nomadseason

October Weather in Bismarck, United States

Last updated: June 24, 2025

In Bismarck, United States, the average temperature in October is a mild 14°C (57°F), making it a comfortable time to visit. However, be prepared for a range of temperatures, as it can drop to a chilly -4°C (26°F) or rise to a warm 33°C (91°F). With an average precipitation of 121 mm (4.7 in) over 11 days, and a relatively high average humidity of 82%, it's wise to pack accordingly!

October Temperature in Bismarck

In October in Bismarck, the average temperature is 14°C (57°F), with maximums reaching 33°C (91°F) and minimums dropping as low as -4°C (26°F). This varied climate means that travelers should be prepared for both warm days and chilly nights.

October Weather in Bismarck: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Bismarck, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bismarck, October typically has an average temperature of 14°C (57°F), with highs reaching up to 33°C (91°F) and lows dropping to around -4°C (26°F).
JanFebMarAprMayJunJulAugSepOctNovDec293142526474777470574135
Data source: Temperature data for Bismarck generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

October Precipitation in Bismarck

In Bismarck in October, the total precipitation amount reaches 121 mm (4.7 in) over a span of 11 days.

October Precipitation Trends in Bismarck

The chart displays monthly precipitation patterns in Bismarck, with values for each month alongside October’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October’s conditions compare to those of other months. In Bismarck, October typically receives around 121 mm (4.7 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec777811011015110588111711217760
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

October Humidity in Bismarck

In Bismarck in October, humidity is 82%. With an average temperature of 14°C (57°F), this humidity feels like a thick blanket enveloping you, making outdoor activities uncomfortable and travel more challenging due to the heavy, damp air.

October Average Humidity in Bismarck

This chart illustrates the average monthly humidity levels in Bismarck, with October’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In October, average humidity in Bismarck is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%83%84%85%79%82%80%81%80%82%88%84%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Bismarck

In Bismarck in October, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Bismarck, you can refer to this Hourly UV Index in Bismarck.

Maximum UV Index Levels in Bismarck for October

The chart shows the monthly maximum UV Index (UVI) for Bismarck in October, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In October, the maximum UV index in Bismarck typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910111098642
Data source: Bismarck October UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How October Weather in Bismarck Compares to Other Months

Weather in Bismarck varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in Bismarck, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Bismarck, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)77 mm (3.0 inches)82%moderate
February Weather0°C (31°F)78 mm (3.1 inches)83%moderate
March Weather6°C (42°F)110 mm (4.3 inches)84%high
April Weather11°C (52°F)110 mm (4.3 inches)85%very high
May Weather18°C (65°F)151 mm (6.0 inches)79%very high
June Weather23°C (74°F)105 mm (4.1 inches)82%extreme
July Weather25°C (77°F)88 mm (3.5 inches)80%very high
August Weather24°C (75°F)111 mm (4.4 inches)81%very high
September Weather21°C (70°F)71 mm (2.8 inches)80%very high
October Weather14°C (57°F)121 mm (4.7 inches)82%high
November Weather5°C (41°F)77 mm (3.0 inches)88%moderate
December Weather2°C (36°F)60 mm (2.4 inches)84%low

Compare Bismarck's Climate with Cities Worldwide