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, in Bismarck, North Dakota, is a moderate autumn month, with average temperature fluctuating between 57.6°F (14.2°C) and 32.2°F (0.1°C).

Temperature

In Bismarck, the average high-temperature declines considerably, from a pleasant 72.1°F (22.3°C) in September, to a mild 57.6°F (14.2°C). The average low-temperature, is 32.2°F (0.1°C).

Humidity

In Bismarck, the average relative humidity is 63.8%.

Rainfall

In Bismarck, North Dakota, during October, the rain falls for 6.6 days and regularly aggregates up to 1.3" (31.8mm) of precipitation. In Bismarck, during the entire year, the rain falls for 97.7 days and collects up to 17.9" (453.4mm) of precipitation.

Snowfall

Months with snowfall are January through May, September through December. In Bismarck, North Dakota, in October, snow falls for 1.4 days, with typically accumulated 2.2" (55.9mm) of snow. Throughout the year, there are 45.2 snowfall days, and 51.2" (1300.5mm) of snow is accumulated.

Daylight

The average length of the day in Bismarck is 10.9h.

Sunshine

The average sunshine is 6.2h.

UV index

In October, the average daily maximum UV index in Bismarck is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to the Sun's UV rays for the ordinary person.
Note: In October, the average maximum UV index of 3 translate into the following recommendations:
Take precautions - Protection against the skin and eye damage is obliged. 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. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the temperature in October in Bismarck?

In Bismarck, in October, the average high-temperature is 57.6°F (14.2°C), and the average low-temperature is 32.2°F (0.1°C).

What is the average humidity in October in Bismarck?

In Bismarck, the average relative humidity in October is 63.8%.

How many days does it rain in October in Bismarck?

In October, in Bismarck, the rain falls for 6.6 days. Throughout October, 1.3" (31.8mm) of precipitation is accumulated.

How many days does it snow in October in Bismarck?

In Bismarck, during October, snow falls for 1.4 days and regularly aggregates up to 2.2" (55.9mm) of snow.

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

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

How long on average sun shines in October in Bismarck?

In October, the average sunshine in Bismarck, North Dakota, is 6.2h.

What is the UV index intensity in October in Bismarck?

In Bismarck, North Dakota, the average daily maximum UV index in October is 3. A UV Index value of 3 to 5 symbolizes a moderate health threat from the exposure to the Sun's UV radiation.
Average temperature in October - Bismarck, ND
  • Average high temperature in October: 57.5°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (23.4°F).

  • Average low temperature in October: 32.2°F

The month with the highest average low temperature is July (57.4°F).
The coldest month (with the lowest average low temperature) is January (2.2°F).

Average humidity in October - Bismarck, ND
  • Average humidity in October: 63.8%

The month with the highest relative humidity is December (74.5%).
The month with the lowest relative humidity is May (60.1%).

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

The wettest month (with the highest rainfall) is June (3.2").
The driest month (with the lowest rainfall) is January (0.4").

Average rainfall days in October - Bismarck, ND
  • Average rainfall days in October: 6.6 days

The month with the highest number of rainy days is June (11.2 days).
The month with the lowest number of rainy days is October (6.6 days).

Average snowfall in October - Bismarck, ND
  • Average snowfall in October: 2.2"

The month with the highest snowfall is December (9.3").
Months with the lowest snowfall are June, July and August (0").

Average snowfall days in October - Bismarck, ND
  • Average snowfall days in October: 1.4 days

The month with the highest number of snowfall days is December (10 days).
Months with the lowest number of snowfall days are June, July and August (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: 6.2h

The month with most sunshine is July (Average sunshine: 11.4h).
The month with least sunshine is December (Average sunshine: 4h).

Average UV index in October - Bismarck, ND
  • Average UV index in October: 3

Months with the highest UV index are June and July (UV index 8).
Months with the lowest UV index are January, November and December (UV index 1).