Climate and monthly weather forecast
Ulm, MT

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Weather in January

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

Weather in February

The last month of the winter, February, is also a subzero cold month in Ulm, Montana, with an average temperature varying between 17.6°F (-8°C) and 31.3°F (-0.4°C). The presence of February is marked by an average high temperature of a still subzero cold 31.3°F (-0.4°C), reflecting January's climate closely. Weather in February »

Weather in March

The first month of the spring, March, is an icy month in Ulm, Montana, with an average temperature fluctuating between 27°F (-2.8°C) and 42.6°F (5.9°C). The onset of March brings a rise in the average high-temperature, elevating from a subzero cold 31.3°F (-0.4°C) in February to a wintry 42.6°F (5.9°C). Weather in March »

Weather in April

April is a cool spring month in Ulm, Montana, with an average temperature fluctuating between 51.4°F (10.8°C) and 34.3°F (1.3°C). As April sets, the average high-temperature shows a slight increase, moving up from a wintry 42.6°F (5.9°C) in March to a cool 51.4°F (10.8°C). Weather in April »

Weather in May

The last month of the spring, May, is a comfortable month in Ulm, Montana, with an average temperature ranging between min 41.9°F (5.5°C) and max 62.2°F (16.8°C). May signals a shift in the average high-temperature, moving from April's fresh 51.4°F (10.8°C) to a comfortable 62.2°F (16.8°C). Weather in May »

Weather in June

The first month of the summer, June, is an agreeable month in Ulm, Montana, with temperature in the range of an average high of 71.2°F (21.8°C) and an average low of 48.7°F (9.3°C). An escalation in the average high-temperature is seen with the onset of June, moving from an enjoyable 62.2°F (16.8°C) in May to an agreeable 71.2°F (21.8°C). Weather in June »

Weather in July

July is a warm summer month in Ulm, Montana, with an average temperature fluctuating between 55.6°F (13.1°C) and 82.2°F (27.9°C). In Ulm, July records the highest average temperatures, peaking at 82.2°F (27.9°C) and reaching a low of 55.6°F (13.1°C). In July, the heat index is estimated at 82.4°F (28°C). Weather in July »

Weather in August

August, the last month of the summer in Ulm, is also a moderately hot month, with an average temperature fluctuating between 81.1°F (27.3°C) and 56.7°F (13.7°C). August's advent denotes a minor fluctuation in the average high-temperature to a still moderately hot 81.1°F (27.3°C) from July's 82.2°F (27.9°C). Weather in August »

Weather in September

September, the first month of the autumn in Ulm, is still a pleasant month, with an average temperature varying between 70.5°F (21.4°C) and 49.5°F (9.7°C). Welcoming September, Ulm observes a shift in the average high-temperature, falling from August's moderately hot 81.1°F (27.3°C) to an agreeable 70.5°F (21.4°C). Weather in September »

Weather in October

October, the same as September, is another fresh autumn month in Ulm, Montana, with an average temperature ranging between min 36.7°F (2.6°C) and max 54.5°F (12.5°C). Witnessing a clear drop in October, the average high-temperature declines from September's agreeable 70.5°F (21.4°C) to a fresh 54.5°F (12.5°C). Weather in October »

Weather in November

November, the last month of the autumn in Ulm, is another cold month, with an average temperature ranging between max 40.1°F (4.5°C) and min 26.6°F (-3°C). As Ulm welcomes November, the average high-temperature witnesses a distinct drop, moving from a fresh 54.5°F (12.5°C) in October to a wintry 40.1°F (4.5°C). Weather in November »

Weather in December

The first month of the winter, December, is still a freezing cold month in Ulm, Montana, with an average temperature varying between 17.4°F (-8.1°C) and 29.5°F (-1.4°C). December, marked by an average high-temperature of 29.5°F (-1.4°C) and a low-temperature of 17.4°F (-8.1°C), is the coldest month. Weather in December »
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Frequently asked questions

What is the most humid month in Ulm?

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

What is the driest month in Ulm?

The months with the least rainfall in Ulm are January and July Rain falls for 4.8 days and accumulates 0.63" (16mm) of rain.

How much does it rain in Ulm?

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

When does it snow in Ulm?

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

How much does it snow in Ulm?

Throughout the year, 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 in Ulm, Montana.

What are the months with the lowest UV index in Ulm?

The months with the lowest UV index in Ulm are January through March, October through December, with an average maximum UV index of 2.

What is the snowiest month in Ulm?

The month with the most snowfall in Ulm is February, when snow falls for 14.4 days and typically aggregates up to 6.34" (161mm) of snow.

When is Daylight Saving Time (DST) in Ulm?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Ulm, and the time zone changes from MST to MDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from MDT to MST.

What is the rainiest month in Ulm?

June is the month with the most rainfall in Ulm, Montana. Rain falls for 13.8 days and accumulates 2.05" (52mm) of precipitation.

When it does not snow in Ulm?

In Ulm, Montana, snow does not fall in June through August.

When are the longest days in Ulm?

June has the longest days of the year in Ulm, Montana, with an average of 15h and 54min of daylight.

What time of the year is the hottest in Ulm?

July, having an average high-temperature of 82.2°F (27.9°C) and an average low-temperature of 55.6°F (13.1°C), is the warmest month.

What month has the most sunshine in Ulm?

The month with the most sunshine in Ulm, Montana, is July, with an average of 11.9h of sunshine.

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

The month with the highest UV index in Ulm, Montana, is July, 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, Montana.

What is the coldest month in Ulm?

Ulm's December weather, marked by an average high temperature of 29.5°F (-1.4°C) and an average low temperature of 17.4°F (-8.1°C), is the coldest in the year.

What is the month with the shortest days in Ulm?

December has the shortest days of the year in Ulm, with an average of 8h and 30min of daylight.

Average temperature
Ulm, MT

Average temperature - Ulm, MT

The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is December (29.5°F).

The month with the highest average low temperature is August (56.7°F).
The coldest month (with the lowest average low temperature) is December (17.4°F).

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Average pressure
Ulm, MT

Average pressure - Ulm, MT

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

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Average wind speed
Ulm, MT

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).

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Average rainfall
Ulm, MT

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").

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Average rainfall days
Ulm, MT

Average rainfall days - Ulm, MT

The month with the highest number of rainy days is May (15.2 days).
The month with the least rainy days is January (4.8 days).

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Average snowfall
Ulm, MT

Average snowfall - Ulm, MT

The month with the highest snowfall is February (6.34").
The months with the least snowfall are June, July and August (0").

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Average snowfall days
Ulm, MT

Average snowfall days - Ulm, MT

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

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Average daylight / Average sunshine
Ulm, MT

Average daylight / Average sunshine - Ulm, MT

The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).

The month with the most sunshine is July (Average sunshine: 11h and 54min).
The months with the least sunshine are January and December (Average sunshine: 5h and 24min).

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Average sunshine days
Ulm, MT

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).

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Average UV index
Ulm, MT

Average UV index - Ulm, MT

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).

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Average visibility
Ulm, MT

Average visibility - Ulm, MT

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

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Ulm, Montana, USA

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