Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
August, characterized by an average high temperature of 85.1°F (29.5°C) and a low temperature of 49.5°F (9.7°C), is generally the warmest month.Heat index
The heat index in August is evaluated at a hot 89.6°F (32°C). Exposure and extended activity could potentially cause a state of fatigue and lead to heat cramps.One should be cognizant that the heat index values are tailored for shaded spots and mild winds. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a value derived by merging air temperature with the humidity to convey how the climate feels. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
Humidity
The least humid month is August, with an average relative humidity of 59%.Rainfall
In Jacksonville, during August, the rain falls for 3.7 days and regularly aggregates up to 0.28" (7mm) of precipitation. In Jacksonville, during the entire year, the rain falls for 130.2 days and collects up to 19.17" (487mm) of precipitation.Snowfall
In Jacksonville, snow does not fall in May through October.Daylight
In Jacksonville, the average length of the day in August is 13h and 50min.On the first day of the month, sunrise is at 6:05 am and sunset at 8:30 pm. On the last day of August, sunrise is at 6:36 am and sunset at 7:46 pm PDT.
Sunshine
July and August, with an average of 11.9h of sunshine, are months with the most sunshine.UV index
In August, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: The maximum UV index of 5 during August translates into these guidelines:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. Avoiding the Sun during its peak radiation time around midday is a healthy practice. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the hottest time of year?
Is it hot during August?
What is the least humid month?
What is the average humidity in August?
How much does it rain in August?
When it does not snow?
How many hours of daylight does Jacksonville have in August?
When are sunrise and sunset in August?
What is the month with the most sunshine?
How many hours of sunshine does Jacksonville have in August?
How high is the UV index in August in Jacksonville?
Average temperature in August
Jacksonville, OR
- Average high temperature in August: 85.1°F
The warmest month (with the highest average high temperature) is August (85.1°F).
The month with the lowest average high temperature is December (44.4°F).
- Average low temperature in August: 49.5°F
The month with the highest average low temperature is August (49.5°F).
The coldest month (with the lowest average low temperature) is December (29.3°F).
Average pressure in August
Jacksonville, OR
- Average pressure in August: 29.98"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is August (29.98"Hg).
Average wind speed in August
Jacksonville, OR
- Average wind speed in August: 3.4mph
The windiest months (with the highest average wind speed) are January and March (4.2mph).
The calmest months (with the lowest average wind speed) are August, September and October (3.4mph).
Average humidity in August
Jacksonville, OR
- Average humidity in August: 59%
The months with the highest relative humidity are January and December (83%).
The month with the lowest relative humidity is August (59%).
Average rainfall in August
Jacksonville, OR
- Average rainfall in August: 0.28"
The wettest month (with the highest rainfall) is December (3.11").
The driest month (with the least rainfall) is July (0.2").
Average rainfall days in August
Jacksonville, OR
- Average rainfall days in August: 3.7 days
The month with the highest number of rainy days is March (17.8 days).
The month with the least rainy days is August (3.7 days).
Average snowfall in August
Jacksonville, OR
- Average snowfall in August: 0"
The month with the highest snowfall is February (2.64").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in August
Jacksonville, OR
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (4.8 days).
The months with the least snowfall days are June, July, August and October (0 days).
Average daylight in August /
Average sunshine in August
Jacksonville, OR
- Average daylight in August: 13h and 5min
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 6min).
- Average sunshine in August: 11h and 5min
The months with the most sunshine are July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days in August
Jacksonville, OR
- Average sunshine days in August: 25.3 days
The month with the most sunshine days is August (25.3 days).
The month with the least sunshine days is March (11.2 days).
Average UV index in August
Jacksonville, OR
- 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, November and December (UV index 2).
Average cloud cover in August
Jacksonville, OR
- Average cloud cover in August: 11
The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 11).
Average visibility in August
Jacksonville, OR
- Average visibility in August: 6mi
The months with the highest visibility are July, August, September and October (6mi).
The months with the lowest visibility are January, February, March, April, May, June, November and December (5mi).
Jacksonville, Oregon, USA
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