Monthly weather forecast and climate
Portal, ND

Weather in January

January, the same as December, in Portal, North Dakota, is another subzero cold winter month, with temperature in the range of an average low of 3.7°F (-15.7°C) and an average high of 17.4°F (-8.1°C). In January, the average high-temperature is essentially the same as in December - a still subzero cold 17.4°F (-8.1°C). Weather in January »

Weather in February

February, the last month of the winter, in Portal, is also a subzero cold month, with average temperature ranging between max 17.2°F (-8.2°C) and min 3.6°F (-15.8°C). The coldest month is February, with an average high-temperature of 17.2°F (-8.2°C) and an average low-temperature of 3.6°F (-15.8°C). Weather in February »

Weather in March

The first month of the spring, March, is a cold month in Portal, North Dakota, with average temperature fluctuating between 33.1°F (0.6°C) and 19.2°F (-7.1°C). In March, the average high-temperature increases considerably, from a subzero cold 17.2°F (-8.2°C) in February, to a cold 33.1°F (0.6°C). Weather in March »

Weather in April

April in Portal, North Dakota, is a chilly spring month, with average temperature ranging between min 32.9°F (0.5°C) and max 48.7°F (9.3°C). In April, the average high-temperature increases considerably, from a wintry 33.1°F (0.6°C) in March, to a frosty 48.7°F (9.3°C). Weather in April »

Weather in May

May, the last month of the spring, in Portal, is a comfortable month, with average temperature varying between 63.9°F (17.7°C) and 45.9°F (7.7°C). In May, the average high-temperature significantly increases, from a frosty 48.7°F (9.3°C) in April, to a comfortable 63.9°F (17.7°C). Weather in May »

Weather in June

June, the first month of the summer, in Portal, is an agreeable month, with average temperature varying between 72.9°F (22.7°C) and 54.1°F (12.3°C). In June, the average high-temperature increases, from a comfortable 63.9°F (17.7°C) in May, to a pleasant 72.9°F (22.7°C). Weather in June »

Weather in July

July is a warm summer month in Portal, North Dakota, with average temperature ranging between min 58.8°F (14.9°C) and max 80.1°F (26.7°C). July and August, with an average high-temperature of 80.1°F (26.7°C), are the warmest months. Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Portal, North Dakota, with average temperature fluctuating between 80.1°F (26.7°C) and 58.6°F (14.8°C). July and August, with an average high-temperature of 80.1°F (26.7°C), are the warmest months. Weather in August »

Weather in September

September, the first month of the autumn, in Portal, is also an agreeable month, with average temperature fluctuating between 50.7°F (10.4°C) and 69.3°F (20.7°C). In Portal, the average high-temperature decreases, from a moderately hot 80.1°F (26.7°C) in August, to a pleasant 69.3°F (20.7°C). Weather in September »

Weather in October

October, the same as September, is another fresh autumn month in Portal, North Dakota, with average temperature varying between 51.1°F (10.6°C) and 36.9°F (2.7°C). In October, the average high-temperature significantly decreases, from a pleasant 69.3°F (20.7°C) in September, to a fresh 51.1°F (10.6°C). Weather in October »

Weather in November

November, the last month of the autumn, in Portal, is also a wintry month, with average temperature fluctuating between 22.1°F (-5.5°C) and 34°F (1.1°C). In Portal, the average high-temperature in November plummets, from a fresh 51.1°F (10.6°C) in October, to a wintry 34°F (1.1°C). Weather in November »

Weather in December

The first month of the winter, December, is still a freezing cold month in Portal, North Dakota, with average temperature varying between 7.7°F (-13.5°C) and 18.9°F (-7.3°C). In December, the average high-temperature declines considerably, from a wintry 34°F (1.1°C) in November, to a subzero cold 18.9°F (-7.3°C). Weather in December »
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FAQ

What is the most humid month in Portal?

January is the most humid month, with an average relative humidity of 91%.

How many days does it rain in Portal?

Throughout the year, in Portal, there are 85.6 rainfall days, and 11.89" (302mm) of precipitation is accumulated.

What is the driest month in Portal?

Months with the least rainfall in Portal, North Dakota, are January and February Rain falls for 2 days and accumulates 0.39" (10mm) of rain.

When does it snow in Portal?

Months with snowfall in Portal are January through May, October through December.

How much does it snow in Portal?

Throughout the year, there are 73.2 snowfall days, and 17.83" (453mm) of snow is accumulated.

What is the month with the lowest UV index in Portal?

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

What is the coldest month in Portal?

The coldest month in Portal is February, with an average high-temperature of 17.2°F (-8.2°C) and an average low-temperature of 3.6°F (-15.8°C).

What is the rainiest month in Portal?

The month with the most rainfall in Portal is June when the rain falls for 14.1 days and typically aggregates up to 2.32" (59mm) of precipitation.

When it does not snow in Portal?

In Portal, North Dakota, snow does not fall in June through September.

When are the longest days in Portal?

With an average of 16.1h of daylight, June has the longest days of the year in Portal.

What are the warmest months in Portal?

July and August, with an average high-temperature of 80.1°F (26.7°C), are warmest months in Portal, North Dakota.

What month has the most sunshine in Portal?

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

When is the highest UV index in Portal?

With an average maximum UV index of 6, July is the month with the highest UV index in Portal, North Dakota.

What is the least humid month in Portal?

August is the least humid month in Portal, North Dakota, with an average relative humidity of 51%.

What is the snowiest month in Portal?

The month with the most snowfall is November when snow falls for 10.4 days and typically aggregates up to 3.62" (92mm) of snow.

What is the month with the shortest days in Portal?

December has the shortest days of the year in Portal, North Dakota, with an average of 8.3h of daylight.

What is the month with the least sunshine in Portal?

December has the least sunshine of the year in Portal, with an average of 3.4h of sunshine.

Average temperature
Portal, ND

Average temperature - Portal, ND

The warmest months (with the highest average high temperature) are July and August (80.1°F).
The month with the lowest average high temperature is February (17.2°F).

The month with the highest average low temperature is July (58.8°F).
The coldest month (with the lowest average low temperature) is February (3.6°F).

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Average pressure
Portal, ND

Average pressure - Portal, ND

The month with the highest atmospheric pressure is February (30.17").
The month with the lowest atmospheric pressure is June (29.84").

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Average wind speed
Portal, ND

Average wind speed - Portal, ND

The windiest month (with the highest average wind speed) is April (10.8mph).
The calmest month (with the lowest average wind speed) is August (8.8mph).

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Average rainfall
Portal, ND

Average rainfall - Portal, ND

The wettest month (with the highest rainfall) is June (2.32").
The driest months (with the least rainfall) are January and February (0.39").

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Average rainfall days
Portal, ND

Average rainfall days - Portal, ND

The month with the highest number of rainy days is June (14.1 days).
The month with the least rainy days is February (1.3 days).

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Average snowfall
Portal, ND

Average snowfall - Portal, ND

The month with the highest snowfall is November (3.62").
Months with the least snowfall are June, July, August and September (0").

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Average snowfall days
Portal, ND

Average snowfall days - Portal, ND

The month with the highest number of snowfall days is December (14.4 days).
Months with the least snowfall days are June, July and August (0 days).

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Average daylight / Average sunshine
Portal, ND

Average daylight / Average sunshine - Portal, ND

The month with the longest days is June (Average daylight: 16.1h).
The month with the shortest days is December (Average daylight: 8.3h).

The month with the most sunshine is July (Average sunshine: 11.4h).
The month with the least sunshine is December (Average sunshine: 3.4h).

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Average sunshine days
Portal, ND

Average sunshine days - Portal, ND

The month with the most sunshine days is September (19.6 days).
The month with the least sunshine days is June (14.2 days).

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Average visibility
Portal, ND

Average visibility - Portal, ND

Months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
Months with the lowest visibility are January, February, March and December (5mi).

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