Climate and monthly weather forecast
Alder, MT

Weather in January

January, the same as December, in Alder, Montana, is a freezing cold winter month, with an average temperature ranging between min 13.6°F (-10.2°C) and max 28.8°F (-1.8°C). In January, the average high-temperature is relatively the same as in December - a still subzero cold 28.8°F (-1.8°C). Weather in January »

Weather in February

February, the last month of the winter in Alder, is another freezing cold month, with an average temperature varying between 13.8°F (-10.1°C) and 29.3°F (-1.5°C). In February, the average high-temperature is relatively the same as in January - a still subzero cold 29.3°F (-1.5°C). Weather in February »

Weather in March

March, the first month of the spring in Alder, is a cold month, with temperature in the range of an average low of 21.9°F (-5.6°C) and an average high of 38.1°F (3.4°C). In March, the average high-temperature slightly increases from a freezing cold 29.3°F (-1.5°C) in February to a cold 38.1°F (3.4°C). Weather in March »

Weather in April

April is a frosty spring month in Alder, Montana, with temperature in the range of an average high of 46.4°F (8°C) and an average low of 27.7°F (-2.4°C). In Alder, the average high-temperature in April marginally rises from a wintry 38.1°F (3.4°C) in March to a chilly 46.4°F (8°C). Weather in April »

Weather in May

The last month of the spring, May, is a mild month in Alder, Montana, with an average temperature varying between 58.1°F (14.5°C) and 35.2°F (1.8°C). In May, the average high-temperature increases from a frosty 46.4°F (8°C) in April to a moderate 58.1°F (14.5°C). Weather in May »

Weather in June

The first month of the summer, June, is an agreeable month in Alder, Montana, with an average temperature fluctuating between 68.5°F (20.3°C) and 41.9°F (5.5°C). In Alder, the average high-temperature in June increases from a mild 58.1°F (14.5°C) in May to a pleasant 68.5°F (20.3°C). Weather in June »

Weather in July

July in Alder, Montana, is a warm summer month, with temperature in the range of an average low of 47.7°F (8.7°C) and an average high of 79.5°F (26.4°C). July is the warmest month, with an average high-temperature of 79.5°F (26.4°C) and an average low-temperature of 47.7°F (8.7°C). Weather in July »

Weather in August

August, the last month of the summer in Alder, is another warm month, with an average temperature fluctuating between 78.3°F (25.7°C) and 47.1°F (8.4°C). In August, the average high-temperature is almost the same as in July - a still moderately hot 78.3°F (25.7°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a comfortable month in Alder, Montana, with an average temperature fluctuating between 67.6°F (19.8°C) and 41.2°F (5.1°C). In Alder, the average high-temperature in September decreases from a warm 78.3°F (25.7°C) in August to a comfortable 67.6°F (19.8°C). Weather in September »

Weather in October

October, like September, in Alder, Montana, is a cool autumn month, with an average temperature ranging between min 30.9°F (-0.6°C) and max 50.7°F (10.4°C). In October, the average high-temperature significantly decreases from an enjoyable 67.6°F (19.8°C) in September to a cool 50.7°F (10.4°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a wintry month in Alder, Montana, with temperature in the range of an average low of 20.3°F (-6.5°C) and an average high of 36.5°F (2.5°C). In November, the average high-temperature drops from a cool 50.7°F (10.4°C) in October to a cold 36.5°F (2.5°C). Weather in November »

Weather in December

December, the first month of the winter in Alder, is also a subzero cold month, with an average temperature varying between 26.4°F (-3.1°C) and 11.3°F (-11.5°C). With an average high-temperature of 26.4°F (-3.1°C) and an average low-temperature of 11.3°F (-11.5°C), December is the coldest month. Weather in December »
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FAQ

What is the most humid month in Alder?

The most humid month in Alder is January, with an average relative humidity of 85%.

What is the driest month in Alder?

January is the month with the least rainfall in Alder, Montana. Rain falls for 11.7 days and accumulates 0.59" (15mm) of precipitation.

How many days does it rain in Alder?

Throughout the year, there are 158 rainfall days, and 12.2" (310mm) of precipitation is accumulated.

When does it snow in Alder?

Months with snowfall in Alder are January through April, October through December.

How much does it snow in Alder?

Throughout the year, there are 20.8 snowfall days, and 5.12" (130mm) of snow is accumulated.

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

January through April, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Alder, Montana.

When does it snow the most in Alder?

The month with the most snowfall in Alder, Montana, is February, when snow falls for 6.2 days and typically aggregates up to 1.81" (46mm) of snow.

When is Daylight Saving Time (DST) in Alder?

On Sunday, March 12. 2023, at 2:00 am, Daylight Saving Time starts, and the time zone changes from MST to MDT. Daylight Saving Time ends Sunday, November 5. 2023, at 2:00 am, and the time zone reverts from MDT to MST.

What is the wettest month in Alder?

May is the month with the most rainfall. Rain falls for 18.4 days and accumulates 1.85" (47mm) of precipitation.

When it does not snow in Alder?

May through September are months without snowfall in Alder.

When are the longest days in Alder?

The month with the longest days in Alder, Montana, is June, with an average of 15h and 36min of daylight.

What is the warmest month in Alder?

With an average high-temperature of 79.5°F (26.4°C) and an average low-temperature of 47.7°F (8.7°C), July is the warmest month.

What are the least humid months in Alder?

July and August, with an average relative humidity of 46%, are the least humid months in Alder.

What month has the most sunshine in Alder?

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

When is the highest UV index in Alder?

The month with the highest UV index is July, with an average maximum UV index of 5.

What is the coldest month in Alder?

With an average high-temperature of 26.4°F (-3.1°C) and an average low-temperature of 11.3°F (-11.5°C), December is the coldest month in Alder, Montana.

What is the month with the shortest days in Alder?

December has the shortest days of the year, with an average of 8h and 48min of daylight.

What is the month with the least sunshine in Alder?

December has the least sunshine of the year, with an average of 6h of sunshine.

Average temperature
Alder, MT

Average temperature - Alder, MT

The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is December (26.4°F).

The month with the highest average low temperature is July (47.7°F).
The coldest month (with the lowest average low temperature) is December (11.3°F).

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Average pressure
Alder, MT

Average pressure - Alder, MT

The month with the highest atmospheric pressure is January (30.23"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed
Alder, MT

Average wind speed - Alder, MT

The windiest month (with the highest average wind speed) is November (6.3mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).

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Average humidity
Alder, MT

Average humidity - Alder, MT

The month with the highest relative humidity is January (85%).
The months with the lowest relative humidity are July and August (46%).

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Average rainfall
Alder, MT

Average rainfall - Alder, MT

The wettest month (with the highest rainfall) is May (1.85").
The driest month (with the least rainfall) is January (0.59").

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Average rainfall days
Alder, MT

Average rainfall days - Alder, MT

The month with the highest number of rainy days is April (18.6 days).
The month with the least rainy days is August (8.6 days).

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Average snowfall
Alder, MT

Average snowfall - Alder, MT

The month with the highest snowfall is February (1.81").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days
Alder, MT

Average snowfall days - Alder, MT

The month with the highest number of snowfall days is February (6.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight / Average sunshine
Alder, MT

Average daylight / Average sunshine - Alder, MT

The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).

The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).

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Average sunshine days
Alder, MT

Average sunshine days - Alder, MT

The month with the most sunshine days is July (17.8 days).
The month with the least sunshine days is April (7.8 days).

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Average UV index
Alder, MT

Average UV index - Alder, MT

The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).

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Average visibility
Alder, MT

Average visibility - Alder, MT

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

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