Monthly weather forecast and climate
Bismarck, ND

The historical building of the State Capitol in Bismarck, North Dakota
The historical building of the State Capitol in Bismarck, North Dakota

Weather in January

January, like December, is another subzero cold winter month in Bismarck, North Dakota, with average temperature fluctuating between 6.1°F (-14.4°C) and 20.8°F (-6.2°C). January is the coldest month, with an average high-temperature of 20.8°F (-6.2°C) and an average low-temperature of 6.1°F (-14.4°C). Weather in January »

Weather in February

February, the last month of the winter, in Bismarck, is also a subzero cold month, with temperature in the range of an average high of 22.3°F (-5.4°C) and an average low of 7.9°F (-13.4°C). In Bismarck, the average high-temperature is practically the same as in January - a still freezing cold 22.3°F (-5.4°C). Weather in February »

Weather in March

March, the first month of the spring, in Bismarck, is a wintry month, with temperature in the range of an average high of 37.9°F (3.3°C) and an average low of 23.4°F (-4.8°C). In Bismarck, the average high-temperature in March significantly increases, from a subzero cold 22.3°F (-5.4°C) in February, to a cold 37.9°F (3.3°C). Weather in March »

Weather in April

April is a fresh spring month in Bismarck, North Dakota, with temperature in the range of an average high of 51.8°F (11°C) and an average low of 34.5°F (1.4°C). In April, the average high-temperature increases, from a wintry 37.9°F (3.3°C) in March, to a cool 51.8°F (11°C). Weather in April »

Weather in May

May, the last month of the spring, in Bismarck, is an enjoyable month, with average temperature varying between 64.9°F (18.3°C) and 46.4°F (8°C). In Bismarck, the average high-temperature rises, from a fresh 51.8°F (11°C) in April, to a comfortable 64.9°F (18.3°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in Bismarck, North Dakota, with temperature in the range of an average high of 75.6°F (24.2°C) and an average low of 55.6°F (13.1°C). In June, the average high-temperature rises, from a comfortable 64.9°F (18.3°C) in May, to a warm 75.6°F (24.2°C). Weather in June »

Weather in July

July, like June, in Bismarck, North Dakota, is a moderately hot summer month, with temperature in the range of an average high of 83.7°F (28.7°C) and an average low of 61.3°F (16.3°C). July is the warmest month, with an average high-temperature of 83.7°F (28.7°C) and an average low-temperature of 61.3°F (16.3°C). In July, the average heat index is evaluated at a tropical 86.7°F (30.4°C). Weather in July »

Weather in August

August, the last month of the summer, in Bismarck, is another warm month, with average temperature varying between 82.2°F (27.9°C) and 60.3°F (15.7°C). In Bismarck, the average high-temperature in August is almost the same as in July - a still moderately hot 82.2°F (27.9°C). Weather in August »

Weather in September

The first month of the autumn, September, is also an agreeable month in Bismarck, North Dakota, with temperature in the range of an average low of 52°F (11.1°C) and an average high of 72°F (22.2°C). In September, the average high-temperature decreases, from a warm 82.2°F (27.9°C) in August, to a pleasant 72°F (22.2°C). Weather in September »

Weather in October

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). In October, the average high-temperature plummets, from a pleasant 72°F (22.2°C) in September, to a cool 54°F (12.2°C). Weather in October »

Weather in November

The last month of the autumn, November, is another cold month in Bismarck, North Dakota, with temperature in the range of an average high of 38.7°F (3.7°C) and an average low of 25.5°F (-3.6°C). In Bismarck, North Dakota, the average high-temperature significantly decreases, from a fresh 54°F (12.2°C) in October, to a wintry 38.7°F (3.7°C). Weather in November »

Weather in December

The first month of the winter, December, is also a subzero cold month in Bismarck, North Dakota, with average temperature fluctuating between 23.2°F (-4.9°C) and 11.3°F (-11.5°C). In Bismarck, the average high-temperature in December declines considerably, from a cold 38.7°F (3.7°C) in November, to a subzero cold 23.2°F (-4.9°C). Weather in December »
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FAQ

What is the coldest month in Bismarck?

January is the coldest month in Bismarck, North Dakota, with an average high-temperature of 20.8°F (-6.2°C) and an average low-temperature of 6.1°F (-14.4°C).

What is the most humid month in Bismarck?

The most humid month in Bismarck, North Dakota, is January, with an average relative humidity of 89%.

How much does it rain in Bismarck?

In Bismarck, North Dakota, during the entire year, the rain falls for 105.9 days and collects up to 15" (381mm) of precipitation.

What is the driest month in Bismarck?

January is the month with the least rainfall. Rain falls for 4 days and accumulates 0.59" (15mm) of precipitation.

When does it snow in Bismarck?

Months with snowfall in Bismarck, North Dakota, are January through May, October through December.

How much does it snow in Bismarck?

In Bismarck, North Dakota, during the entire year, snow falls for 73.7 days, and aggregates up to 23.11" (587mm) of snow.

What is the month with the least sunshine in Bismarck?

The month with the least sunshine in Bismarck, North Dakota, is January, with an average of 3.8h of sunshine.

When is 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.

When does it snow the most in Bismarck?

February is the month with the most snowfall in Bismarck. Snow falls for 15 days and accumulates 4.33" (110mm) of snow.

What is the rainiest month in Bismarck?

June is the month with the most rainfall. Rain falls for 14.8 days and accumulates 2.28" (58mm) of precipitation.

When it does not snow in Bismarck?

June through September are months without snowfall in Bismarck, North Dakota.

When are the longest days in Bismarck?

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

What is the warmest month in Bismarck?

With an average high-temperature of 83.7°F (28.7°C) and an average low-temperature of 61.3°F (16.3°C), July is the warmest month.

What month has the most sunshine in Bismarck?

July has the most sunshine of the year in Bismarck, with an average of 11.4h of sunshine.

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

The month with the highest UV index is July, with an average maximum UV index of 6.

What is the least humid month in Bismarck?

August is the least humid month, with an average relative humidity of 55%.

What is the month with the shortest days in Bismarck?

With an average of 8.6h of daylight, December has the shortest days of the year in Bismarck.

Average temperature
Bismarck, ND

Average temperature - Bismarck, ND

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).

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).

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Average pressure
Bismarck, ND

Average pressure - Bismarck, ND

The month with the highest atmospheric pressure is February (1021.7mbar).
The month with the lowest atmospheric pressure is June (1010.7mbar).

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Average wind speed
Bismarck, ND

Average wind speed - Bismarck, ND

The windiest month (with the highest average wind speed) is April (17.2km/h).
The calmest month (with the lowest average wind speed) is August (13.4km/h).

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Average rainfall
Bismarck, ND

Average rainfall - Bismarck, ND

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

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Average rainfall days
Bismarck, ND

Average rainfall days - Bismarck, ND

The month with the highest number of rainy days is May (15.5 days).
The month with the least rainy days is February (3.4 days).

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Average snowfall
Bismarck, ND

Average snowfall - Bismarck, ND

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

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Average snowfall days
Bismarck, ND

Average snowfall days - Bismarck, ND

The month with the highest number of snowfall days is December (15.7 days).
Months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
Bismarck, ND

Average daylight / Average sunshine - Bismarck, ND

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

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

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Average sunshine days
Bismarck, ND

Average sunshine days - Bismarck, ND

The month with the most sunshine days is September (19.9 days).
The month with the least sunshine days is March (12.3 days).

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Average visibility
Bismarck, ND

Average visibility - Bismarck, ND

Months with the highest visibility are May, June, July, August, September and October (10km).
Months with the lowest visibility are January, February, March and December (8km).

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