August weather forecastOpal, WY
August
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.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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).
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).
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).
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%).
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").
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).
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").
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).
Average daylight in August /
Average sunshine in August
Opal, WY
- Average daylight in August: 13h and 48min
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 48min
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).
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).
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).
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).
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).
