August weather forecast
Harlem, MT

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Weather in August

The last month of the summer, August, is another warm month in Harlem, Montana, with an average temperature fluctuating between 60.3°F (15.7°C) and 81.1°F (27.3°C).

Temperature

August denotes a minimal variation in the average high-temperature to a still moderately hot 81.1°F (27.3°C) from July's 82°F (27.8°C). In August, Harlem experiences an average nighttime temperature of 60.3°F (15.7°C).

Heat index

August's mean heat index is appraised at 80.6°F (27°C). If one persists in activity during exposure, it could induce weariness and subsequently, heat cramps.
It is crucial to understand that heat index figures are for shade and gentle wind conditions. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is achieved by amalgamating air temperature with the relative humidity readings. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant 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, with an average relative humidity of 42%.

Rainfall

In Harlem, Montana, in August, it is raining for 7.4 days, with typically 0.75" (19mm) of accumulated precipitation. Throughout the year, there are 99.1 rainfall days, and 10.12" (257mm) of precipitation is accumulated.

Snowfall

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

Daylight

In Harlem, the average length of the day in August is 14h and 17min.
On the first day of the month, sunrise is at 5:50 am and sunset at 8:52 pm. On the last day of August, sunrise is at 6:32 am and sunset at 7:58 pm MDT.

Sunshine

In August, the average sunshine in Harlem is 11.6h.

UV index

The average daily maximum UV index in August in Harlem is 5. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the average person.
Note: A daily high UV index of 5 in August leads to these guidelines:
Undertake precautions - Obligation exists to protect against skin and eye damage. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
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Frequently asked questions

What are August temperatures in Harlem?

In Harlem, in August, the average high-temperature is 81.1°F (27.3°C), and the average low-temperature is 60.3°F (15.7°C). In August, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines air temperature and relative humidity, is appraised at 80.6°F (27°C).

What is the least humid month in Harlem?

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

What is the average humidity in August in Harlem?

In Harlem, Montana, the average relative humidity in August is 42%.

How many days does it rain in August in Harlem?

In Harlem, in August, during 7.4 rainfall days, 0.75" (19mm) of precipitation is typically accumulated.

When it does not snow in Harlem?

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

Does it snow in Harlem in August?

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

How many hours of daylight does Harlem have in August?

In Harlem, the average day length in August is 14h and 17min.

What time are sunrise and sunset in August in Harlem?

On the first day of August, sunrise is at 5:50 am and sunset at 8:52 pm. On the last day of the month, sunrise is at 6:32 am and sunset at 7:58 pm MDT.

How long on average sun shines in August in Harlem?

In August, the average sunshine duration is 11.6h.

What is the UV index reading in August in Harlem?

In Harlem, Montana, the average daily maximum UV index in August is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability 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
Harlem, MT

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

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is February (26.2°F).

  • Average low temperature in August: 60.3°F

The month with the highest average low temperature is August (60.3°F).
The coldest month (with the lowest average low temperature) is February (12.6°F).

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Average pressure in August
Harlem, MT

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

The month with the highest atmospheric pressure is February (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).

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Average wind speed in August
Harlem, MT

Average wind speed in August - Harlem, MT
  • Average wind speed in August: 8.7mph

The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is August (8.7mph).

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Average humidity in August
Harlem, MT

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

The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is August (42%).

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Average rainfall in August
Harlem, MT

Average rainfall in August - Harlem, MT
  • Average rainfall in August: 0.75"

The wettest month (with the highest rainfall) is June (1.85").
The driest months (with the least rainfall) are February, March and December (0.55").

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Average rainfall days in August
Harlem, MT

Average rainfall days in August - Harlem, MT
  • Average rainfall days in August: 7.4 days

The month with the highest number of rainy days is May (13.2 days).
The month with the least rainy days is February (4.6 days).

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Average snowfall in August
Harlem, MT

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

The month with the highest snowfall is January (4.02").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in August
Harlem, MT

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

The month with the highest number of snowfall days is January (12.4 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
Harlem, MT

Average daylight in August / Average sunshine in August - Harlem, MT
  • Average daylight in August: 14h and 2min

The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 24min).

  • Average sunshine in August: 11h and 4min

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is February (Average sunshine: 5h and 12min).

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Average sunshine days in August
Harlem, MT

Average sunshine days in August - Harlem, MT
  • Average sunshine days in August: 21.1 days

The month with the most sunshine days is July (21.6 days).
The month with the least sunshine days is April (12.5 days).

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Average UV index in August
Harlem, MT

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

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

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Average cloud cover in August
Harlem, MT

Average cloud cover in August - Harlem, MT
  • Average cloud cover in August: 16

The month with the most cloud cover is February (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 15).

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Average visibility in August
Harlem, MT

Average visibility in August - Harlem, 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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Harlem, Montana, USA

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