Bismarck
North Dakota, USA
Long-term weather forecast
Long-term weather forecast

October weather forecast and climate
Bismarck, ND

An across the park view of the historical building of the State Capitol in Bismarck, North Dakota
An across the park view of the historical building of the State Capitol in Bismarck, North Dakota
October, the same as September, is another fresh autumn month in Bismarck, North Dakota, with average temperature varying between 38.5°F (3.6°C) and 54°F (12.2°C).

Temperature

In October, the average high-temperature declines considerably, from an agreeable 72°F (22.2°C) in September, to a fresh 54°F (12.2°C). In October, the average low-temperature is 38.5°F (3.6°C).

Humidity

In Bismarck, North Dakota, the average relative humidity is 63%.

Rainfall

In Bismarck, North Dakota, during October, the rain falls for 8.6 days and regularly aggregates up to 1.3" (33mm) of precipitation. Throughout the year, there are 105.9 rainfall days, and 15" (381mm) of precipitation is accumulated.

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. Throughout the year, there are 73.7 snowfall days, and 23.11" (587mm) of snow is accumulated.

Daylight

In October, the average length of the day in Bismarck is 10.9h.

Sunshine

In October, the average sunshine is 6.5h.

UV index

The average daily maximum UV index in Bismarck is 2. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to the Sun's UV rays for the ordinary person.
Note: The average daily UV index of 2 transform into the following instructions:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.

What is the temperature in October in Bismarck?

In Bismarck, in October, the average high-temperature is 54°F (12.2°C), and the average low-temperature is 38.5°F (3.6°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, North Dakota, the rain falls for 8.6 days. Throughout October, 1.3" (33mm) of precipitation is accumulated.

When does it start to snow 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.

What is the average length of the day in October in Bismarck?

In October, the average length of the day in Bismarck is 10.9h.

How long on average sun shines in October in Bismarck?

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

What is the UV index reading in October in Bismarck?

In Bismarck, the average daily maximum UV index in October is 2. A UV Index reading of 2, and below, represents a low health risk from the exposure to the Sun's UV rays.
Average temperature in October - Bismarck, ND
  • Average high temperature in October: 12.2°C

The warmest month (with the highest average high temperature) is July (28.7°C).
The month with the lowest average high temperature is January (-6.2°C).

  • Average low temperature in October: 3.6°C

The month with the highest average low temperature is July (16.3°C).
The coldest month (with the lowest average low temperature) is January (-14.4°C).

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%).

Average rainfall in October - Bismarck, ND
  • Average rainfall in October: 33mm

The wettest month (with the highest rainfall) is June (58mm).
The driest month (with the lowest rainfall) is January (15mm).

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 lowest number of rainy days is February (3.4 days).

Average snowfall in October - Bismarck, ND
  • Average snowfall in October: 42mm

The month with the highest snowfall is February (110mm).
Months with the lowest snowfall are June, July, August and September (0mm).

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).
Months with the lowest number of snowfall days are June, July, August and September (0 days).

Average daylight in October / Average sunshine in October - Bismarck, ND
  • Average daylight in October: 10.9h

The month with the longest days is June (Average daylight: 15.8h).
The month with shortest days is December (Average daylight: 8.6h).

  • Average sunshine in October: 6.5h

The month with most sunshine is July (Average sunshine: 11.4h).
The month with least sunshine is January (Average sunshine: 3.8h).

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).
Months with the lowest UV index are January, November and December (UV index 1).