The best times to visit Bismarck for ideal weather are

May 21st to October 28th

based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.

 

 


Other Bismarck Travel Info

Weather in Bismarck

Temperature

Average temperatures in Bismarck vary an incredible amount. Considering humidity, temperatures feel cold for about half of the year and otherwise nice with a low chance of precipitation most of the year. The area is less temperate than some — in the 38th percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Bismarck, the hottest months are July, August, and then June. See average monthly temperatures below. The warmest time of year is generally mid July where highs are regularly around 88.9°F (31.6°C) with temperatures rarely dropping below 57.5°F (14.2°C) at night.

Bismarck Temperatures (Fahrenheit)

Key
High
Average
Low

Bismarck Temperatures (Celsius)

Key
High
Average
Low

“Feels-Like” Temperatures

The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.

Bismarck Perceived Temperature (F)

Key
High
Average
Low

Bismarck Perceived Temperature (C)

Key
High
Average
Low

 

Average Bismarck Temperatures by Month

Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.

Show Fahrenheit

Month Avg. High (°F) Avg. Mean (°F) Avg. Low (°F)
Jan 27.1 13.9 2.2
Feb 27.2 14.4 3.2
Mar 44.7 29.9 18.2
Apr 58 42.6 28.5
May 70.4 54.9 40.1
Jun 79.4 64.9 50.3
Jul 87.3 71.8 56.5
Aug 86 69.3 54.1
Sep 78.5 60.5 45.4
Oct 61.1 45.7 32.9
Nov 45 30.2 18
Dec 27.4 15.5 4.7

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan -2.7 -10.1 -16.6
Feb -2.7 -9.8 -16
Mar 7.1 -1.2 -7.7
Apr 14.4 5.9 -1.9
May 21.3 12.7 4.5
Jun 26.3 18.3 10.2
Jul 30.7 22.1 13.6
Aug 30 20.7 12.3
Sep 25.8 15.8 7.4
Oct 16.2 7.6 0.5
Nov 7.2 -1 -7.8
Dec -2.6 -9.2 -15.2

 


 

Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Bismarck are November, February, and then January. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around mid November. For example, on the week of November 12th there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in early to mid June with an average of 2 days of significant precipitation the week of June 11th.

When can you find snow in Bismarck? Weather stations report very large amounts of snow likely to be deepest around January, especially close to late February and early March. The best time to ski (if at all) in Bismarck is often around around January 15th when fresh powder is deepest. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.

Chance of Precipitation

The graph below shows the % chance of rainy and snowy days in Bismarck.

Key
Days with precipitation

Snow on the Ground

The graph below shows the average snow on the ground in Bismarck (in).

Key
Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 6% 7.4 0.5
Feb 5% 7.2 0.6
Mar 9% 6.5 0.9
Apr 14% 5 1.5
May 19% 1.2 3.5
Jun 26% 0 3.9
Jul 19% 0 2.6
Aug 17% 0 2.8
Sep 11% 0 1.7
Oct 11% 2 1.6
Nov 3% 3.4 0.6
Dec 9% 4.7 0.7

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 6 18.8 1.3
Feb 5 18.3 1.5
Mar 9 16.5 2.3
Apr 14 12.7 3.8
May 19 3 8.9
Jun 26 0 9.9
Jul 19 0 6.6
Aug 17 0 7.1
Sep 11 0 4.3
Oct 11 5.1 4.1
Nov 3 8.6 1.5
Dec 9 11.9 1.8

 

Humidity and Wind

Bismarck has some slightly muggy months, with moderately humid months on the other side of the year. The least humid month is April (48.4% relative humidity), and the most humid month is December (69.7%).

Wind in Bismarck is usually moderate. The windiest month is May, followed by April and March. May’s average wind speed of around 9.3 knots (10.7 MPH or 17.2 KPH) is considered “a gentle breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in early May where average top sustained speeds reach 19.7 knots, which is considered a fresh breeze.

Relative Humidity (%)

The graph below shows the average % humidity by month in Bismarck.

Key
Avg. Relative Humidity

Wind

The graph below shows wind speed (max and average) in knots.

Key
Max Sustained Wind
Average Daily Wind

Average Wind Speeds

Show Wind Speeds

All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.

Month Avg. Wind Avg. Wind Feel Sustained High Wind High Wind Feel
Jan 8 Gentle breeze 15.9 Significant breeze
Feb 7.5 Gentle breeze 14.8 Significant breeze
Mar 8.4 Gentle breeze 16.3 Significant breeze
Apr 9.3 Gentle breeze 17.8 Strong breeze
May 9.3 Gentle breeze 18.1 Significant breeze
Jun 7.6 Gentle breeze 16.2 Significant breeze
Jul 7.1 Gentle breeze 15.6 Significant breeze
Aug 6.9 Light breeze 14.7 Significant breeze
Sep 7.4 Gentle breeze 15.3 Significant breeze
Oct 7.8 Gentle breeze 15.7 Significant breeze
Nov 7.5 Gentle breeze 14.9 Significant breeze
Dec 7.1 Gentle breeze 14 Significant breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 64.4%
Feb 64.4%
Mar 61.1%
Apr 48.4%
May 51.2%
Jun 57.9%
Jul 54.7%
Aug 55.5%
Sep 53%
Oct 56.8%
Nov 60.2%
Dec 69.7%

 

Is it Safe to Travel to Bismarck?

Our best data indicates this area is generally safe. As of Oct 07, 2019 there are no travel advisories or warnings for the United States; exercise normal security precautions. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories. This advisory was last updated on Sep 23, 2019.


 

The Busiest and Least Crowded Months

The busiest month for tourism in Bismarck, ND, US is August, followed by March and February. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit Bismarck in June. Those willing to visit at these times will likely find it the least expensive month.

Estimated Tourism by Month

 

Most Popular Months to Visit

Key
Tourists Seeking Accommodations

Tourism graph is based on Google searches for services used by tourists relative to the rest of the year. Tourism data for this area is somewhat extrapolated based on nearby areas. Displayed data is calculated relative to the peak, so a score of 55.6 in June means 55.6% of the tourists vs. August.

 

 

Overall Bismarck Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel moderately cold. Highs range from 74.6°F (23.7°C) and 27.5°F (-2.5°C) with far warmer temperatures in the later months. Rain is somewhat common with 3 to 6 days of significant precipitation per month. Spring is the busiest for tourism, which makes it a good time for those looking for things to do.

Summer (June through August)

The middle-year months have very comfortable weather with high temperatures that are quite warm. These months see the most precipitation with 5 to 8 days of precipitation per month. June – August is the second busiest season for tourism in Bismarck, so lodging and other accommodations may cost slightly more.

Fall (September through November)

Fall daily highs range from 80.6°F (27°C) and 35.8°F (2.1°C), which will feel chilly given the humidity and wind. It rains or snows a normal amount: 1 to 3 days per month. Tourism is the slowest during these months due to the weather, so hotels may be affordably priced.

Winter (December through February)

Weather is far too cold this time of year in Bismarck to be enjoyable for warm weather travelers. The average high during this season is between 31°F (-0.6°C) and 24.2°F (-4.3°C). On average, it rains or snows a smalll amount: 1 to 3 times per month. These times of year are fairly slow with tourists.

 

Best Times to Travelthe United States › Bismarck, ND, US