Climate and monthly weather forecast
Augusta, MT

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Weather in January

January, the same as December, in Augusta, Montana, is another subzero cold winter month, with temperature in the range of an average low of 18°F (-7.8°C) and an average high of 30.4°F (-0.9°C). January ushers in an average high-temperature of a still subzero cold 30.4°F (-0.9°C), aligning closely with the preceding month. Weather in January »

Weather in February

February, the last month of the winter in Augusta, is another freezing cold month, with an average temperature fluctuating between 16.3°F (-8.7°C) and 30.2°F (-1°C). February brings a marginal elevation to a still freezing cold 30.2°F (-1°C) from January's 30.4°F (-0.9°C) in Augusta's average high-temperatures. Weather in February »

Weather in March

March, the first month of the spring in Augusta, is a wintry month, with an average temperature fluctuating between 40.3°F (4.6°C) and 25.5°F (-3.6°C). With the onset of March, Augusta's average high-temperature sees a rise, moving from February's subzero cold 30.2°F (-1°C) to a cold 40.3°F (4.6°C). Weather in March »

Weather in April

April in Augusta, Montana, is a chilly spring month, with temperature in the range of an average high of 49.6°F (9.8°C) and an average low of 33.6°F (0.9°C). An upsurge in temperatures occurs as March gives way to April, with average highs shifting from a cold 40.3°F (4.6°C) to a chilly 49.6°F (9.8°C). Weather in April »

Weather in May

May, the last month of the spring in Augusta, is a mild month, with temperature in the range of an average high of 60.4°F (15.8°C) and an average low of 41.7°F (5.4°C). As Augusta transitions into May, the average high-temperature shows a change, moving from a frosty 49.6°F (9.8°C) in April to a refreshing 60.4°F (15.8°C). Weather in May »

Weather in June

The first month of the summer, June, is a pleasant month in Augusta, Montana, with temperature in the range of an average low of 48°F (8.9°C) and an average high of 69.1°F (20.6°C). Augusta perceives a slight temperature ascent during June, with average high-temperatures adjusting from a moderate 60.4°F (15.8°C) in May to an agreeable 69.1°F (20.6°C). Weather in June »

Weather in July

July in Augusta, Montana, is a warm summer month, with an average temperature fluctuating between 54.5°F (12.5°C) and 79.7°F (26.5°C). July stands out as Augusta's warmest month, with temperatures ranging between an average high of 79.7°F (26.5°C) and a low of 54.5°F (12.5°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Augusta, Montana, with an average temperature fluctuating between 79°F (26.1°C) and 55.9°F (13.3°C). As Augusta transitions into August, the average high-temperature stands at a still warm 79°F (26.1°C), offering little variation from the preceding month. Weather in August »

Weather in September

September, the first month of the autumn in Augusta, is also an agreeable month, with an average temperature fluctuating between 68.2°F (20.1°C) and 48.6°F (9.2°C). The shift from August to September involves a decrease in the average high-temperature, dropping from a warm 79°F (26.1°C) to a pleasant 68.2°F (20.1°C). Weather in September »

Weather in October

October, the same as September, is another fresh autumn month in Augusta, Montana, with an average temperature varying between 35.8°F (2.1°C) and 52.3°F (11.3°C). October's onset brings a clear reduction in the average high-temperature, falling from a pleasant 68.2°F (20.1°C) in September to a fresh 52.3°F (11.3°C). Weather in October »

Weather in November

November, the last month of the autumn in Augusta, is also an icy month, with an average temperature varying between 39.2°F (4°C) and 25.3°F (-3.7°C). The average high-temperature decreases in November, shifting from a fresh 52.3°F (11.3°C) in October to a wintry 39.2°F (4°C). Weather in November »

Weather in December

December, the first month of the winter in Augusta, is still a freezing cold month, with temperature in the range of an average high of 28.8°F (-1.8°C) and an average low of 16.2°F (-8.8°C). December tends to be the coldest month, with temperatures averaging a daily high of 28.8°F (-1.8°C) and a low of 16.2°F (-8.8°C). Weather in December »
Updated: Jul 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the most humid month?

The most humid month is January, with an average relative humidity of 76%.

How many days does it rain?

In Augusta, during the entire year, the rain falls for 73.3 days and collects up to 9.17" (233mm) of precipitation.

When does it snow?

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

How many days does it snow?

In Augusta, during the entire year, snow falls for 50.3 days and aggregates up to 21.26" (540mm) of snow.

What is the month with the lowest UV index?

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

What is the snowiest month?

February is the month with the most snowfall. Snow falls for 11.3 days and accumulates 4.17" (106mm) of snow.

When is Daylight Saving Time (DST)?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, 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 wettest month?

The month with the most rainfall is June, when the rain falls for 11.1 days and typically aggregates up to 1.93" (49mm) of precipitation.

When it does not snow?

In Augusta, snow does not fall in June through August.

When are the longest days?

With an average of 15h and 54min of daylight, June has the longest days of the year in Augusta.

What month is the hottest?

The warmest period is July, when temperatures fluctuate between an average high of 79.7°F (26.5°C) and a low of 54.5°F (12.5°C).

What month has the most sunshine?

With an average of 12.1h of sunshine, July has the most sunshine of the year.

What is the month with the highest UV index?

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

What is the least humid month?

The least humid month is August, with an average relative humidity of 42%.

What is the coldest time of year in Augusta?

With an average high-temperature of 28.8°F (-1.8°C) and an average low-temperature of 16.2°F (-8.8°C), December is the coldest month.

What is the driest month?

December is the month with the least rainfall. Rain falls for 3.5 days and accumulates 0.35" (9mm) of precipitation.

What is the month with the shortest days?

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

What is the month with the least sunshine?

The month with the least sunshine in Augusta is December, with an average of 5.8h of sunshine.

Average temperature
Augusta, MT

Average temperature - Augusta, MT

The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is December (28.8°F).

The month with the highest average low temperature is August (55.9°F).
The coldest month (with the lowest average low temperature) is December (16.2°F).

Average pressure
Augusta, MT

Average pressure - Augusta, MT

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

Average wind speed
Augusta, MT

Average wind speed - Augusta, MT

The windiest month (with the highest average wind speed) is January (11.2mph).
The calmest months (with the lowest average wind speed) are July and August (8mph).

Average humidity
Augusta, MT

Average humidity - Augusta, MT

The month with the highest relative humidity is January (76%).
The month with the lowest relative humidity is August (42%).

Average rainfall
Augusta, MT

Average rainfall - Augusta, MT

The wettest month (with the highest rainfall) is June (1.93").
The driest month (with the least rainfall) is December (0.35").

Average rainfall days
Augusta, MT

Average rainfall days - Augusta, MT

The month with the highest number of rainy days is May (11.3 days).
The month with the least rainy days is November (2.7 days).

Average snowfall
Augusta, MT

Average snowfall - Augusta, MT

The month with the highest snowfall is February (4.17").
The months with the least snowfall are June, July and August (0").

Average snowfall days
Augusta, MT

Average snowfall days - Augusta, MT

The month with the highest number of snowfall days is February (11.3 days).
The months with the least snowfall days are July and August (0 days).

Average daylight / Average sunshine
Augusta, MT

Average daylight / Average sunshine - Augusta, 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: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).

Average sunshine days
Augusta, MT

Average sunshine days - Augusta, MT

The month with the most sunshine days is October (23.2 days).
The month with the least sunshine days is February (15.8 days).

Average UV index
Augusta, MT

Average UV index - Augusta, 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).

Average visibility
Augusta, MT

Average visibility - Augusta, 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).

Augusta, Montana, USA

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