Monthly weather forecast and climate
Ulm, MT

January, the same as December, in Ulm, Montana, is a freezing cold winter month, with average temperature fluctuating between 18.7°F (-7.4°C) and 31.3°F (-0.4°C). In Ulm, the average high-temperature is relatively the same as in December - a still freezing cold 31.3°F (-0.4°C). Weather in January »

The last month of the winter, February, is also a subzero cold month in Ulm, Montana, with average temperature ranging between max 31.3°F (-0.4°C) and min 17.6°F (-8°C). In Ulm, the average high-temperature in February remains the same as in January - a still freezing cold 31.3°F (-0.4°C). Weather in February »

The first month of the spring, March, is a wintry month in Ulm, Montana, with average temperature ranging between min 27°F (-2.8°C) and max 42.6°F (5.9°C). In Ulm, the average high-temperature rises, from a freezing cold 31.3°F (-0.4°C) in February, to a cold 42.6°F (5.9°C). Weather in March »

April in Ulm, Montana, is a fresh spring month, with average temperature varying between 51.4°F (10.8°C) and 34.3°F (1.3°C). In April, the average high-temperature slightly increases, from a cold 42.6°F (5.9°C) in March, to a cool 51.4°F (10.8°C). Weather in April »

May, the last month of the spring, in Ulm, is an enjoyable month, with average temperature ranging between min 41.9°F (5.5°C) and max 62.2°F (16.8°C). In Ulm, the average high-temperature increases, from a cool 51.4°F (10.8°C) in April, to an enjoyable 62.2°F (16.8°C). Weather in May »

June, the first month of the summer, in Ulm, is a pleasant month, with average temperature ranging between min 48.7°F (9.3°C) and max 71.2°F (21.8°C). In June, the average high-temperature increases, from a comfortable 62.2°F (16.8°C) in May, to an agreeable 71.2°F (21.8°C). Weather in June »

July in Ulm, Montana, is a moderately hot summer month, with average temperature ranging between max 82.2°F (27.9°C) and min 55.6°F (13.1°C). July is the warmest month, with an average high-temperature of 82.2°F (27.9°C) and an average low-temperature of 55.6°F (13.1°C). The average heat index is evaluated at 82.2°F (27.9°C). Weather in July »

August, the last month of the summer, in Ulm, is another warm month, with temperature in the range of an average low of 56.7°F (13.7°C) and an average high of 81.1°F (27.3°C). In Ulm, the average high-temperature is essentially the same as in July - a still moderately hot 81.1°F (27.3°C). Weather in August »

September, the first month of the autumn, in Ulm, is still a pleasant month, with average temperature varying between 49.5°F (9.7°C) and 70.5°F (21.4°C). In September, the average high-temperature drops, from a warm 81.1°F (27.3°C) in August, to a pleasant 70.5°F (21.4°C). Weather in September »

October, like September, in Ulm, Montana, is a cool autumn month, with average temperature fluctuating between 36.7°F (2.6°C) and 54.5°F (12.5°C). In October, the average high-temperature significantly decreases, from an agreeable 70.5°F (21.4°C) in September, to a fresh 54.5°F (12.5°C). Weather in October »

November, the last month of the autumn, in Ulm, is another cold month, with average temperature varying between 26.6°F (-3°C) and 40.1°F (4.5°C). In November, the average high-temperature significantly decreases, from a cool 54.5°F (12.5°C) in October, to a wintry 40.1°F (4.5°C). Weather in November »

The first month of the winter, December, is also a subzero cold month in Ulm, Montana, with average temperature ranging between min 17.4°F (-8.1°C) and max 29.5°F (-1.4°C). The coldest month is December, with an average high-temperature of 29.5°F (-1.4°C) and an average low-temperature of 17.4°F (-8.1°C). Weather in December »

What is the most humid month in Ulm?

With an average relative humidity of 78%, January is the most humid month in Ulm, Montana.

How many days does it rain in Ulm?

Throughout the year, in Ulm, there are 112.8 rainfall days, and 12.95" (329mm) of precipitation is accumulated.

What is the driest month in Ulm?

January and July are months with the least rain in Ulm, Montana, when the rain falls for 4.8 days and typically aggregates up to 0.63" (16mm) of rain.

When does it snow in Ulm?

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

How much does it snow in Ulm?

Throughout the year, in Ulm, Montana, there are 69.4 snowfall days, and 35.35" (898mm) of snow is accumulated.

What is the month with the least sunshine in Ulm?

January and December, with an average of 5.4h of sunshine, are months with the least sunshine.

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

Months with the lowest UV index are January through March, October through December, with an average maximum UV index of 2.

When does it snow the most in Ulm?

February is the month with the most snowfall in Ulm, Montana. Snow falls for 14.4 days and accumulates 6.34" (161mm) of snow.

What is the rainiest month in Ulm?

The month with the most rainfall in Ulm, Montana, is June when the rain falls for 13.8 days and typically aggregates up to 2.05" (52mm) of precipitation.

When it does not snow in Ulm?

In Ulm snow does not fall in June through August.

When are the longest days in Ulm?

The month with the longest days in Ulm is June, with an average of 15.9h of daylight.

What is the warmest month in Ulm?

The warmest month in Ulm, Montana, is July, with an average high-temperature of 82.2°F (27.9°C) and an average low-temperature of 55.6°F (13.1°C).

What month has the most sunshine in Ulm?

With an average of 11.9h of sunshine, July has the most sunshine of the year in Ulm, Montana.

When is the highest UV index in Ulm?

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

What is the least humid month in Ulm?

With an average relative humidity of 41%, August is the least humid month in Ulm.

What is the coldest month in Ulm?

With an average high-temperature of 29.5°F (-1.4°C) and an average low-temperature of 17.4°F (-8.1°C), December is the coldest month.

What is the month with the shortest days in Ulm?

December has the shortest days of the year, with an average of 8.5h of daylight.
Average temperature - Ulm, MT
Average pressure - Ulm, MT

Months with the highest atmospheric pressure are January and December (30.14").
The month with the lowest atmospheric pressure is June (29.87").

Average wind speed - Ulm, MT

The windiest months (with the highest average wind speed) are January and November (10.7mph).
The calmest month (with the lowest average wind speed) is August (7.3mph).

Average rainfall - Ulm, MT

The wettest month (with the highest rainfall) is June (2.05").
The driest months (with the least rainfall) are January and July (0.63").

Average rainfall days - Ulm, MT
Average snowfall - Ulm, MT
Average snowfall days - Ulm, MT

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

Average daylight / Average sunshine - Ulm, 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: 11.9h).
Months with the least sunshine are January and December (Average sunshine: 5.4).

Average sunshine days - Ulm, MT

The month with the most sunshine days is September (18.8 days).
The month with the least sunshine days is April (10.3 days).

Average UV index - Ulm, MT
Average visibility - Ulm, 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).