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

Monthly 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
January, like December, is a freezing cold winter month in Bismarck, North Dakota, with temperature in the range of an average high of 23.4°F (-4.8°C) and an average low of 2.1°F (-16.6°C). With an average high-temperature of 23.4°F (-4.8°C) and an average low-temperature of 2.1°F (-16.6°C), January is the coldest month. Weather in January »
February, the last month of the winter, in Bismarck, is another freezing cold month, with average temperature ranging between max 28.2°F (-2.1°C) and min 7.9°F (-13.4°C). In Bismarck, the average high-temperature is essentially the same as in January - a still freezing cold 28.2°F (-2.1°C). Weather in February »

The first month of the spring, March, is a wintry month in Bismarck, North Dakota, with temperature in the range of an average low of 19.4°F (-7°C) and an average high of 40.5°F (4.7°C). In March, the average high-temperature increases, from a subzero cold 28.2°F (-2.1°C) in February, to a wintry 40.5°F (4.7°C). Weather in March »

April in Bismarck, North Dakota, is a mild spring month, with average temperature fluctuating between 30.7°F (-0.7°C) and 57°F (13.9°C). In Bismarck, the average high-temperature significantly increases, from a wintry 40.5°F (4.7°C) in March, to a mild 57°F (13.9°C). Weather in April »

The last month of the spring, May, is an agreeable month in Bismarck, North Dakota, with average temperature fluctuating between 42.6°F (5.9°C) and 68.4°F (20.2°C). In May, the average high-temperature rises, from a moderate 57°F (13.9°C) in April, to a pleasant 68.4°F (20.2°C). Weather in May »

The first month of the summer, June, is a warm month in Bismarck, North Dakota, with average temperature fluctuating between 77.2°F (25.1°C) and 52°F (11.1°C). In June, the average high-temperature slightly increases, from an agreeable 68.4°F (20.2°C) in May, to a warm 77.2°F (25.1°C). Weather in June »

July, the same as June, is a moderately hot summer month in Bismarck, North Dakota, with average temperature fluctuating between 84.7°F (29.3°C) and 57.4°F (14.1°C). July is the warmest month, with an average high-temperature of 84.7°F (29.3°C) and an average low-temperature of 57.4°F (14.1°C). In July, the average heat index is calculated to a hot 89.4°F (31.9°C). Weather in July »

August, the last month of the summer, in Bismarck, is another warm month, with average temperature ranging between min 55.6°F (13.1°C) and max 83.5°F (28.6°C). In Bismarck, the average high-temperature is almost the same as in July - a still moderately hot 83.5°F (28.6°C). Weather in August »

The first month of the autumn, September, is also an agreeable month in Bismarck, North Dakota, with average temperature varying between 72.1°F (22.3°C) and 45°F (7.2°C). In September, the average high-temperature drops, from a warm 83.5°F (28.6°C) in August, to a pleasant 72.1°F (22.3°C). Weather in September »

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). 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). Weather in October »

November, the last month of the autumn, in Bismarck, is also a wintry month, with average temperature varying between 18.9°F (-7.3°C) and 39.6°F (4.2°C). In Bismarck, the average high-temperature plummets, from a moderate 57.6°F (14.2°C) in October, to a cold 39.6°F (4.2°C). Weather in November »

The first month of the winter, December, is still a freezing cold month in Bismarck, North Dakota, with average temperature fluctuating between 6.1°F (-14.4°C) and 26.2°F (-3.2°C). In December, the average high-temperature decreases, from a cold 39.6°F (4.2°C) in November, to a subzero cold 26.2°F (-3.2°C). Weather in December »

What is the coldest month in Bismarck?

With an average high-temperature of 23.4°F (-4.8°C) and an average low-temperature of 2.1°F (-16.6°C), January is the coldest month in Bismarck.

How much does it rain in Bismarck?

Throughout the year, in Bismarck, there are 97.7 rainfall days, and 17.9" (453.4mm) of precipitation is accumulated.

What is the driest month in Bismarck?

January is the month with the least rainfall. Rain falls for 7.5 days and accumulates 0.4" (10.9mm) of precipitation.

When does it snow in Bismarck?

January through May, September through December are months with snowfall in Bismarck, North Dakota.

How much does it snow in Bismarck?

In Bismarck, North Dakota, during the entire year, snow falls for 45.2 days, and aggregates up to 51.2" (1300.5mm) of snow.

What are the months with the lowest UV index in Bismarck?

January, November and December, with an average maximum UV index of 1, are months with the lowest UV index.

What is the least humid month in Bismarck?

The least humid month in Bismarck is May, with an average relative humidity of 60.1%.

What is the wettest month in Bismarck?

The month with the most rainfall in Bismarck, North Dakota, is June when the rain falls for 11.2 days and typically aggregates up to 3.2" (80.5mm) of precipitation.

When it does not snow in Bismarck?

June through August are months without snowfall.

When are the longest days in Bismarck?

June has the longest days of the year in Bismarck, North Dakota, with an average of 15.8h of daylight.

What is the month with the highest UV index in Bismarck?

June and July, with an average maximum UV index of 8, are months with the highest UV index in Bismarck.

What is the warmest month in Bismarck?

With an average high-temperature of 84.7°F (29.3°C) and an average low-temperature of 57.4°F (14.1°C), July is the warmest month in Bismarck.

What month has the most sunshine in Bismarck?

The month with the most sunshine in Bismarck is July, with an average of 11.4h of sunshine.

What is the most humid month in Bismarck?

The most humid month in Bismarck, North Dakota, is December, with an average relative humidity of 74.5%.

What is the snowiest month in Bismarck?

December is the month with the most snowfall in Bismarck, North Dakota. Snow falls for 10 days and accumulates 9.3" (236.2mm) of snow.

What is the month with the shortest days in Bismarck?

The month with the shortest days in Bismarck is December, with an average of 8.6h of daylight.

What is the month with the least sunshine in Bismarck?

December has the least sunshine of the year, with an average of 4h of sunshine.
Average temperature - Bismarck, ND
Average humidity - Bismarck, ND
Average rainfall - Bismarck, ND

The wettest month (with the highest rainfall) is June (80.5mm).
The driest month (with the lowest rainfall) is January (10.9mm).

Average rainfall days - Bismarck, ND

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 - Bismarck, ND

The month with the highest snowfall is December (236.2mm).
Months with the lowest snowfall are June, July and August (0mm).

Average snowfall days - Bismarck, ND

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 / Average sunshine - Bismarck, ND