August weather forecast
Colstrip, MT

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Weather in August

The month of August, in Colstrip, sees a slight decrease in the summer heat achieved in July. However, it still falls well within the summer category as the daily high temperature remains considerably above than in June. This time also records one of the lowest rainfalls of the year at 1.54" (39mm). August's balmy weather encourages outdoor events, but one should stay hydrated due to the intense presence of the sun. The extended daylight hours continue providing ample time for leisure activities.

Temperature

August brings an average high-temperature of a still warm 83.3°F (28.5°C), nearly identical to the preceding month. Colstrip notes a substantial temperature decline from the daytime peaks throughout August, with an average nighttime temperature of 61.2°F (16.2°C).

Heat index

August's mean heat index is computed to be 82.4°F (28°C). If one endures exposure and continues to be active, it might result in tiredness and heat cramps.
Understanding the heat index involves considering values for shaded locales with light wind. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is an estimation of the warmth sensation when considering humidity levels. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are extremely significant for babies and toddlers. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.

Humidity

With an average relative humidity of 42%, August is the least humid month.

Rainfall

In August, the rain falls for 12.8 days. Throughout August, 1.54" (39mm) of precipitation is accumulated. In Colstrip, during the entire year, the rain falls for 113.9 days and collects up to 14.84" (377mm) of precipitation.

Snowfall

In Colstrip, snow does not fall in July and August.

Daylight

In August, the average length of the day is 14h and 5min.
On the first day of August, sunrise is at 5:50 am and sunset at 8:35 pm. On the last day of the month, sunrise is at 6:27 am and sunset at 7:45 pm MDT.

Sunshine

The average sunshine in August is 11.7h.

UV index

The average daily maximum UV index in August is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the average person.
Note: A daily high UV index of 6 in August leads to these guidelines:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Updated: Aug 17, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in Colstrip in August?

The high-temperature, in August, in Colstrip, is 83.3°F (28.5°C), while the low-temperature averages to 61.2°F (16.2°C). In August, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is computed to be 82.4°F (28°C).

What is the least humid month?

With an average relative humidity of 42%, August is the least humid month.

What is the average humidity in August?

In August, the average relative humidity is 42%.

How much does it rain in August?

In Colstrip, during August, the rain falls for 12.8 days and regularly aggregates up to 1.54" (39mm) of precipitation.

When it does not snow?

July and August are months without snowfall.

Does it snow in Colstrip in August?

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

How many hours of daylight does Colstrip have in August?

The average day length in August is 14h and 5min.

When is the sunrise / sunset in August?

In August, on the first day of the month, sunrise is at 5:50 am and sunset at 8:35 pm. On the last day of the month, sunrise is at 6:27 am and sunset at 7:45 pm MDT.

How long on average sun shines in August?

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

What is the UV index reading in August?

In Colstrip, the average daily maximum UV index in August is 6. A UV Index estimate of 6 to 7 represents a high health threat from exposure to the Sun's 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
Colstrip, MT

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

The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is December (30.4°F).

  • Average low temperature in August: 61.2°F

The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (16°F).

Average pressure in August
Colstrip, MT

Average pressure in August - Colstrip, MT
  • Average pressure in August: 29.89"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

Average wind speed in August
Colstrip, MT

Average wind speed in August - Colstrip, MT
  • Average wind speed in August: 7.8mph

The windiest month (with the highest average wind speed) is April (10mph).
The calmest months (with the lowest average wind speed) are July and August (7.8mph).

Average humidity in August
Colstrip, MT

Average humidity in August - Colstrip, MT
  • Average humidity in August: 42%

The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is August (42%).

Average rainfall in August
Colstrip, MT

Average rainfall in August - Colstrip, MT
  • Average rainfall in August: 1.54"

The wettest month (with the highest rainfall) is May (2.56").
The driest month (with the least rainfall) is December (0.47").

Average rainfall days in August
Colstrip, MT

Average rainfall days in August - Colstrip, MT
  • Average rainfall days in August: 12.8 days

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is February (2.8 days).

Average snowfall in August
Colstrip, MT

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

The month with the highest snowfall is February (4.33").
The months with the least snowfall are July and August (0").

Average snowfall days in August
Colstrip, MT

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

The month with the highest number of snowfall days is February (10.4 days).
The months with the least snowfall days are July and August (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).

  • Average sunshine in August: 11h and 4min

The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).

Average sunshine days in August
Colstrip, MT

Average sunshine days in August - Colstrip, MT
  • Average sunshine days in August: 14.2 days

The month with the most sunshine days is December (20.5 days).
The month with the least sunshine days is May (11.3 days).

Average UV index in August
Colstrip, MT

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

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

Average cloud cover in August
Colstrip, MT

Average cloud cover in August - Colstrip, MT
  • Average cloud cover in August: 15

The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 15).

Average visibility in August
Colstrip, MT

Average visibility in August - Colstrip, 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).

Colstrip, Montana, USA

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