August weather forecast
Columbus, MT

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Weather in August

August's weather in Columbus, Montana, signals the end of summer, closely replicating the conditions of July. The month records a high temperature of 81.1°F (27.3°C), almost matching its predecessor. Outdoor activities continue to peak, fueled by the ongoing warm temperatures. The extended daylight durations start to decline but remain generous compared to the rest of the year. Pressure remains stable, conducting quiet weather throughout the month.

Temperature

Columbus indicates an average high-temperature of a still warm 81.1°F (27.3°C) in August, showing minor variation from July's 82.6°F (28.1°C). In Columbus, the nighttime temperature registers a significant drop from daytime peaks to an average of 57.2°F (14°C) in August.

Heat index

The heat index for August is evaluated at 80.6°F (27°C). If one continues to be active during exposure, it might cause tiredness and subsequent heat cramps.
Heat index details are generally centered around shaded locations and a mild breeze. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', combines air temperature and relative humidity to represent a human perceived temperature equivalent. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.

Humidity

August is the least humid month in Columbus, with an average relative humidity of 41%.

Rainfall

In Columbus, in August, it is raining for 10.1 days, with typically 0.71" (18mm) of accumulated precipitation. Throughout the year, in Columbus, there are 125.4 rainfall days, and 14.49" (368mm) of precipitation is accumulated.

Snowfall

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

Daylight

In August, the average length of the day is 14h and 4min.
On the first day of August, sunrise is at 6:01 am and sunset at 8:45 pm. On the last day of the month, sunrise is at 6:38 am and sunset at 7:56 pm MDT.

Sunshine

In Columbus, Montana, the average sunshine in August is 11.7h.

UV index

In Columbus, Montana, the average daily maximum UV index in August is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: In August, a regular UV index of 5 translates into these guidelines:
Ensure safety - Imperative it is to shield skin and eyes from damage. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
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Frequently asked questions

What is the usual temperature for Columbus in August?

The high-temperature in Columbus, Montana, during August is 81.1°F (27.3°C) and the low-temperature is 57.2°F (14°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in August is evaluated at 80.6°F (27°C).

What is the least humid month in Columbus?

With an average relative humidity of 41%, August is the least humid month in Columbus.

What is the average humidity in August in Columbus?

The average relative humidity in August in Columbus, Montana, is 41%.

How many days does it rain in August in Columbus?

In Columbus, during August, the rain falls for 10.1 days and regularly aggregates up to 0.71" (18mm) of precipitation.

When it does not snow in Columbus?

June through August are months without snowfall in Columbus.

Does it snow in Columbus in August?

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

How many hours of daylight does Columbus have in August?

In Columbus, the average day length in August is 14h and 4min.

When is the sunrise / sunset in August in Columbus?

In August, on the first day of the month, sunrise is at 6:01 am and sunset at 8:45 pm. On the last day of the month, in Columbus, sunrise is at 6:38 am and sunset at 7:56 pm MDT.

How many hours of sunshine does Columbus have in August?

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

What is the UV index reading in August in Columbus?

The average daily maximum UV index in August is 5. A UV Index reading of 3 to 5 represents a medium hazard to health 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
Columbus, MT

Average temperature in August - Columbus, MT
  • Average high temperature in August: 81.1°F

The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is December (30.9°F).

  • Average low temperature in August: 57.2°F

The month with the highest average low temperature is August (57.2°F).
The coldest month (with the lowest average low temperature) is February (17.4°F).

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Average pressure in August
Columbus, MT

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

The months with the highest atmospheric pressure are January and December (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

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Average wind speed in August
Columbus, MT

Average wind speed in August - Columbus, MT
  • Average wind speed in August: 6.1mph

The windiest month (with the highest average wind speed) is January (8.9mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).

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Average humidity in August
Columbus, MT

Average humidity in August - Columbus, MT
  • Average humidity in August: 41%

The month with the highest relative humidity is January (76%).
The month with the lowest relative humidity is August (41%).

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Average rainfall in August
Columbus, MT

Average rainfall in August - Columbus, MT
  • Average rainfall in August: 0.71"

The wettest month (with the highest rainfall) is May (2.6").
The driest month (with the least rainfall) is January (0.63").

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Average rainfall days in August
Columbus, MT

Average rainfall days in August - Columbus, MT
  • Average rainfall days in August: 10.1 days

The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is February (6.7 days).

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Average snowfall in August
Columbus, MT

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

The month with the highest snowfall is February (7.36").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in August
Columbus, MT

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

The month with the highest number of snowfall days is February (13.4 days).
The months with the least snowfall days are June, July and August (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).

  • Average sunshine in August: 11h and 4min

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The months with the least sunshine are February and December (Average sunshine: 6h and 12min).

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Average sunshine days in August
Columbus, MT

Average sunshine days in August - Columbus, MT
  • Average sunshine days in August: 16.5 days

The month with the most sunshine days is September (18.9 days).
The month with the least sunshine days is April (9.5 days).

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Average UV index in August
Columbus, MT

Average UV index in August - Columbus, MT
  • Average UV index in August: 5

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

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Average cloud cover in August
Columbus, MT

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

The month with the most cloud cover is February (Cloud cover 39).
The month with the least cloud cover is August (Cloud cover 14).

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Average visibility in August
Columbus, MT

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

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

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Columbus, Montana, USA

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