August weather forecast and climate
Otter, MT

August, the last month of the summer, in Otter, is another warm month, with average temperature fluctuating between 60.4°F (15.8°C) and 83.7°F (28.7°C).

Temperature

In August, the average high-temperature is essentially the same as in July - a still warm 83.7°F (28.7°C). In August, the average low-temperature is 60.4°F (15.8°C).

Heat index

In August, the average heat index is estimated at 82.9°F (28.3°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'feels like', 'apparent temperature', or 'felt air temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. Additional factors like metabolic differences, differences in body mass, height, and shape, clothing, and activity influence one's weather impression. Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

The least humid month in Otter is August, with an average relative humidity of 40%.

Rainfall

In August, in Otter, the rain falls for 11.6 days. Throughout August, 1.1" (28mm) of precipitation is accumulated. In Otter, during the entire year, the rain falls for 127.6 days and collects up to 14.25" (362mm) of precipitation.

Snowfall

June through August are months without snowfall in Otter.

Daylight

In Otter, the average length of the day is 14h.

Sunshine

July and August, with an average of 11.9h of sunshine, are months with the most sunshine in Otter.

UV index

In August, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health hazard from the exposure to the Sun's UV radiation for the average person.
Note: The average daily UV index of 6 in August transform into the following instructions:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

What is the temperature in August in Otter?

In August, in Otter, the average high-temperature is 83.7°F (28.7°C), and the average low-temperature is 60.4°F (15.8°C). In August, the average heat index (a.k.a. 'real feel', 'apparent temperature'), that combines both air temperature and relative humidity, is calculated to 82.9°F (28.3°C).

What is the least humid month in Otter?

With an average relative humidity of 40%, August is the least humid month in Otter, Montana.

What is the average humidity in August in Otter?

In August, the average relative humidity in Otter is 40%.

How much does it rain in Otter in August?

In Otter, in August, during 11.6 rainfall days, 1.1" (28mm) of precipitation is typically accumulated.

Does it snow in Otter in August?

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

When it does not snow in Otter?

In Otter snow does not fall in June through August.

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

The average length of the day in August is 14h.

What is the month with the most sunshine in Otter?

Months with the most sunshine are July and August, with an average of 11.9h of sunshine.

How many hours of sunshine does Otter have in August?

In August, the average sunshine in Otter is 11.9h.

How high is the UV index in August in Otter?

In August, the average daily maximum UV index in Otter, Montana, is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from the exposure to the Sun's UV radiation.
Average temperature in August - Otter, MT
  • Average high temperature in August: 28.7°C

The warmest month (with the highest average high temperature) is July (29.7°C).
The month with the lowest average high temperature is December (-0.5°C).

  • Average low temperature in August: 15.8°C

The month with the highest average low temperature is July (16.4°C).
The coldest months (with the lowest average low temperature) are January and February (-8.8°C).

Average pressure in August - Otter, MT
  • Average pressure in August: 1012.4mbar

The month with the highest atmospheric pressure is January (1020.3mbar).
The month with the lowest atmospheric pressure is June (1010.7mbar).

Average wind speed in August - Otter, MT
  • Average wind speed in August: 11.2km/h

The windiest month (with the highest average wind speed) is April (14.6km/h).
The calmest month (with the lowest average wind speed) is December (10.9km/h).

Average humidity in August - Otter, MT
  • Average humidity in August: 40%

Months with the highest relative humidity are January and February (79%).
The month with the lowest relative humidity is August (40%).

Average rainfall in August - Otter, MT
  • Average rainfall in August: 28mm

The wettest month (with the highest rainfall) is May (67mm).
The driest month (with the least rainfall) is December (17mm).

Average rainfall days in August - Otter, MT
  • Average rainfall days in August: 11.6 days

The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is January (6.3 days).

Average snowfall in August - Otter, MT
  • Average snowfall in August: 0mm

The month with the highest snowfall is February (132mm).
Months with the least snowfall are June, July and August (0mm).

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

The month with the highest number of snowfall days is February (14.3 days).
Months with the least snowfall days are June, July and August (0 days).

Average daylight in August / Average sunshine in August - Otter, MT
  • Average daylight in August: 14h

The month with the longest days is June (Average daylight: 15.6h).
The month with the shortest days is December (Average daylight: 8.8h).

  • Average sunshine in August: 11.9h

Months with the most sunshine are July and August (Average sunshine: 11.9h).
The month with the least sunshine is February (Average sunshine: 5.7h).

Average sunshine days in August - Otter, MT
  • Average sunshine days in August: 14.4 days

The month with the most sunshine days is September (18.2 days).
The month with the least sunshine days is May (9.6 days).

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

The month with the highest UV index is July (UV index 7).
Months with the lowest UV index are January, February, March, November and December (UV index 2).

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

The month with the most cloud cover is February (Cloud cover 41).
Months with the least cloud cover are July and August (Cloud cover 14).

Average visibility in August - Otter, MT
  • Average visibility in August: 10km

Months with the highest visibility are May, June, July, August, September and October (10km).
Months with the lowest visibility are January, February, March, April, November and December (9km).