August weather forecast
Fortine, MT

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Weather in August

The last month of the summer, August, is also a moderately hot month in Fortine, Montana, with temperature in the range of an average high of 77.2°F (25.1°C) and an average low of 45.1°F (7.3°C).

Temperature

The onset of August brings an average high-temperature of a still moderately hot 77.2°F (25.1°C), nearly matching the July temperature. Fortine's average low-temperature of 45.1°F (7.3°C) in August reflects a significant disparity from the daytime highs.

Humidity

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

Rainfall

The month with the least rainfall is August, when the rain falls for 6.1 days and typically collects 0.39" (10mm) of precipitation.

Snowfall

June through August are months without snowfall.

Daylight

In August, the average length of the day is 14h and 18min.
On the first day of August, sunrise is at 6:14 am and sunset at 9:17 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 8:22 pm MDT.

Sunshine

With an average of 11.7h of sunshine, August has the most sunshine of the year.

UV index

In August, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: An average maximum UV index of 4 in August leads to these recommendations:
Take necessary precautions - Defending against sun damage is advocated. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Updated: Jul 18, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Fortine in August?

In Fortine, in August, the average high-temperature is 77.2°F (25.1°C), and the average low-temperature is 45.1°F (7.3°C).

What is the least humid month?

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

What is the average humidity in August?

In August, the average relative humidity is 55%.

What is the driest month?

August is the month with the least rainfall. Rain falls for 6.1 days and accumulates 0.39" (10mm) of precipitation.

How many days does it rain in August?

In Fortine, in August, it is raining for 6.1 days, with typically 0.39" (10mm) of accumulated precipitation.

When it does not snow?

June through August are months without snowfall.

Does it snow in August?

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

How many hours of daylight does Fortine have in August?

In August, the average day length is 14h and 18min.

When are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 6:14 am and sunset at 9:17 pm. On the last day of the month, in Fortine, sunrise is at 6:56 am and sunset at 8:22 pm MDT.

What month has the most sunshine?

August has the most sunshine of the year, with an average of 11.7h of sunshine.

How many hours of sunshine does Fortine have in August?

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

What is the UV index reading in August in Fortine?

In Fortine, the average daily maximum UV index in August is 4. A UV Index reading of 3 to 5 represents a moderate vulnerability from exposure to Sun's UV rays.
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
Fortine, MT

Average temperature in August - Fortine, MT
  • Average high temperature in August: 77.2°F

The warmest month (with the highest average high temperature) is July (77.4°F).
The month with the lowest average high temperature is December (25.5°F).

  • Average low temperature in August: 45.1°F

The month with the highest average low temperature is August (45.1°F).
The coldest month (with the lowest average low temperature) is December (13.1°F).

Average pressure in August
Fortine, MT

Average pressure in August - Fortine, MT
  • Average pressure in August: 29.93"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in August
Fortine, MT

Average wind speed in August - Fortine, MT
  • Average wind speed in August: 3.9mph

The windiest month (with the highest average wind speed) is June (4.4mph).
The calmest month (with the lowest average wind speed) is December (3.4mph).

Average humidity in August
Fortine, MT

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

The month with the highest relative humidity is January (95%).
The month with the lowest relative humidity is August (55%).

Average rainfall in August
Fortine, MT

Average rainfall in August - Fortine, MT
  • Average rainfall in August: 0.39"

The wettest month (with the highest rainfall) is March (1.85").
The driest month (with the least rainfall) is August (0.39").

Average rainfall days in August
Fortine, MT

Average rainfall days in August - Fortine, MT
  • Average rainfall days in August: 6.1 days

The month with the highest number of rainy days is April (17 days).
The month with the least rainy days is August (6.1 days).

Average snowfall in August
Fortine, MT

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

The month with the highest snowfall is February (10").
The months with the least snowfall are June, July and August (0").

Average snowfall days in August
Fortine, MT

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

The month with the highest number of snowfall days is December (22.1 days).
The months with the least snowfall days are June, July and August (0 days).

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

Average daylight in August / Average sunshine in August - Fortine, 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 August (Average sunshine: 11h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).

Average sunshine days in August
Fortine, MT

Average sunshine days in August - Fortine, MT
  • Average sunshine days in August: 21.6 days

The month with the most sunshine days is August (21.6 days).
The month with the least sunshine days is March (6.3 days).

Average UV index in August
Fortine, MT

Average UV index in August - Fortine, 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).

Average cloud cover in August
Fortine, MT

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

The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 15).

Average visibility in August
Fortine, MT

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

The months with the highest visibility are May, June, July, August and September (6mi).
The month with the lowest visibility is January (2mi).

Fortine, Montana, USA

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