August weather forecast
Devils Tower, WY

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Weather in August

Despite retaining July's high temperatures, August in Devils Tower begins to hint at the approaching end of summer. A slight dip in temperature sets a gradual transition towards the cooler months of the year. Even though the county encounters a marginal decrease in rainfall, down to 1.54" (39mm), the weather stays pleasant for outdoor activities. The relative humidity levels drop slightly, yielding to cooler evenings and early mornings. As summer turns the corner towards September, expect a more noticeable drop in temperature and daylight hours.

Temperature

The introduction of August in Devils Tower notes a subtle temperature variation to a still moderately hot 81.9°F (27.7°C) from July's 83.8°F (28.8°C). A significant temperature decrease to an average a moderate 59.4°F (15.2°C) characterizes Devils Tower's nighttime temperatures during August.

Heat index

For August, the heat index is calculated to be 82.4°F (28°C). Prolonged exposure combined with continuous activity could lead to exhaustion, and possibly heat cramps.
Understanding the heat index involves considering values for shaded locales with light wind. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', integrates the air's temperature and its humidity to showcase the felt temperature by people. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.

Humidity

The months with the lowest humidity in Devils Tower, Wyoming, are August and September, with an average relative humidity of 49%.

Rainfall

In Devils Tower, during August, the rain falls for 11.8 days and regularly aggregates up to 1.54" (39mm) of precipitation. In Devils Tower, during the entire year, the rain falls for 99.6 days and collects up to 15.71" (399mm) of precipitation.

Snowfall

In Devils Tower, snow does not fall in June through August.

Daylight

In August, the average length of the day is 13h and 59min.
On the first day of the month, sunrise is at 5:46 am and sunset at 8:23 pm. On the last day of August, sunrise is at 6:21 am and sunset at 7:36 pm MDT.

Sunshine

The month with the most sunshine in Devils Tower is August, with an average of 11.7h of sunshine.

UV index

In Devils Tower, Wyoming, the average daily maximum UV index in August is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the average person.
Note: The UV index of 5 during August leads to these advisories:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
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Frequently asked questions

What is the usual temperature for Devils Tower in August?

The high-temperature, in August, in Devils Tower, is 81.9°F (27.7°C), while the low-temperature averages to 59.4°F (15.2°C). In August, the average heat index (a.k.a. 'real feel', 'feels like'), which factors the actual air temperature with the relative humidity, is calculated to be 82.4°F (28°C).

What is the least humid month in Devils Tower?

The months with the lowest humidity in Devils Tower are August and September, with an average relative humidity of 49%.

What is the average humidity in August in Devils Tower?

The average relative humidity in August in Devils Tower is 49%.

How many days does it rain in August in Devils Tower?

In Devils Tower, in August, it is raining for 11.8 days, with typically 1.54" (39mm) of accumulated precipitation.

When it does not snow in Devils Tower?

In Devils Tower, Wyoming, snow does not fall in June through August.

Does it snow in Devils Tower in August?

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

What is the average length of the day in August in Devils Tower?

In August, the average day length is 13h and 59min.

What time are sunrise and sunset in August in Devils Tower?

In August, on the first day of the month, sunrise is at 5:46 am and sunset at 8:23 pm. On the last day of the month, sunrise is at 6:21 am and sunset at 7:36 pm MDT.

What month has the most sunshine in Devils Tower?

August has the most sunshine of the year in Devils Tower, Wyoming, with an average of 11.7h of sunshine.

How long on average sun shines in August in Devils Tower?

The average sunshine duration in August in Devils Tower is 11.7h.

What is the UV index intensity in August in Devils Tower?

The average daily maximum UV index in August is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability from unsafe 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
Devils Tower, WY

Average temperature in August - Devils Tower, WY
  • Average high temperature in August: 81.9°F

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is December (30.9°F).

  • Average low temperature in August: 59.4°F

The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is February (16.2°F).

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Average pressure in August
Devils Tower, WY

Average pressure in August - Devils Tower, WY
  • Average pressure in August: 29.89"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

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Average wind speed in August
Devils Tower, WY

Average wind speed in August - Devils Tower, WY
  • Average wind speed in August: 8mph

The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is August (8mph).

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Average humidity in August
Devils Tower, WY

Average humidity in August - Devils Tower, WY
  • Average humidity in August: 49%

The month with the highest relative humidity is January (79%).
The months with the lowest relative humidity are August and September (49%).

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Average rainfall in August
Devils Tower, WY

Average rainfall in August - Devils Tower, WY
  • Average rainfall in August: 1.54"

The wettest month (with the highest rainfall) is May (2.32").
The driest month (with the least rainfall) is January (0.59").

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Average rainfall days in August
Devils Tower, WY

Average rainfall days in August - Devils Tower, WY
  • Average rainfall days in August: 11.8 days

The month with the highest number of rainy days is May (15.6 days).
The month with the least rainy days is February (2.9 days).

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Average snowfall in August
Devils Tower, WY

Average snowfall in August - Devils Tower, WY
  • Average snowfall in August: 0"

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

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Average snowfall days in August
Devils Tower, WY

Average snowfall days in August - Devils Tower, WY
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (11.2 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
Devils Tower, WY

Average daylight in August / Average sunshine in August - Devils Tower, WY
  • Average daylight in August: 14h and 0min

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in August: 11h and 4min

The month with the most sunshine is August (Average sunshine: 11h and 42min).
The months with the least sunshine are February and December (Average sunshine: 5h and 42min).

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Average sunshine days in August
Devils Tower, WY

Average sunshine days in August - Devils Tower, WY
  • Average sunshine days in August: 14.6 days

The months with the most sunshine days are September and November (20.3 days).
The month with the least sunshine days is May (12.7 days).

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Average UV index in August
Devils Tower, WY

Average UV index in August - Devils Tower, WY
  • 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, April, November and December (UV index 2).

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Average cloud cover in August
Devils Tower, WY

Average cloud cover in August - Devils Tower, WY
  • Average cloud cover in August: 16

The month with the most cloud cover is February (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 16).

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Average visibility in August
Devils Tower, WY

Average visibility in August - Devils Tower, WY
  • 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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Devils Tower, Wyoming, USA

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