August weather forecast and climate
Missoula, MT

A blurry view of the scenic area surrounding the iconic Higgins Street Bridge in Missoula, Montana, trees, high hills, sun rays, in the fall
A blurry view of the scenic area surrounding the iconic Higgins Street Bridge in Missoula, Montana, trees, high hills, sun rays, in the fall

Temperature

The average high-temperature, in Missoula, is 84.9°F (29.4°C), while the average low-temperature is 50.2°F (10.1°C).

Humidity

In Missoula, the average relative humidity is 52.5%.

Rainfall

In Missoula, during 7.5 rainfall days, 1.2" (30.2mm) of precipitation is typically accumulated. Throughout the year, there are 122.7 rainfall days, and 14.1" (359mm) of precipitation is accumulated.

Snowfall

Throughout the year, 37.9" (962.6mm) of snow is accumulated.

Daylight

The average length of the day is 14.1h.

Sunshine

The average sunshine in Missoula is 10.8h.

UV index

In Missoula, the average UV index in August is 7.

What is the temperature in August in Missoula?

In Missoula, in August, the average high-temperature is 84.9°F (29.4°C), and the average low-temperature is 50.2°F (10.1°C).

What is the average humidity in August in Missoula?

In Missoula, the average relative humidity in August is 52.5%.

How much does it rain in Missoula in August?

In Missoula, Montana, in August, during 7.5 rainfall days, 1.2" (30.2mm) of precipitation is typically accumulated.

How many hours of daylight does Missoula have in August?

In Missoula, Montana, the average length of the day in August is 14.1h.

How long on average sun shines in August in Missoula?

In Missoula, the average sunshine in August is 10.8h.

How high is the UV index in August in Missoula?

In August, the average UV index in Missoula, Montana, is 7.
Average temperature in August - Missoula, MT
  • Average high temperature in August: 84.9°F

The warmest month (with the highest average high temperature) is July (85.9°F).
The month with the lowest average high temperature is December (31°F).

  • Average low temperature in August: 50.1°F

The month with the highest average low temperature is July (51.4°F).
The coldest month (with the lowest average low temperature) is December (16.7°F).

Average humidity in August - Missoula, MT
  • Average humidity in August: 52.5%

The month with the highest relative humidity is December (83.5%).
The month with the lowest relative humidity is July (51.7%).

Average rainfall in August - Missoula, MT
  • Average rainfall in August: 1.2"

The wettest month (with the highest rainfall) is June (2.1").
The driest month (with the lowest rainfall) is February (0.7").

Average rainfall days in August - Missoula, MT
  • Average rainfall days in August: 7.5 days

Months with the highest number of rainy days are May and December (12.3 days).
The month with the lowest number of rainy days is July (7.1 days).

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

The month with the highest snowfall is December (11").
Months with the lowest snowfall are June, July, August and September (0").

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

The month with the highest number of snowfall days is December (9.8 days).
Months with the lowest number of snowfall days are July, August and September (0 days).

Average daylight in August / Average sunshine in August - Missoula, MT
  • Average daylight in August: 14.1h

The month with the longest days is June (Average daylight: 15.8h).
The month with shortest days is December (Average daylight: 8.6h).

  • Average sunshine in August: 10.8h

The month with most sunshine is July (Average sunshine: 12.6h).
The month with least sunshine is December (Average sunshine: 2.7h).

Average UV index in August - Missoula, MT
  • Average UV index in August: 7

Months with the highest UV index are June and July (UV index 8).
Months with the lowest UV index are January, November and December (UV index 1).

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