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
Petersburg experiences a subtle adjustment in high-temperatures to a still moderately hot 81.3°F (27.4°C) with the onset of August, maintaining near parity with July's 81.7°F (27.6°C). Petersburg logs a substantial downturn to a refreshing 55.8°F (13.2°C) during August nights, a considerable shift from daytime highs.Heat index
In August, the heat index is estimated at 82.4°F (28°C). Uninterrupted exposure and activity might result in fatigue, potentially causing heat cramps.It is important to note that the heat index values are for shaded areas and light wind scenarios. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', gauges the sensation of temperature factoring in the air's moisture content. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
Humidity
The months with the lowest humidity are July and August, with an average relative humidity of 51%.Rainfall
In Petersburg, in August, during 3.2 rainfall days, 0.28" (7mm) of precipitation is typically accumulated. Throughout the year, there are 133.5 rainfall days, and 16.93" (430mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall.Daylight
In Petersburg, Oregon, the average length of the day in August is 14h and 4min.On the first day of the month, sunrise is at 5:48 am and sunset at 8:32 pm. On the last day of August, sunrise is at 6:25 am and sunset at 7:43 pm PDT.
Sunshine
In Petersburg, the average sunshine in August is 11.9h.UV index
In Petersburg, the average daily maximum UV index in August is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: The daily high UV index of 5 in August translates into this advice:
Ensure safety - Imperative it is to shield skin and eyes from damage. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average August temperature?
What are the least humid months?
What is the average humidity in August?
How much does it rain in August?
When it does not snow?
What is the average length of the day in August?
What time are sunrise and sunset in August?
How long on average sun shines in August?
What is the UV index reading in August in Petersburg?
Average temperature in August
Petersburg, OR
- Average high temperature in August: 81.3°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is December (37°F).
- Average low temperature in August: 55.8°F
The month with the highest average low temperature is August (55.8°F).
The coldest month (with the lowest average low temperature) is December (27.1°F).
Average pressure in August
Petersburg, OR
- Average pressure in August: 29.96"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is August (29.96"Hg).
Average wind speed in August
Petersburg, OR
- Average wind speed in August: 6mph
The windiest month (with the highest average wind speed) is June (7.1mph).
The calmest months (with the lowest average wind speed) are January and December (4.8mph).
Average humidity in August
Petersburg, OR
- Average humidity in August: 51%
The months with the highest relative humidity are January and December (85%).
The months with the lowest relative humidity are July and August (51%).
Average rainfall in August
Petersburg, OR
- Average rainfall in August: 0.28"
The wettest month (with the highest rainfall) is January (2.99").
The driest month (with the least rainfall) is July (0.16").
Average rainfall days in August
Petersburg, OR
- Average rainfall days in August: 3.2 days
The month with the highest number of rainy days is March (16.3 days).
The month with the least rainy days is August (3.2 days).
Average snowfall in August
Petersburg, OR
- Average snowfall in August: 0"
The month with the highest snowfall is February (4.29").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in August
Petersburg, OR
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is December (4.4 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in August /
Average sunshine in August
Petersburg, OR
- Average daylight in August: 14h and 1min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in August: 11h and 5min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).
Average sunshine days in August
Petersburg, OR
- Average sunshine days in August: 26.3 days
The month with the most sunshine days is July (26.8 days).
The month with the least sunshine days is March (10.6 days).
Average UV index in August
Petersburg, 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
Petersburg, OR
- Average cloud cover in August: 10
The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are July and August (Cloud cover 10).
Average visibility in August
Petersburg, OR
- 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).
Petersburg, Oregon, USA
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