August weather forecast
Miles City, MT

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Weather in August

While Miles City, Montana remains quite warm during August, the average high temperature decreases slightly from the peaks experienced in July. The decrease in daylight hours becomes more noticeable, as the month progresses towards autumn. Despite being deep in summer, August is less humid and sees a dip in rainfall compared to July. The days are still long and sunny, making it a relatively dry and hot month. The weather in August still retains the traits of summer but initiates the transition towards the mellower autumn season.

Temperature

The transition from July to August in Miles City sees average high-temperatures adjusting to a warm 84.7°F (29.3°C), from a not significantly different 86.7°F (30.4°C). Miles City's nights in August experience an average temperature drop to an enjoyable 64.8°F (18.2°C).

Humidity

The least humid month is August, with an average relative humidity of 39%.

Rainfall

In Miles City, in August, during 8.3 rainfall days, 0.63" (16mm) of precipitation is typically accumulated. In Miles City, during the entire year, the rain falls for 83.1 days and collects up to 6.81" (173mm) of precipitation.

Snowfall

In Miles City, snow does not fall in June through September.

Daylight

In Miles City, the average length of the day in August is 14h and 7min.
On the first day of the month, sunrise is at 5:45 am and sunset at 8:33 pm. On the last day of August, sunrise is at 6:23 am and sunset at 7:43 pm MDT.

Sunshine

The average sunshine in August in Miles City, Montana, is 11.7h.

UV index

In August, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: In August, the maximum UV index of 6 suggests this advice:
Resist overexposure. Safeguarding from solar damage is indispensable. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
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Frequently asked questions

Is it hot in Miles City during August?

The average high-temperature and low-temperature in Miles City during August are 84.7°F (29.3°C) and 64.8°F (18.2°C) respectively. In July, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which represents the influence of relative humidity on air temperature, is estimated at 86°F (30°C).

What is the least humid month in Miles City?

August is the least humid month, with an average relative humidity of 39%.

What is the average humidity in August in Miles City?

The average relative humidity in August in Miles City, Montana, is 39%.

How many days does it rain in August in Miles City?

In August, in Miles City, Montana, the rain falls for 8.3 days. Throughout August, 0.63" (16mm) of precipitation is accumulated.

When it does not snow in Miles City?

In Miles City, Montana, snow does not fall in June through September.

How many hours of daylight does Miles City have in August?

In August, the average day length in Miles City, Montana, is 14h and 7min.

When is the sunrise / sunset in August in Miles City?

On the first day of August in Miles City, sunrise is at 5:45 am and sunset at 8:33 pm. On the last day of the month, sunrise is at 6:23 am and sunset at 7:43 pm MDT.

How long on average sun shines in August in Miles City?

In Miles City, Montana, the average sunshine duration in August is 11.7h.

What is the UV index intensity in August in Miles City?

The average daily maximum UV index in August in Miles City, Montana, is 6. A UV Index reading of 6 to 7 represents a high 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
Miles City, MT

Average temperature in August - Miles City, MT
  • Average high temperature in August: 84.7°F

The warmest month (with the highest average high temperature) is July (86.7°F).
The month with the lowest average high temperature is January (28.8°F).

  • Average low temperature in August: 64.8°F

The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (15.1°F).

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Average pressure in August
Miles City, MT

Average pressure in August - Miles City, MT
  • Average pressure in August: 29.88"Hg

The months with the highest atmospheric pressure are January and February (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).

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Average wind speed in August
Miles City, MT

Average wind speed in August - Miles City, MT
  • Average wind speed in August: 9.3mph

The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest months (with the lowest average wind speed) are February and August (9.3mph).

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Average humidity in August
Miles City, MT

Average humidity in August - Miles City, MT
  • Average humidity in August: 39%

The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is August (39%).

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Average rainfall in August
Miles City, MT

Average rainfall in August - Miles City, MT
  • Average rainfall in August: 0.63"

The wettest month (with the highest rainfall) is May (1.1").
The driest months (with the least rainfall) are November and December (0.28").

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Average rainfall days in August
Miles City, MT

Average rainfall days in August - Miles City, MT
  • Average rainfall days in August: 8.3 days

The month with the highest number of rainy days is May (11.3 days).
The month with the least rainy days is December (2.6 days).

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Average snowfall in August
Miles City, MT

Average snowfall in August - Miles City, MT
  • Average snowfall in August: 0"

The month with the highest snowfall is February (2.2").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in August
Miles City, MT

Average snowfall days in August - Miles City, MT
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (10.1 days).
The months with the least snowfall days are June, July and August (0 days).

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Average daylight in August /
Average sunshine in August
Miles City, MT

Average daylight in August / Average sunshine in August - Miles City, MT
  • Average daylight in August: 14h and 1min

The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).

  • Average sunshine in August: 11h and 4min

The month with the most sunshine is July (Average sunshine: 11h and 48min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 6min).

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Average sunshine days in August
Miles City, MT

Average sunshine days in August - Miles City, MT
  • Average sunshine days in August: 18.5 days

The month with the most sunshine days is November (22.5 days).
The month with the least sunshine days is April (16.5 days).

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Average UV index in August
Miles City, MT

Average UV index in August - Miles City, MT
  • Average UV index in August: 6

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

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Average cloud cover in August
Miles City, MT

Average cloud cover in August - Miles City, MT
  • Average cloud cover in August: 16

The months with the most cloud cover are February and December (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 15).

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Average visibility in August
Miles City, MT

Average visibility in August - Miles City, MT
  • Average visibility in August: 6mi

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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Miles City, Montana, USA

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