August weather forecast
Roanwood, MT

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Weather in August

The last month of the summer, August, is also a moderately hot month in Roanwood, Montana, with an average temperature fluctuating between 62.4°F (16.9°C) and 81.7°F (27.6°C).

Temperature

Roanwood observes a minor difference in average high-temperatures between July's 83.1°F (28.4°C) and August's 81.7°F (27.6°C). Roanwood's nighttime temperature during August is consistently averaged at an enjoyable 62.4°F (16.9°C).

Heat index

For most parts of August, the heat index is calculated to be 80.6°F (27°C). Continued exposure and engagement in activity might trigger tiredness and subsequently heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.

Humidity

With an average relative humidity of 42%, August is the least humid month.

Rainfall

In Roanwood, in August, during 10 rainfall days, 1.18" (30mm) of precipitation is typically accumulated. In Roanwood, during the entire year, the rain falls for 90.8 days and collects up to 11.1" (282mm) of precipitation.

Snowfall

In Roanwood, snow does not fall in June through September.

Daylight

The average length of the day in August in Roanwood is 14h and 19min.
On the first day of August, sunrise is at 5:40 am and sunset at 8:44 pm. On the last day of the month, sunrise is at 6:22 am and sunset at 7:49 pm MDT.

Sunshine

In Roanwood, the average sunshine in August is 11.6h.

UV index

The average daily maximum UV index in August is 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum daily UV index of 6 during August translates into the following directions:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
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Frequently asked questions

What are the temperatures in Roanwood in August?

An average high-temperature, in August, in Roanwood, is 81.7°F (27.6°C) and the average low-temperature is 62.4°F (16.9°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines relative humidity and air temperature, in August is calculated to be 80.6°F (27°C).

What is the least humid month in Roanwood?

With an average relative humidity of 42%, August is the least humid month.

What is the average humidity in August in Roanwood?

The average relative humidity in August is 42%.

How many days does it rain in August in Roanwood?

In Roanwood, in August, during 10 rainfall days, 1.18" (30mm) of precipitation is typically accumulated.

When it does not snow in Roanwood?

In Roanwood, snow does not fall in June through September.

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

In August, the average day length in Roanwood, Montana, is 14h and 19min.

When are sunrise and sunset in August in Roanwood?

On the first day of August in Roanwood, Montana, sunrise is at 5:40 am and sunset at 8:44 pm. On the last day of the month, sunrise is at 6:22 am and sunset at 7:49 pm MDT.

How long on average sun shines in August in Roanwood?

The average sunshine duration in August is 11.6h.

What is the UV index reading in August in Roanwood?

In Roanwood, the average daily maximum UV index in August is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health from unprotected exposure to 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
Roanwood, MT

Average temperature in August - Roanwood, MT
  • Average high temperature in August: 81.7°F

The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is February (23.7°F).

  • Average low temperature in August: 62.4°F

The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is February (10.2°F).

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Average pressure in August
Roanwood, MT

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

The month with the highest atmospheric pressure is February (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).

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Average wind speed in August
Roanwood, MT

Average wind speed in August - Roanwood, MT
  • Average wind speed in August: 9.9mph

The windiest month (with the highest average wind speed) is April (11.7mph).
The calmest month (with the lowest average wind speed) is February (8.8mph).

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Average humidity in August
Roanwood, MT

Average humidity in August - Roanwood, MT
  • Average humidity in August: 42%

The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is August (42%).

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Average rainfall in August
Roanwood, MT

Average rainfall in August - Roanwood, MT
  • Average rainfall in August: 1.18"

The wettest month (with the highest rainfall) is June (2.01").
The driest months (with the least rainfall) are January and February (0.35").

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Average rainfall days in August
Roanwood, MT

Average rainfall days in August - Roanwood, MT
  • Average rainfall days in August: 10 days

The month with the highest number of rainy days is May (13.8 days).
The month with the least rainy days is February (2.3 days).

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Average snowfall in August
Roanwood, MT

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

The month with the highest snowfall is December (2.6").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in August
Roanwood, MT

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

The month with the highest number of snowfall days is February (9.2 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
Roanwood, MT

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

The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 18min).

  • Average sunshine in August: 11h and 4min

The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

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Average sunshine days in August
Roanwood, MT

Average sunshine days in August - Roanwood, MT
  • Average sunshine days in August: 18.3 days

The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is June (13.8 days).

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Average UV index in August
Roanwood, MT

Average UV index in August - Roanwood, MT
  • Average UV index in August: 6

The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in August
Roanwood, MT

Average cloud cover in August - Roanwood, MT
  • Average cloud cover in August: 17

The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 16).

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Average visibility in August
Roanwood, MT

Average visibility in August - Roanwood, 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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Roanwood, Montana, USA

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