bismarck, IL

Average humidity in October - Bismarck, IL
  • Average humidity in October: 72%

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).

Average rainfall in October
Bismarck, IL

Average rainfall in October - Bismarck, IL
  • Average rainfall in October: 2.05"

The wettest month (with the highest rainfall) is April (3.23").
The driest months (with the least rainfall) are February and September (1.38").

Average rainfall days in October
Bismarck, IL

Average rainfall days in October - Bismarck, IL
  • Average rainfall days in October: 12.4 days

The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is February (6.6 days).

Average snowfall in October
Bismarck, IL

Average snowfall in October - Bismarck, IL
  • Average snowfall in October: 0"

The month with the highest snowfall is February (2.64").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in October
Bismarck, IL

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

The month with the highest number of snowfall days is January (10.6 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
Bismarck, IL

Average daylight in October / Average sunshine in October - Bismarck, 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 2min

The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

Average sunshine days in October
Bismarck, IL

Average sunshine days in October - Bismarck, IL
  • Average sunshine days in October: 16.5 days

The month with the most sunshine days is November (18 days).
The month with the least sunshine days is July (9.5 days).

Average UV index in October
Bismarck, IL

Average UV index in October - Bismarck, 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
Bismarck, IL

Average cloud cover in October - Bismarck, IL
  • Average cloud cover in October: 37

The month with the most cloud cover is January (Cloud cover 58).
The months with the least cloud cover are June, August and September (Cloud cover 32).

Average visibility in October
Bismarck, IL

Average visibility in October - Bismarck, 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).

Bismarck, Illinois, USA

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