October weather forecast
Bismarck, ND

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The historical building of the State Capitol in Bismarck, North Dakota
The historical building of the State Capitol in Bismarck, North Dakota

Weather in October

October in Bismarck is synonymous with autumn; the leaves are at their peak of color, temperatures continue to drop, and occasional rain showers persist. In a surprising turn of events, the city witnesses an unseasonal 1.65" (42mm) of snowfall. The transition of Bismarck from autumn to winter becomes perceptible throughout October. This becomes evident through the gradual drop in daylight hours and a marked change in foliage coloration.

Temperature

In October, the average high-temperature decreases considerably from an agreeable 72°F (22.2°C) in September to a cool 54°F (12.2°C). In the month of October, an average of 38.5°F (3.6°C) marks the low-temperature in Bismarck, North Dakota.

Humidity

In October, the average relative humidity is 63%.

Rainfall

In Bismarck, North Dakota, in October, it is raining for 8.6 days, with typically 1.3" (33mm) of accumulated precipitation. In Bismarck, during the entire year, the rain falls for 105.9 days and collects up to 15" (381mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. October is the first month it typically snows. Throughout October, in the average 3.2 snowfall days, it receives 1.65" (42mm) of snow. In Bismarck, during the entire year, snow falls for 73.7 days and aggregates up to 23.11" (587mm) of snow.

Daylight

In October, the average length of the day in Bismarck is 10h and 52min.
On the first day of the month, sunrise is at 7:42 am and sunset at 7:22 pm. On the last day of October, sunrise is at 8:25 am and sunset at 6:28 pm CDT.

Sunshine

In Bismarck, the average sunshine in October is 6.5h.

UV index

In Bismarck, the average daily maximum UV index in October is 2. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In October, a daily UV index of 2 turns into the following recommendations:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
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Frequently asked questions

What are the temperatures in Bismarck in October?

Bismarck in October has an average high-temperature of 54°F (12.2°C) and an average low-temperature of 38.5°F (3.6°C). In August, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines relative humidity and air temperature, is calculated to be 84.2°F (29°C).

What is the average humidity in October in Bismarck?

In Bismarck, the average relative humidity in October is 63%.

How much does it rain in Bismarck in October?

In October, in Bismarck, the rain falls for 8.6 days. Throughout October, 1.3" (33mm) of precipitation is accumulated.

When does it start snowing in Bismarck?

October is the first month it typically snows in Bismarck, North Dakota. Throughout October, in the average 3.2 snowfall days, it receives 1.65" (42mm) of snow.

How many hours of daylight does Bismarck have in October?

In October, the average day length in Bismarck, North Dakota, is 10h and 52min.

When is the sunrise / sunset in October in Bismarck?

In October, on the first day of the month, sunrise is at 7:42 am and sunset at 7:22 pm. On the last day of the month, in Bismarck, North Dakota, sunrise is at 8:25 am and sunset at 6:28 pm CDT.

How many hours of sunshine does Bismarck have in October?

The average sunshine duration in October in Bismarck, North Dakota, is 6.5h.

How high is the UV index in October in Bismarck?

The average daily maximum UV index in October is 2. A UV Index estimate of 2, and below, represents a minimal hazard to health 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
Bismarck, ND

Average temperature in October - Bismarck, ND
  • Average high temperature in October: 54°F

The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (20.8°F).

  • Average low temperature in October: 38.5°F

The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (6.1°F).

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Average pressure in October
Bismarck, ND

Average pressure in October - Bismarck, ND
  • Average pressure in October: 29.97"Hg

The month with the highest atmospheric pressure is February (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

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Average wind speed in October
Bismarck, ND

Average wind speed in October - Bismarck, ND
  • Average wind speed in October: 10.6mph

The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is August (8.3mph).

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Average humidity in October
Bismarck, ND

Average humidity in October - Bismarck, ND
  • Average humidity in October: 63%

The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (55%).

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Average rainfall in October
Bismarck, ND

Average rainfall in October - Bismarck, ND
  • Average rainfall in October: 1.3"

The wettest month (with the highest rainfall) is June (2.28").
The driest month (with the least rainfall) is January (0.59").

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Average rainfall days in October
Bismarck, ND

Average rainfall days in October - Bismarck, ND
  • Average rainfall days in October: 8.6 days

The month with the highest number of rainy days is May (15.5 days).
The month with the least rainy days is February (3.4 days).

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Average snowfall in October
Bismarck, ND

Average snowfall in October - Bismarck, ND
  • Average snowfall in October: 1.65"

The month with the highest snowfall is February (4.33").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in October
Bismarck, ND

Average snowfall days in October - Bismarck, ND
  • Average snowfall days in October: 3.2 days

The month with the highest number of snowfall days is December (15.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in October /
Average sunshine in October
Bismarck, ND

Average daylight in October / Average sunshine in October - Bismarck, ND
  • Average daylight in October: 10h and 5min

The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).

  • Average sunshine in October: 6h and 3min

The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

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Average sunshine days in October
Bismarck, ND

Average sunshine days in October - Bismarck, ND
  • Average sunshine days in October: 18.8 days

The month with the most sunshine days is September (19.9 days).
The month with the least sunshine days is March (12.3 days).

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Average UV index in October
Bismarck, ND

Average UV index in October - Bismarck, ND
  • Average UV index in October: 2

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, November and December (UV index 1).

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Average cloud cover in October
Bismarck, ND

Average cloud cover in October - Bismarck, ND
  • Average cloud cover in October: 36

The month with the most cloud cover is February (Cloud cover 60).
The months with the least cloud cover are July and August (Cloud cover 21).

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Average visibility in October
Bismarck, ND

Average visibility in October - Bismarck, ND
  • Average visibility in October: 6mi

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

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Bismarck, North Dakota, USA

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