Monthly weather forecast and climate
Saint Ignatius, MT

January, the same as December, in Saint Ignatius, Montana, is a freezing cold winter month, with average temperature ranging between max 29.8°F (-1.2°C) and min 18°F (-7.8°C). In Saint Ignatius, the average high-temperature in January is relatively the same as in December - a still subzero cold 29.8°F (-1.2°C). Weather in January »

February, the last month of the winter, in Saint Ignatius, is also a subzero cold month, with temperature in the range of an average low of 17.6°F (-8°C) and an average high of 30.4°F (-0.9°C). In Saint Ignatius, the average high-temperature is essentially the same as in January - a still subzero cold 30.4°F (-0.9°C). Weather in February »

The first month of the spring, March, is a wintry month in Saint Ignatius, Montana, with temperature in the range of an average low of 24.8°F (-4°C) and an average high of 39.2°F (4°C). In March, the average high-temperature slightly increases, from a subzero cold 30.4°F (-0.9°C) in February, to a cold 39.2°F (4°C). Weather in March »

April is a chilly spring month in Saint Ignatius, Montana, with temperature in the range of an average high of 48.7°F (9.3°C) and an average low of 29.8°F (-1.2°C). In April, the average high-temperature rises, from a cold 39.2°F (4°C) in March, to a frosty 48.7°F (9.3°C). Weather in April »

May, the last month of the spring, in Saint Ignatius, is an enjoyable month, with average temperature fluctuating between 61°F (16.1°C) and 36.7°F (2.6°C). In Saint Ignatius, Montana, the average high-temperature in May increases, from a chilly 48.7°F (9.3°C) in April, to an enjoyable 61°F (16.1°C). Weather in May »

The first month of the summer, June, is a pleasant month in Saint Ignatius, Montana, with average temperature ranging between min 43.3°F (6.3°C) and max 68.5°F (20.3°C). In Saint Ignatius, the average high-temperature in June slightly increases, from an enjoyable 61°F (16.1°C) in May, to a pleasant 68.5°F (20.3°C). Weather in June »

July is a warm summer month in Saint Ignatius, Montana, with average temperature ranging between min 49.3°F (9.6°C) and max 79.7°F (26.5°C). July is the warmest month, with an average high-temperature of 79.7°F (26.5°C) and an average low-temperature of 49.3°F (9.6°C). Weather in July »

The last month of the summer, August, is also a moderately hot month in Saint Ignatius, Montana, with average temperature varying between 49.5°F (9.7°C) and 79.3°F (26.3°C). In August, the average high-temperature is relatively the same as in July - a still warm 79.3°F (26.3°C). Weather in August »

September, the first month of the autumn, in Saint Ignatius, is still a pleasant month, with temperature in the range of an average high of 68.5°F (20.3°C) and an average low of 42.3°F (5.7°C). In September, the average high-temperature decreases, from a warm 79.3°F (26.3°C) in August, to a pleasant 68.5°F (20.3°C). Weather in September »

October, like September, in Saint Ignatius, Montana, is another fresh autumn month, with average temperature fluctuating between 51.8°F (11°C) and 32.7°F (0.4°C). In Saint Ignatius, Montana, the average high-temperature plummets, from an agreeable 68.5°F (20.3°C) in September, to a fresh 51.8°F (11°C). Weather in October »

November, the last month of the autumn, in Saint Ignatius, is also a wintry month, with average temperature varying between 24.4°F (-4.2°C) and 37.2°F (2.9°C). In November, the average high-temperature declines considerably, from a fresh 51.8°F (11°C) in October, to a wintry 37.2°F (2.9°C). Weather in November »

The first month of the winter, December, is still a freezing cold month in Saint Ignatius, Montana, with average temperature fluctuating between 28.4°F (-2°C) and 16.7°F (-8.5°C). With an average high-temperature of 28.4°F (-2°C) and an average low-temperature of 16.7°F (-8.5°C), December is the coldest month. Weather in December »

What is the most humid month in Saint Ignatius?

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

How much does it rain in Saint Ignatius?

In Saint Ignatius, Montana, during the entire year, the rain falls for 129.9 days and collects up to 13.5" (343mm) of precipitation.

When does it snow in Saint Ignatius?

Months with snowfall are January through May, September through December.

How many days does it snow in Saint Ignatius?

Throughout the year, there are 67.1 snowfall days, and 28.27" (718mm) of snow is accumulated.

What is the month with the least sunshine in Saint Ignatius?

The month with the least sunshine is January, with an average of 4.7h of sunshine.

What is the snowiest month in Saint Ignatius?

February is the month with the most snowfall in Saint Ignatius. Snow falls for 14.1 days and accumulates 6.5" (165mm) of snow.

What are the months with the lowest UV index in Saint Ignatius?

Months with the lowest UV index are February and December, with an average maximum UV index of 1.

What is the wettest month in Saint Ignatius?

The month with the most rainfall in Saint Ignatius, Montana, is June when the rain falls for 15.7 days and typically aggregates up to 2.2" (56mm) of precipitation.

When it does not snow in Saint Ignatius?

June through August are months without snowfall.

When are the longest days in Saint Ignatius?

June has the longest days of the year in Saint Ignatius, with an average of 15.9h of daylight.

What is the warmest month in Saint Ignatius?

July is the warmest month in Saint Ignatius, with an average high-temperature of 79.7°F (26.5°C) and an average low-temperature of 49.3°F (9.6°C).

What is the driest month in Saint Ignatius?

July and August are months with the least rain when the rain falls for 8 days and typically aggregates up to 0.63" (16mm) of rain.

What month has the most sunshine in Saint Ignatius?

July has the most sunshine of the year, with an average of 11.8h of sunshine.

When is the highest UV index in Saint Ignatius?

July is the month with the highest UV index in Saint Ignatius, Montana, with an average maximum UV index of 6.

What is the least humid month in Saint Ignatius?

With an average relative humidity of 49%, August is the least humid month in Saint Ignatius, Montana.

What is the coldest month in Saint Ignatius?

The coldest month in Saint Ignatius is December, with an average high-temperature of 28.4°F (-2°C) and an average low-temperature of 16.7°F (-8.5°C).

What is the month with the shortest days in Saint Ignatius?

The month with the shortest days is December, with an average of 8.5h of daylight.
Average temperature - Saint Ignatius, MT
Average pressure - Saint Ignatius, MT

The month with the highest atmospheric pressure is January (30.18").
The month with the lowest atmospheric pressure is June (29.92").

Average wind speed - Saint Ignatius, MT

The windiest month (with the highest average wind speed) is April (4.8mph).
The calmest months (with the lowest average wind speed) are January, August and December (3.9mph).

Average humidity - Saint Ignatius, MT
Average rainfall - Saint Ignatius, MT

The wettest month (with the highest rainfall) is June (2.2").
The driest months (with the least rainfall) are July and August (0.63").

Average rainfall days - Saint Ignatius, MT

The month with the highest number of rainy days is June (15.7 days).
The month with the least rainy days is August (7.4 days).

Average snowfall - Saint Ignatius, MT
Average snowfall days - Saint Ignatius, MT

The month with the highest number of snowfall days is December (14.5 days).
Months with the least snowfall days are June, July and August (0 days).

Average daylight / Average sunshine - Saint Ignatius, MT

The month with the longest days is June (Average daylight: 15.9h).
The month with the shortest days is December (Average daylight: 8.5h).

The month with the most sunshine is July (Average sunshine: 11.8h).
The month with the least sunshine is January (Average sunshine: 4.7h).

Average sunshine days - Saint Ignatius, MT
Average visibility - Saint Ignatius, MT

Months with the highest visibility are April, May, June, July, August, September and October (6mi).
Months with the lowest visibility are January, February and December (4mi).