August weather forecastBanner, WY
August
Weather in August
The last month of the summer, August, is also a moderately hot month in Banner, Wyoming, with temperature in the range of an average high of 77.4°F (25.2°C) and an average low of 56.1°F (13.4°C).Temperature
Banner notes an average high-temperature of a still warm 77.4°F (25.2°C) in August, hardly diverging from July. Banner experiences an average nighttime temperature of 56.1°F (13.4°C) in the month of August.Humidity
The least humid month in Banner is August, with an average relative humidity of 46%.Rainfall
In Banner, in August, it is raining for 17.3 days, with typically 1.81" (46mm) of accumulated precipitation. In Banner, during the entire year, the rain falls for 165.2 days and collects up to 21.22" (539mm) of precipitation.Snowfall
June through August are months without snowfall.Daylight
In Banner, the average length of the day in August is 13h and 59min.On the first day of the month, sunrise is at 5:54 am and sunset at 8:32 pm. On the last day of August, sunrise is at 6:29 am and sunset at 7:45 pm MDT.
Sunshine
In Banner, the average sunshine in August is 11.7h.UV index
In August, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index of 5 during August translates into the following directions:
Undertake precautions - Guarding against sun damage is counselled. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Banner, WY
- Average high temperature in August: 77.4°F
The warmest month (with the highest average high temperature) is July (78.8°F).
The month with the lowest average high temperature is February (29.1°F).
- Average low temperature in August: 56.1°F
The month with the highest average low temperature is July (57°F).
The coldest month (with the lowest average low temperature) is February (14.4°F).
Average pressure in August
Banner, WY
- Average pressure in August: 29.91"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in August
Banner, WY
- Average wind speed in August: 5.8mph
The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).
Average humidity in August
Banner, WY
- Average humidity in August: 46%
The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is August (46%).
Average rainfall in August
Banner, WY
- Average rainfall in August: 1.81"
The wettest month (with the highest rainfall) is May (3.43").
The driest month (with the least rainfall) is December (0.75").
Average rainfall days in August
Banner, WY
- Average rainfall days in August: 17.3 days
The month with the highest number of rainy days is May (22.3 days).
The month with the least rainy days is November (7.5 days).
Average snowfall in August
Banner, WY
- Average snowfall in August: 0"
The month with the highest snowfall is April (8.7").
The months with the least snowfall are June, July and August (0").
Average snowfall days in August
Banner, WY
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (15.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in August /
Average sunshine in August
Banner, 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 42min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 6h and 6min).
Average sunshine days in August
Banner, WY
- Average sunshine days in August: 9.2 days
The month with the most sunshine days is November (15.2 days).
The month with the least sunshine days is May (5.8 days).
Average UV index in August
Banner, 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
Banner, WY
- Average cloud cover in August: 16
The months with the most cloud cover are February and April (Cloud cover 37).
The month with the least cloud cover is July (Cloud cover 15).
Average visibility in August
Banner, 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).





