August weather forecast
Fishtail, MT

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Weather in August

August, the last month of the summer in Fishtail, is another warm month, with temperature in the range of an average low of 57.2°F (14°C) and an average high of 81.1°F (27.3°C).

Temperature

As Fishtail transitions into August, the average high-temperature stands at a still moderately hot 81.1°F (27.3°C), offering little variation from the preceding month. Fishtail reports a significant contrast between daytime and nighttime temperatures, with an average low of 57.2°F (14°C) in August.

Heat index

August's mean heat index is computed to be 80.6°F (27°C). One might feel worn out with persistent exposure and activity, resulting in heat cramps.
Observations indicate that the heat index values are for shady locations with light wind. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', takes into account both air temperature and humidity to illustrate what people actually feel. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.

Humidity

With an average relative humidity of 41%, August is the least humid month.

Rainfall

In Fishtail, during August, the rain falls for 10.8 days and regularly aggregates up to 0.75" (19mm) of precipitation. Throughout the year, in Fishtail, there are 108.1 rainfall days, and 12.83" (326mm) of precipitation is accumulated.

Snowfall

July and August are months without snowfall.

Daylight

The average length of the day in August is 14h and 3min.
On the first day of the month, sunrise is at 6:03 am and sunset at 8:45 pm. On the last day of August, sunrise is at 6:39 am and sunset at 7:56 pm MDT.

Sunshine

The average sunshine in August is 11.7h.

UV index

In August, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The UV index of 5 in August translates into these instructions:
Take precautions - Protection against sun damage is advised. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
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Frequently asked questions

What is the temperature in August in Fishtail?

In August, in Fishtail, the average high-temperature is 81.1°F (27.3°C), and the average low-temperature is 57.2°F (14°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines relative humidity and air temperature, in August is computed to be 80.6°F (27°C).

What is the least humid month in Fishtail?

The least humid month in Fishtail is August, with an average relative humidity of 41%.

What is the average humidity in August in Fishtail?

In Fishtail, Montana, the average relative humidity in August is 41%.

How many days does it rain in August in Fishtail?

In Fishtail, in August, during 10.8 rainfall days, 0.75" (19mm) of precipitation is typically accumulated.

When it does not snow in Fishtail?

July and August are months without snowfall in Fishtail.

Does it snow in Fishtail in August?

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

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

In August, the average day length in Fishtail is 14h and 3min.

When are sunrise and sunset in August in Fishtail?

In August, on the first day of the month, sunrise is at 6:03 am and sunset at 8:45 pm. On the last day of the month, in Fishtail, sunrise is at 6:39 am and sunset at 7:56 pm MDT.

How many hours of sunshine does Fishtail have in August?

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

How high is the UV index in August in Fishtail?

In Fishtail, the average daily maximum UV index in August is 5. 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
Fishtail, MT

Average temperature in August - Fishtail, MT
  • Average high temperature in August: 81.1°F

The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is December (30.7°F).

  • Average low temperature in August: 57.2°F

The months with the highest average low temperature are July and August (57.2°F).
The coldest month (with the lowest average low temperature) is February (16.7°F).

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Average pressure in August
Fishtail, MT

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

The months with the highest atmospheric pressure are January and December (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

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Average wind speed in August
Fishtail, MT

Average wind speed in August - Fishtail, MT
  • Average wind speed in August: 6mph

The windiest month (with the highest average wind speed) is January (8.7mph).
The calmest month (with the lowest average wind speed) is August (6mph).

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Average humidity in August
Fishtail, MT

Average humidity in August - Fishtail, MT
  • Average humidity in August: 41%

The month with the highest relative humidity is January (76%).
The month with the lowest relative humidity is August (41%).

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Average rainfall in August
Fishtail, MT

Average rainfall in August - Fishtail, MT
  • Average rainfall in August: 0.75"

The wettest month (with the highest rainfall) is May (2.09").
The driest month (with the least rainfall) is January (0.51").

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Average rainfall days in August
Fishtail, MT

Average rainfall days in August - Fishtail, MT
  • Average rainfall days in August: 10.8 days

The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is February (4 days).

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Average snowfall in August
Fishtail, MT

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

The month with the highest snowfall is February (6.81").
The months with the least snowfall are July and August (0").

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Average snowfall days in August
Fishtail, MT

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

The month with the highest number of snowfall days is February (10.8 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
Fishtail, MT

Average daylight in August / Average sunshine in August - Fishtail, MT
  • Average daylight in August: 14h and 0min

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).

  • 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 February (Average sunshine: 6h and 12min).

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Average sunshine days in August
Fishtail, MT

Average sunshine days in August - Fishtail, MT
  • Average sunshine days in August: 12.3 days

The month with the most sunshine days is December (19.7 days).
The month with the least sunshine days is May (10.5 days).

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Average UV index in August
Fishtail, MT

Average UV index in August - Fishtail, MT
  • Average UV index in August: 5

The month with the highest UV index is July (UV index 6).
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
Fishtail, MT

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

The month with the most cloud cover is February (Cloud cover 38).
The months with the least cloud cover are July and August (Cloud cover 15).

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Average visibility in August
Fishtail, MT

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

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