August weather forecast
Halfmoon, MT

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Weather in August

August, the last month of the summer in Halfmoon, is another warm month, with an average temperature varying between 76.8°F (24.9°C) and 45.5°F (7.5°C).

Temperature

August's advent notes a subtle adjustment in average high-temperature to a still warm 76.8°F (24.9°C) from July. Throughout August, Halfmoon braces for a considerable drop from daytime highs, with an average low-temperature of 45.5°F (7.5°C).

Humidity

August is the least humid month, with an average relative humidity of 55%.

Rainfall

The month with the least rainfall in Halfmoon, Montana, is August, when the rain falls for 6.3 days and typically collects 0.43" (11mm) of precipitation.

Snowfall

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

Daylight

The average length of the day in August in Halfmoon is 14h and 16min.
On the first day of August in Halfmoon, sunrise is at 6:13 am and sunset at 9:13 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 8:19 pm MDT.

Sunshine

The average sunshine in August in Halfmoon, Montana, is 11.7h.

UV index

The average daily maximum UV index in August is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: In August, the maximum UV index of 4 suggests these recommendations:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
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Frequently asked questions

What are the temperatures in Halfmoon in August?

The average high-temperature, in August, in Halfmoon, is 76.8°F (24.9°C), while the average low-temperature is 45.5°F (7.5°C).

What is the least humid month in Halfmoon?

August is the least humid month in Halfmoon, with an average relative humidity of 55%.

What is the average humidity in August in Halfmoon?

The average relative humidity in August is 55%.

What is the driest month in Halfmoon?

August is the month with the least rainfall in Halfmoon. Rain falls for 6.3 days and accumulates 0.43" (11mm) of precipitation.

How much does it rain in Halfmoon in August?

In Halfmoon, in August, during 6.3 rainfall days, 0.43" (11mm) of precipitation is typically accumulated.

When it does not snow in Halfmoon?

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

Does it snow in Halfmoon in August?

In Halfmoon, Montana, in August, it doesn't snow. In September, it regularly snows.

What is the average length of the day in August in Halfmoon?

The average day length in August is 14h and 16min.

When are sunrise and sunset in August in Halfmoon?

On the first day of August in Halfmoon, Montana, sunrise is at 6:13 am and sunset at 9:13 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 8:19 pm MDT.

How long on average sun shines in August in Halfmoon?

In Halfmoon, the average sunshine duration in August is 11.7h.

What is the UV index intensity in August in Halfmoon?

The average daily maximum UV index in August in Halfmoon is 4. A UV Index reading of 3 to 5 represents a medium health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Halfmoon, MT

Average temperature in August - Halfmoon, MT
  • Average high temperature in August: 76.8°F

The warmest month (with the highest average high temperature) is July (77.9°F).
The month with the lowest average high temperature is December (25.7°F).

  • Average low temperature in August: 45.5°F

The month with the highest average low temperature is August (45.5°F).
The coldest month (with the lowest average low temperature) is February (13.5°F).

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Average pressure in August
Halfmoon, MT

Average pressure in August - Halfmoon, MT
  • Average pressure in August: 29.94"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in August
Halfmoon, MT

Average wind speed in August - Halfmoon, MT
  • Average wind speed in August: 3.7mph

The windiest month (with the highest average wind speed) is April (4.6mph).
The calmest months (with the lowest average wind speed) are August and December (3.7mph).

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Average humidity in August
Halfmoon, MT

Average humidity in August - Halfmoon, MT
  • Average humidity in August: 55%

The month with the highest relative humidity is January (93%).
The month with the lowest relative humidity is August (55%).

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Average rainfall in August
Halfmoon, MT

Average rainfall in August - Halfmoon, MT
  • Average rainfall in August: 0.43"

The wettest month (with the highest rainfall) is June (1.42").
The driest month (with the least rainfall) is August (0.43").

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Average rainfall days in August
Halfmoon, MT

Average rainfall days in August - Halfmoon, MT
  • Average rainfall days in August: 6.3 days

The month with the highest number of rainy days is April (15.8 days).
The month with the least rainy days is August (6.3 days).

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Average snowfall in August
Halfmoon, MT

Average snowfall in August - Halfmoon, MT
  • Average snowfall in August: 0"

The month with the highest snowfall is January (7.72").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in August
Halfmoon, MT

Average snowfall days in August - Halfmoon, MT
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is December (19.1 days).
The months with the least snowfall days are July and August (0 days).

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Average daylight in August /
Average sunshine in August
Halfmoon, MT

Average daylight in August / Average sunshine in August - Halfmoon, MT
  • Average daylight in August: 14h and 2min

The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).

  • Average sunshine in August: 11h and 4min

The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

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Average sunshine days in August
Halfmoon, MT

Average sunshine days in August - Halfmoon, MT
  • Average sunshine days in August: 21.4 days

The month with the most sunshine days is July (21.5 days).
The month with the least sunshine days is March (7.7 days).

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Average UV index in August
Halfmoon, MT

Average UV index in August - Halfmoon, MT
  • Average UV index in August: 4

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).

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Average cloud cover in August
Halfmoon, MT

Average cloud cover in August - Halfmoon, MT
  • Average cloud cover in August: 15

The month with the most cloud cover is January (Cloud cover 65).
The months with the least cloud cover are July and August (Cloud cover 15).

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Average visibility in August
Halfmoon, MT

Average visibility in August - Halfmoon, MT
  • Average visibility in August: 6mi

The months with the highest visibility are May, June, July, August, September and October (6mi).
The month with the lowest visibility is January (3mi).

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Halfmoon, Montana, USA

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