August weather forecastVernonia, OR
August
Weather in August
August, the last month of the summer in Vernonia, is also a moderately hot month, with temperature in the range of an average high of 77°F (25°C) and an average low of 50.7°F (10.4°C).Temperature
In Vernonia, August is identified by the highest average temperatures, reaching a peak of 77°F (25°C) and a low of 50.7°F (10.4°C).Humidity
In Vernonia, the average relative humidity in August is 74%.Rainfall
July and August are months with the least rain when the rain falls for 6.4 days and typically aggregates up to 0.51" (13mm) of rain.Snowfall
May through October are months without snowfall.Daylight
In Vernonia, the average length of the day in August is 14h and 4min.On the first day of the month, sunrise is at 5:56 am and sunset at 8:41 pm. On the last day of August, sunrise is at 6:33 am and sunset at 7:52 pm PDT.
Sunshine
August has the most sunshine of the year, with an average of 10.2h of sunshine.UV index
The average daily maximum UV index in August is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: A maximum daily UV index of 4 during August morphs into the following directions:
Exercise prevention - Protecting skin and eyes from harm is required. When the Sun is at its strongest around midday, find shade and limit exposure. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Vernonia, OR
- Average high temperature in August: 77°F
The warmest month (with the highest average high temperature) is August (77°F).
The month with the lowest average high temperature is December (42.1°F).
- Average low temperature in August: 50.7°F
The month with the highest average low temperature is August (50.7°F).
The coldest month (with the lowest average low temperature) is December (32.9°F).
Average pressure in August
Vernonia, OR
- Average pressure in August: 30.02"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are August and September (30.02"Hg).
Average wind speed in August
Vernonia, OR
- Average wind speed in August: 4.1mph
The windiest months (with the highest average wind speed) are January, March and November (4.8mph).
The calmest month (with the lowest average wind speed) is September (3.9mph).
Average humidity in August
Vernonia, OR
- Average humidity in August: 74%
The month with the highest relative humidity is November (89%).
The month with the lowest relative humidity is July (73%).
Average rainfall in August
Vernonia, OR
- Average rainfall in August: 0.51"
The wettest month (with the highest rainfall) is January (5.79").
The driest months (with the least rainfall) are July and August (0.51").
Average rainfall days in August
Vernonia, OR
- Average rainfall days in August: 6.4 days
The month with the highest number of rainy days is March (21.7 days).
The month with the least rainy days is July (6 days).
Average snowfall in August
Vernonia, OR
- Average snowfall in August: 0"
The month with the highest snowfall is February (3.94").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in August
Vernonia, OR
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (4.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in August /
Average sunshine in August
Vernonia, OR
- Average daylight in August: 14h and 6min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in August: 10h and 12min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 3h and 18min).
Average sunshine days in August
Vernonia, OR
- Average sunshine days in August: 21.3 days
The month with the most sunshine days is July (22.1 days).
The months with the least sunshine days are February and March (7.6 days).
Average UV index in August
Vernonia, OR
- Average UV index in August: 4
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in August
Vernonia, OR
- Average cloud cover in August: 34
The months with the most cloud cover are February and March (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in August
Vernonia, OR
- Average visibility in August: 5mi
The months with the highest visibility are July and August (5mi).
The months with the lowest visibility are January, February, March, April, May, June, September, October, November and December (4mi).
