August weather forecastVernal, UT
August
Weather in August
The sizzling summer continues into August with temperatures not far from July's. High temperatures average 83.3°F (28.5°C) while lows hover around 60.4°F (15.8°C). Although marginally cooler than July, August still upholds the summer heat, making the nights pleasantly warm. August's relatively high temperatures make it pop among the other months. The prolonged daylight resonates with daytime enthusiasts, making it a fine time for treks and hikes.Temperature
Vernal marks the onset of August with an average high-temperature of a still warm 83.3°F (28.5°C), a subtle shift from July's 85.6°F (29.8°C). Marked by a significant drop from the daytime highs, Vernal's average low-temperature in August stands at a moderate 60.4°F (15.8°C).Humidity
In Vernal, the average relative humidity in August is 32%.Rainfall
In Vernal, in August, during 6 rainfall days, 0.39" (10mm) of precipitation is typically accumulated. In Vernal, during the entire year, the rain falls for 83.2 days and collects up to 5.75" (146mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in August is 13h and 44min.On the first day of August, sunrise is at 6:16 am and sunset at 8:32 pm. On the last day of the month, sunrise is at 6:45 am and sunset at 7:51 pm MDT.
Sunshine
The average sunshine in August is 11.9h.UV index
The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for average individuals.Note: A maximum UV index of 6 in August translates into the following recommendations:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Vernal, UT
- Average high temperature in August: 83.3°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (30°F).
- Average low temperature in August: 60.4°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (12.7°F).
Average pressure in August
Vernal, UT
- Average pressure in August: 29.96"Hg
The month with the highest atmospheric pressure is January (30.29"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in August
Vernal, UT
- Average wind speed in August: 6mph
The windiest month (with the highest average wind speed) is June (7.5mph).
The calmest month (with the lowest average wind speed) is January (3.4mph).
Average humidity in August
Vernal, UT
- Average humidity in August: 32%
The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is June (30%).
Average rainfall in August
Vernal, UT
- Average rainfall in August: 0.39"
The wettest month (with the highest rainfall) is April (0.71").
The driest month (with the least rainfall) is November (0.31").
Average rainfall days in August
Vernal, UT
- Average rainfall days in August: 6 days
The month with the highest number of rainy days is April (10.8 days).
The month with the least rainy days is January (5.4 days).
Average snowfall in August
Vernal, UT
- Average snowfall in August: 0"
The month with the highest snowfall is December (4.29").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Vernal, UT
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (10.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Vernal, UT
- Average daylight in August: 13h and 42min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in August: 11h and 54min
The month with the most sunshine is June (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 6h and 30min).
Average sunshine days in August
Vernal, UT
- Average sunshine days in August: 20 days
The month with the most sunshine days is October (22.4 days).
The month with the least sunshine days is April (15.3 days).
Average UV index in August
Vernal, UT
- Average UV index in August: 6
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in August
Vernal, UT
- Average cloud cover in August: 11
The month with the most cloud cover is February (Cloud cover 30).
The months with the least cloud cover are August and September (Cloud cover 11).
Average visibility in August
Vernal, UT
- Average visibility in August: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
