August weather forecast
Opal, WY

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Weather in August

The last month of the summer, August, is also a moderately hot month in Opal, Wyoming, with temperature in the range of an average high of 77.9°F (25.5°C) and an average low of 54.1°F (12.3°C).

Temperature

The transition into August shows a subtle variation to a still moderately hot 77.9°F (25.5°C) from July's 79.3°F (26.3°C) in the average high-temperature. In August, Opal endures a notable temperature shift from day to night, with lows averaging at a fresh 54.1°F (12.3°C).

Humidity

The least humid month in Opal is August, with an average relative humidity of 35%.

Rainfall

The month with the least rainfall is August, when the rain falls for 8.1 days and typically collects 0.59" (15mm) of precipitation.

Snowfall

July and August are months without snowfall.

Daylight

In August, the average length of the day in Opal is 13h and 48min.
On the first day of the month, sunrise is at 6:16 am and sunset at 8:38 pm. On the last day of August, sunrise is at 6:47 am and sunset at 7:55 pm MDT.

Sunshine

The months with the most sunshine are July and August, with an average of 11.8h of sunshine.

UV index

The average daily maximum UV index in August in Opal, Wyoming, 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: A maximum high daily UV index of 5 during August translates into the following directions:
Guard yourself - Precautionary measures against sun damage are advocated. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
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Frequently asked questions

What is the temperature in August in Opal?

The high-temperature, in August, in Opal, records 77.9°F (25.5°C), while the low-temperature is 54.1°F (12.3°C).

What is the least humid month in Opal?

With an average relative humidity of 35%, August is the least humid month in Opal, Wyoming.

What is the average humidity in August in Opal?

In August, the average relative humidity in Opal, Wyoming, is 35%.

What is the driest month in Opal?

August is the month with the least rainfall in Opal. Rain falls for 8.1 days and accumulates 0.59" (15mm) of precipitation.

How much does it rain in Opal in August?

In Opal, in August, during 8.1 rainfall days, 0.59" (15mm) of precipitation is typically accumulated.

When it does not snow in Opal?

July and August are months without snowfall in Opal, Wyoming.

Does it snow in Opal in August?

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

What is the average length of the day in August in Opal?

The average day length in August in Opal is 13h and 48min.

When is the sunrise / sunset in August in Opal?

On the first day of August, sunrise is at 6:16 am and sunset at 8:38 pm. On the last day of the month, sunrise is at 6:47 am and sunset at 7:55 pm MDT.

What are the months with the most sunshine in Opal?

The months with the most sunshine are July and August, with an average of 11.8h of sunshine.

How long on average sun shines in August in Opal?

The average sunshine duration in August in Opal, Wyoming, is 11.8h.

What is the UV index intensity in August in Opal?

The average daily maximum UV index in August in Opal is 5. A UV Index value 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
Opal, WY

Average temperature in August - Opal, WY
  • Average high temperature in August: 77.9°F

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is December (25.7°F).

  • Average low temperature in August: 54.1°F

The month with the highest average low temperature is July (55°F).
The coldest month (with the lowest average low temperature) is January (9.9°F).

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Average pressure in August
Opal, WY

Average pressure in August - Opal, WY
  • Average pressure in August: 29.95"Hg

The month with the highest atmospheric pressure is January (30.29"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

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Average wind speed in August
Opal, WY

Average wind speed in August - Opal, WY
  • Average wind speed in August: 7.8mph

The windiest month (with the highest average wind speed) is April (9.8mph).
The calmest month (with the lowest average wind speed) is July (7.5mph).

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Average humidity in August
Opal, WY

Average humidity in August - Opal, WY
  • Average humidity in August: 35%

The months with the highest relative humidity are January and February (87%).
The month with the lowest relative humidity is August (35%).

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Average rainfall in August
Opal, WY

Average rainfall in August - Opal, WY
  • Average rainfall in August: 0.59"

The wettest month (with the highest rainfall) is May (2.01").
The driest month (with the least rainfall) is August (0.59").

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Average rainfall days in August
Opal, WY

Average rainfall days in August - Opal, WY
  • Average rainfall days in August: 8.1 days

The month with the highest number of rainy days is May (13.3 days).
The month with the least rainy days is February (5 days).

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Average snowfall in August
Opal, WY

Average snowfall in August - Opal, WY
  • Average snowfall in August: 0"

The month with the highest snowfall is March (6.81").
The months with the least snowfall are July and August (0").

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Average snowfall days in August
Opal, WY

Average snowfall days in August - Opal, WY
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (15.3 days).
The months with the least snowfall days are July and August (0 days).

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Average daylight in August /
Average sunshine in August
Opal, WY

Average daylight in August / Average sunshine in August - Opal, WY
  • Average daylight in August: 13h and 5min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in August: 11h and 5min

The months with the most sunshine are July and August (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 42min).

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Average sunshine days in August
Opal, WY

Average sunshine days in August - Opal, WY
  • Average sunshine days in August: 18.7 days

The month with the most sunshine days is October (19.4 days).
The month with the least sunshine days is April (9.7 days).

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Average UV index in August
Opal, WY

Average UV index in August - Opal, 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, March, April, October, November and December (UV index 2).

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Average cloud cover in August
Opal, WY

Average cloud cover in August - Opal, WY
  • Average cloud cover in August: 12

The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 12).

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Average visibility in August
Opal, WY

Average visibility in August - Opal, WY
  • Average visibility in August: 6mi

The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and February (4mi).

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Opal, Wyoming, USA

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