August weather forecast
Polson, MT

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Weather in August

In August, the weather in Polson, Montana, undergoes a slight temperature shift. From the soaring temperatures of July, the heat begins to mellow down. Notably, August records high temperatures similar to July, as the mercury reaches 78.6°F (25.9°C). Despite the reduction in warmth, the summer vibes remain, with low rainfall and abundant sunlight characterizing the month. As the end of summer approaches, August stands out as an amalgamation of warm days and cool nights, signaling an imminent change.

Temperature

August's advent notes a subtle adjustment in average high-temperature to a still warm 78.6°F (25.9°C) from July. Throughout August nights, Polson reports a steady thermal contrast from the day, with an average low-temperature of 48.9°F (9.4°C).

Humidity

With an average relative humidity of 51%, August is the least humid month in Polson.

Rainfall

July and August are months with the least rain when the rain falls for 7 days and typically aggregates up to 0.55" (14mm) of rain.

Snowfall

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

Daylight

In Polson, the average length of the day in August is 14h and 13min.
On the first day of the month, sunrise is at 6:15 am and sunset at 9:10 pm. On the last day of August, in Polson, sunrise is at 6:54 am and sunset at 8:18 pm MDT.

Sunshine

In August, the average sunshine in Polson is 11.7h.

UV index

In Polson, Montana, the average daily maximum UV index in August is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: In August, the maximum UV index of 4 suggests this advice:
Ensure safety - Recommendations to avert sunburn are presented. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Polson in August?

The average high-temperature and low-temperature during August are 78.6°F (25.9°C) and 48.9°F (9.4°C) respectively.

What is the least humid month in Polson?

With an average relative humidity of 51%, August is the least humid month.

What is the average humidity in August in Polson?

In Polson, the average relative humidity in August is 51%.

What is the driest month in Polson?

The months with the least rainfall in Polson are July and August Rain falls for 7 days and accumulates 0.55" (14mm) of rain.

How many days does it rain in August in Polson?

In Polson, Montana, in August, it is raining for 7 days, with typically 0.55" (14mm) of accumulated precipitation.

When it does not snow in Polson?

June through August are months without snowfall.

Does it snow in Polson in August?

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

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

The average day length in August in Polson is 14h and 13min.

When are sunrise and sunset in August in Polson?

On the first day of August in Polson, sunrise is at 6:15 am and sunset at 9:10 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 8:18 pm MDT.

How long on average sun shines in August in Polson?

In August, the average sunshine duration is 11.7h.

How high is the UV index in August in Polson?

In August, the average daily maximum UV index in Polson, Montana, is 4. A UV Index value of 3 to 5 symbolizes a medium 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
Polson, MT

Average temperature in August - Polson, MT
  • Average high temperature in August: 78.6°F

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is December (27.9°F).

  • Average low temperature in August: 48.9°F

The months with the highest average low temperature are July and August (48.9°F).
The coldest month (with the lowest average low temperature) is December (16.7°F).

Average pressure in August
Polson, MT

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

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in August
Polson, MT

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

The windiest month (with the highest average wind speed) is April (4.8mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).

Average humidity in August
Polson, MT

Average humidity in August - Polson, MT
  • Average humidity in August: 51%

The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is August (51%).

Average rainfall in August
Polson, MT

Average rainfall in August - Polson, MT
  • Average rainfall in August: 0.55"

The wettest month (with the highest rainfall) is June (2.2").
The driest months (with the least rainfall) are July and August (0.55").

Average rainfall days in August
Polson, MT

Average rainfall days in August - Polson, MT
  • Average rainfall days in August: 7 days

The months with the highest number of rainy days are March and April (18.8 days).
The month with the least rainy days is August (7 days).

Average snowfall in August
Polson, MT

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

The month with the highest snowfall is February (10.28").
The months with the least snowfall are June, July and August (0").

Average snowfall days in August
Polson, MT

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

The month with the highest number of snowfall days is December (19.8 days).
The months with the least snowfall days are June, July and August (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).

  • 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: 4h and 30min).

Average sunshine days in August
Polson, MT

Average sunshine days in August - Polson, MT
  • Average sunshine days in August: 19.9 days

The month with the most sunshine days is July (21.3 days).
The month with the least sunshine days is March (6.4 days).

Average UV index in August
Polson, MT

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

The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).

Average cloud cover in August
Polson, MT

Average cloud cover in August - Polson, MT
  • Average cloud cover in August: 14

The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are July and August (Cloud cover 14).

Average visibility in August
Polson, MT

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

The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February and December (4mi).

Polson, Montana, USA

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