August weather forecastGreen River, WY
August
Weather in August
In Green River, Wyoming, while August sees continuity in the summer season, it also hints at the approaching autumn. The weather experiences a slight dip in the average high temperature from July's peak to 79.3°F (26.3°C). Rainfall rises marginally to 0.55in yet fails to disrupt the bright sunny days and extensive daylight hours, synonymous with summer. August weather carries the last remnants of summer heat while preparing for the oncoming mild autumn climate. This change is evident in the subtly decreasing temperatures and the evolving natural landscape of the city.Temperature
Green River experiences a minor change to a still moderately hot 79.3°F (26.3°C) in average high-temperature during August, closely reflecting July. Throughout the month of August, Green River reports a steady low-temperature average of 58.6°F (14.8°C).Humidity
July and August, with an average relative humidity of 31%, are the least humid months.Rainfall
In Green River, in August, it is raining for 7.5 days, with typically 0.55" (14mm) of accumulated precipitation. In Green River, during the entire year, the rain falls for 93.5 days and collects up to 10.31" (262mm) of precipitation.Snowfall
In Green River, snow does not fall in July and August.Daylight
The average length of the day in August is 13h and 47min.On the first day of August, sunrise is at 6:13 am and sunset at 8:34 pm. On the last day of the month, sunrise is at 6:43 am and sunset at 7:52 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 is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index of 5 in August converts into the following recommendations:
Be vigilant - Suggestions to stave off sun damage are provided. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Green River, WY
- Average high temperature in August: 79.3°F
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is December (25.7°F).
- Average low temperature in August: 58.6°F
The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).
Average pressure in August
Green River, WY
- Average pressure in August: 29.97"Hg
The month with the highest atmospheric pressure is January (30.28"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in August
Green River, WY
- Average wind speed in August: 8.7mph
The windiest month (with the highest average wind speed) is April (12.2mph).
The calmest month (with the lowest average wind speed) is August (8.7mph).
Average humidity in August
Green River, WY
- Average humidity in August: 31%
The month with the highest relative humidity is January (84%).
The months with the lowest relative humidity are July and August (31%).
Average rainfall in August
Green River, WY
- Average rainfall in August: 0.55"
The wettest month (with the highest rainfall) is May (1.5").
The driest month (with the least rainfall) is July (0.47").
Average rainfall days in August
Green River, WY
- Average rainfall days in August: 7.5 days
The month with the highest number of rainy days is May (13.8 days).
The month with the least rainy days is December (4.7 days).
Average snowfall in August
Green River, WY
- Average snowfall in August: 0"
The month with the highest snowfall is March (6.14").
The months with the least snowfall are July and August (0").
Average snowfall days in August
Green River, WY
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is December (13.5 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in August /
Average sunshine in August
Green River, WY
- Average daylight in August: 13h and 48min
The month with the longest days is June (Average daylight: 15h and 6min).
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 months with the least sunshine are January and December (Average sunshine: 5h and 54min).
Average sunshine days in August
Green River, WY
- Average sunshine days in August: 18.7 days
The month with the most sunshine days is September (19.8 days).
The month with the least sunshine days is April (11.5 days).
Average UV index in August
Green River, 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
Green River, WY
- Average cloud cover in August: 13
The month with the most cloud cover is February (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility in August
Green River, WY
- Average visibility in August: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
