Monthly weather forecast and climate
Pompeys Pillar, MT

January, the same as December, in Pompeys Pillar, Montana, is a freezing cold winter month, with average temperature fluctuating between 17.8°F (-7.9°C) and 31.8°F (-0.1°C). In January, the average high-temperature is relatively the same as in December - a still freezing cold 31.8°F (-0.1°C). Weather in January »

The last month of the winter, February, is a wintry month in Pompeys Pillar, Montana, with average temperature varying between 32.5°F (0.3°C) and 18°F (-7.8°C). In Pompeys Pillar, the average high-temperature is almost the same as in January - a cold 32.5°F (0.3°C). Weather in February »

March, the first month of the spring, in Pompeys Pillar, is a chilly month, with average temperature ranging between max 46°F (7.8°C) and min 29.7°F (-1.3°C). In March, the average high-temperature increases, from a cold 32.5°F (0.3°C) in February, to a chilly 46°F (7.8°C). Weather in March »

April in Pompeys Pillar, Montana, is a cool spring month, with average temperature fluctuating between 55°F (12.8°C) and 36.9°F (2.7°C). In April, the average high-temperature increases, from a frosty 46°F (7.8°C) in March, to a cool 55°F (12.8°C). Weather in April »

The last month of the spring, May, is a comfortable month in Pompeys Pillar, Montana, with temperature in the range of an average high of 65.8°F (18.8°C) and an average low of 45.5°F (7.5°C). In Pompeys Pillar, the average high-temperature rises, from a cool 55°F (12.8°C) in April, to a comfortable 65.8°F (18.8°C). Weather in May »

The first month of the summer, June, is a moderately hot month in Pompeys Pillar, Montana, with average temperature ranging between min 54.5°F (12.5°C) and max 77.2°F (25.1°C). In Pompeys Pillar, Montana, the average high-temperature rises, from a comfortable 65.8°F (18.8°C) in May, to a moderately hot 77.2°F (25.1°C). Weather in June »

July in Pompeys Pillar, Montana, is a hot summer month, with temperature in the range of an average low of 62.8°F (17.1°C) and an average high of 87.3°F (30.7°C). With an average high-temperature of 87.3°F (30.7°C) and an average low-temperature of 62.8°F (17.1°C), July is the warmest month. The average heat index is evaluated at a hot 86.9°F (30.5°C). Weather in July »

The last month of the summer, August, is also a moderately hot month in Pompeys Pillar, Montana, with average temperature varying between 62.2°F (16.8°C) and 85.1°F (29.5°C). In Pompeys Pillar, the average high-temperature in August is essentially the same as in July - a moderately hot 85.1°F (29.5°C). Weather in August »

September, the first month of the autumn, in Pompeys Pillar, is still a warm month, with average temperature ranging between min 54.7°F (12.6°C) and max 75.2°F (24°C). In September, the average high-temperature drops, from a moderately hot 85.1°F (29.5°C) in August, to a still warm 75.2°F (24°C). Weather in September »

October, the same as September, in Pompeys Pillar, Montana, is a moderate autumn month, with average temperature ranging between max 58.1°F (14.5°C) and min 40.6°F (4.8°C). In Pompeys Pillar, the average high-temperature significantly decreases, from a moderately hot 75.2°F (24°C) in September, to a mild 58.1°F (14.5°C). Weather in October »

November, the last month of the autumn, in Pompeys Pillar, is also a frosty month, with average temperature fluctuating between 44.1°F (6.7°C) and 28.9°F (-1.7°C). In November, the average high-temperature decreases, from a moderate 58.1°F (14.5°C) in October, to a frosty 44.1°F (6.7°C). Weather in November »

December, the first month of the winter, in Pompeys Pillar, is still a freezing cold month, with average temperature ranging between min 18.1°F (-7.7°C) and max 31.3°F (-0.4°C). December is the coldest month, with an average high-temperature of 31.3°F (-0.4°C) and an average low-temperature of 18.1°F (-7.7°C). Weather in December »

What is the most humid month in Pompeys Pillar?

The most humid month is January, with an average relative humidity of 78%.

How many days does it rain in Pompeys Pillar?

Throughout the year, in Pompeys Pillar, Montana, there are 103 rainfall days, and 11.97" (304mm) of precipitation is accumulated.

When does it snow in Pompeys Pillar?

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

How many days does it snow in Pompeys Pillar?

In Pompeys Pillar, during the entire year, snow falls for 56.7 days, and aggregates up to 25.16" (639mm) of snow.

When is the lowest UV index in Pompeys Pillar?

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index.

What is the snowiest month in Pompeys Pillar?

The month with the most snowfall is February when snow falls for 12.5 days and typically aggregates up to 5.43" (138mm) of snow.

What is the month with the least sunshine in Pompeys Pillar?

The month with the least sunshine in Pompeys Pillar is February, with an average of 5.6h of sunshine.

What is the wettest month in Pompeys Pillar?

May is the month with the most rainfall in Pompeys Pillar, Montana. Rain falls for 13.6 days and accumulates 1.81" (46mm) of precipitation.

When it does not snow in Pompeys Pillar?

In Pompeys Pillar snow does not fall in June through August.

When are the longest days in Pompeys Pillar?

The month with the longest days in Pompeys Pillar, Montana, is June, with an average of 15.7h of daylight.

What is the warmest month in Pompeys Pillar?

July is the warmest month in Pompeys Pillar, Montana, with an average high-temperature of 87.3°F (30.7°C) and an average low-temperature of 62.8°F (17.1°C).

What month has the most sunshine in Pompeys Pillar?

July has the most sunshine of the year, with an average of 11.9h of sunshine.

What is the month with the highest UV index in Pompeys Pillar?

July is the month with the highest UV index, with an average maximum UV index of 7.

What is the least humid month in Pompeys Pillar?

August is the least humid month in Pompeys Pillar, Montana, with an average relative humidity of 38%.

What is the driest month in Pompeys Pillar?

August is the month with the least rainfall in Pompeys Pillar. Rain falls for 7.5 days and accumulates 0.63" (16mm) of precipitation.

What is the coldest month in Pompeys Pillar?

With an average high-temperature of 31.3°F (-0.4°C) and an average low-temperature of 18.1°F (-7.7°C), December is the coldest month.

What is the month with the shortest days in Pompeys Pillar?

The month with the shortest days in Pompeys Pillar, Montana, is December, with an average of 8.7h of daylight.
Average temperature - Pompeys Pillar, MT
Average pressure - Pompeys Pillar, MT

The month with the highest atmospheric pressure is January (30.13").
The month with the lowest atmospheric pressure is June (29.85").

Average wind speed - Pompeys Pillar, MT

The windiest month (with the highest average wind speed) is April (9.1mph).
The calmest month (with the lowest average wind speed) is July (7.3mph).

Average humidity - Pompeys Pillar, MT
Average rainfall - Pompeys Pillar, MT
Average rainfall days - Pompeys Pillar, MT
Average snowfall - Pompeys Pillar, MT
Average snowfall days - Pompeys Pillar, MT

The month with the highest number of snowfall days is February (12.5 days).
Months with the least snowfall days are June, July and August (0 days).

Average daylight / Average sunshine - Pompeys Pillar, MT

The month with the longest days is June (Average daylight: 15.7h).
The month with the shortest days is December (Average daylight: 8.7h).

The month with the most sunshine is July (Average sunshine: 11.9h).
The month with the least sunshine is February (Average sunshine: 5.6h).

Average sunshine days - Pompeys Pillar, MT

The month with the most sunshine days is September (21.5 days).
The month with the least sunshine days is February (13.3 days).

Average UV index - Pompeys Pillar, MT
Average visibility - Pompeys Pillar, MT

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