August weather forecast and climate
Terry, MT

Weather in August

The last month of the summer, August, is another warm month in Terry, Montana, with average temperature fluctuating between 83.3°F (28.5°C) and 63.1°F (17.3°C).

Temperature

In August, the average high-temperature is relatively the same as in July - a still warm 83.3°F (28.5°C). In August, the average low-temperature is 63.1°F (17.3°C).

Heat index

In August, the average heat index is evaluated at 83.1°F (28.4°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. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'real feel', 'felt air temperature', or 'apparent temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (differences in body mass, height, and shape, clothing, wind). Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. 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

August is the least humid month in Terry, with an average relative humidity of 43%.

Rainfall

In Terry, it is raining for 10.6 days, with typically 1.22" (31mm) of accumulated precipitation. In Terry, during the entire year, the rain falls for 102.6 days and collects up to 13.35" (339mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

In Terry, the average length of the day is 14.1h.

Sunshine

The average sunshine in August is 11.6h.

UV index

In August, the average daily maximum UV index in Terry is 6. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to the UV radiation for the average person.
Note: In August, the average maximum UV index of 6 translate into the following recommendations:
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.
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FAQ

What is the temperature in August in Terry?

The average high-temperature, in August, is 83.3°F (28.5°C), while the average low-temperature is 63.1°F (17.3°C). In August, the average heat index (a.k.a. 'feels like', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is evaluated at 83.1°F (28.4°C).

What is the least humid month in Terry?

The least humid month in Terry is August, with an average relative humidity of 43%.

What is the average humidity in August in Terry?

In Terry, Montana, the average relative humidity in August is 43%.

How many days does it rain in August in Terry?

In Terry, Montana, during August, the rain falls for 10.6 days and regularly aggregates up to 1.22" (31mm) of precipitation.

When it does not snow in Terry?

June through September are months without snowfall.

How many hours of daylight does Terry have in August?

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

How many hours of sunshine does Terry have in August?

In August, the average sunshine is 11.6h.

How high is the UV index in August in Terry?

The average daily maximum UV index in August 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
Terry, MT

Average temperature in August - Terry, MT
  • Average high temperature in August: 83.3°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (25.5°F).

  • Average low temperature in August: 63.1°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (12.6°F).

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Average pressure in August
Terry, MT

Average pressure in August - Terry, MT
  • Average pressure in August: 29.88"

The month with the highest atmospheric pressure is February (30.16").
The month with the lowest atmospheric pressure is June (29.83").

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Average wind speed in August
Terry, MT

Average wind speed in August - Terry, MT
  • Average wind speed in August: 9.3mph

The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is August (9.3mph).

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Average humidity in August
Terry, MT

Average humidity in August - Terry, MT
  • Average humidity in August: 43%

The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is August (43%).

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Average rainfall in August
Terry, MT

Average rainfall in August - Terry, MT
  • Average rainfall in August: 1.22"

The wettest month (with the highest rainfall) is May (2.2").
The driest month (with the least rainfall) is January (0.51").

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Average rainfall days in August
Terry, MT

Average rainfall days in August - Terry, MT
  • Average rainfall days in August: 10.6 days

The month with the highest number of rainy days is May (13.7 days).
The month with the least rainy days is February (4 days).

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Average snowfall in August
Terry, MT

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

The month with the highest snowfall is February (3.62").
Months with the least snowfall are June, July, August and September (0").

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Average snowfall days in August
Terry, MT

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

The month with the highest number of snowfall days is January (12.9 days).
Months with the least snowfall days are July, August and September (0 days).

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

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

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

  • Average sunshine in August: 11.6h

The month with the most sunshine is July (Average sunshine: 11.7h).
Months with the least sunshine are February and December (Average sunshine: 4.9).

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Average sunshine days in August
Terry, MT

Average sunshine days in August - Terry, MT
  • Average sunshine days in August: 17.6 days

The month with the most sunshine days is September (19.8 days).
The month with the least sunshine days is June (13.1 days).

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Average UV index in August
Terry, MT

Average UV index in August - Terry, 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 November and December (UV index 1).

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Average cloud cover in August
Terry, MT

Average cloud cover in August - Terry, MT
  • Average cloud cover in August: 17

The month with the most cloud cover is February (Cloud cover 49).
Months with the least cloud cover are July and August (Cloud cover 17).

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Average visibility in August
Terry, MT

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

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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