August weather forecast
Mill Iron, MT

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Weather in August

August, the last month of the summer in Mill Iron, is another warm month, with an average temperature ranging between max 81.9°F (27.7°C) and min 62.2°F (16.8°C).

Temperature

August's onset records a minor alteration in the average high-temperature to a still moderately hot 81.9°F (27.7°C) from July's 84°F (28.9°C). An average low-temperature of 62.2°F (16.8°C) is observed during August nights.

Heat index

The average heat index in August is calculated to be 82.4°F (28°C). If one stays active during extended exposure, it might induce fatigue and result in heat cramps.
Heat index specifics point out values are for conditions of shade and a slight breeze. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.

Humidity

The least humid month is August, with an average relative humidity of 46%.

Rainfall

In Mill Iron, Montana, in August, during 13.5 rainfall days, 1.38" (35mm) of precipitation is typically accumulated. In Mill Iron, during the entire year, the rain falls for 109 days and collects up to 15.12" (384mm) of precipitation.

Snowfall

In Mill Iron, snow does not fall in June through August.

Daylight

In Mill Iron, the average length of the day in August is 14h and 5min.
On the first day of August, sunrise is at 5:40 am and sunset at 8:25 pm. On the last day of the month, sunrise is at 6:17 am and sunset at 7:36 pm MDT.

Sunshine

The months with the most sunshine are July and August, with an average of 11.6h of sunshine.

UV index

The average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the ordinary person.
Note: The UV index of 6 in August translates into these instructions:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Updated: Jul 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are August temperatures?

Mill Iron in August has an average high-temperature of 81.9°F (27.7°C) and an average low-temperature of 62.2°F (16.8°C). In August, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines air temperature and relative humidity, is calculated to be 82.4°F (28°C).

What is the least humid month in Mill Iron?

August is the least humid month, with an average relative humidity of 46%.

What is the average humidity in August?

The average relative humidity in August is 46%.

How much does it rain in August?

In Mill Iron, in August, during 13.5 rainfall days, 1.38" (35mm) of precipitation is typically accumulated.

When it does not snow?

In Mill Iron, snow does not fall in June through August.

Does it snow in August?

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

What is the average length of the day in August?

In Mill Iron, the average day length in August is 14h and 5min.

When is the sunrise / sunset in August?

On the first day of August, sunrise is at 5:40 am and sunset at 8:25 pm. On the last day of the month, sunrise is at 6:17 am and sunset at 7:36 pm MDT.

What are the months with the most sunshine?

July and August, with an average of 11.6h of sunshine, are months with the most sunshine.

How many hours of sunshine does Mill Iron have in August?

In Mill Iron, the average sunshine duration in August is 11.6h.

What is the UV index reading in August?

The average daily maximum UV index in August in Mill Iron, Montana, is 6. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to 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
Mill Iron, MT

Average temperature in August - Mill Iron, MT
  • Average high temperature in August: 81.9°F

The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (26.1°F).

  • Average low temperature in August: 62.2°F

The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (13.3°F).

Average pressure in August
Mill Iron, MT

Average pressure in August - Mill Iron, MT
  • Average pressure in August: 29.88"Hg

The months with the highest atmospheric pressure are January and February (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

Average wind speed in August
Mill Iron, MT

Average wind speed in August - Mill Iron, MT
  • Average wind speed in August: 10.1mph

The windiest months (with the highest average wind speed) are April and October (11.9mph).
The calmest months (with the lowest average wind speed) are July and August (10.1mph).

Average humidity in August
Mill Iron, MT

Average humidity in August - Mill Iron, MT
  • Average humidity in August: 46%

The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is August (46%).

Average rainfall in August
Mill Iron, MT

Average rainfall in August - Mill Iron, MT
  • Average rainfall in August: 1.38"

The wettest month (with the highest rainfall) is May (2.6").
The driest months (with the least rainfall) are January and December (0.55").

Average rainfall days in August
Mill Iron, MT

Average rainfall days in August - Mill Iron, MT
  • Average rainfall days in August: 13.5 days

The month with the highest number of rainy days is May (15.7 days).
The month with the least rainy days is January (3.1 days).

Average snowfall in August
Mill Iron, MT

Average snowfall in August - Mill Iron, MT
  • Average snowfall in August: 0"

The month with the highest snowfall is February (3.86").
The months with the least snowfall are June, July and August (0").

Average snowfall days in August
Mill Iron, MT

Average snowfall days in August - Mill Iron, MT
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (12 days).
The months with the least snowfall days are July and August (0 days).

Average daylight in August /
Average sunshine in August
Mill Iron, MT

Average daylight in August / Average sunshine in August - Mill Iron, 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 months with the most sunshine are July and August (Average sunshine: 11h and 36min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).

Average sunshine days in August
Mill Iron, MT

Average sunshine days in August - Mill Iron, MT
  • Average sunshine days in August: 14 days

The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is June (11.9 days).

Average UV index in August
Mill Iron, MT

Average UV index in August - Mill Iron, 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 and December (UV index 1).

Average cloud cover in August
Mill Iron, MT

Average cloud cover in August - Mill Iron, MT
  • Average cloud cover in August: 18

The month with the most cloud cover is February (Cloud cover 51).
The months with the least cloud cover are July and August (Cloud cover 18).

Average visibility in August
Mill Iron, MT

Average visibility in August - Mill Iron, 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).

Mill Iron, Montana, USA

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