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
Waterloo registers the highest average temperatures during the month of August, with peaks of 81.1°F (27.3°C) and lows of 51.8°F (11°C).Heat index
During August, the heat index is calculated to be 84.2°F (29°C). Extended exposure and activity might lead to tiredness, potentially resulting in heat cramps.For clarity, heat index numbers account for light winds and areas under shade. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', is a metric representing the sensation of warmth when air temperature and moisture come together. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
Humidity
The least humid month is August, with an average relative humidity of 66%.Rainfall
In Waterloo, in August, it is raining for 3.8 days, with typically 0.31" (8mm) of accumulated precipitation. Throughout the year, there are 163.3 rainfall days, and 29.92" (760mm) of precipitation is accumulated.Snowfall
In Waterloo, snow does not fall in April through October.Daylight
The average length of the day in August is 13h and 59min.On the first day of August in Waterloo, Oregon, sunrise is at 5:59 am and sunset at 8:36 pm. On the last day of the month, sunrise is at 6:33 am and sunset at 7:48 pm PDT.
Sunshine
The month with the most sunshine in Waterloo is August, with an average of 11.2h of sunshine.UV index
In August, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for average individuals.Note: In August, the maximum UV index of 5 suggests this advice:
Put precautions into practice - Ensuring skin and eye safety is a necessity. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Frequently asked questions
What part of the year is the hottest in Waterloo?
What is the average August temperature in Waterloo?
What is the least humid month in Waterloo?
What is the average humidity in August in Waterloo?
How much does it rain in Waterloo in August?
When it does not snow in Waterloo?
What is the average length of the day in August in Waterloo?
What time are sunrise and sunset in August in Waterloo?
What month has the most sunshine in Waterloo?
How many hours of sunshine does Waterloo have in August?
What is the UV index reading in August in Waterloo?
Average temperature in August
Waterloo, OR
- Average high temperature in August: 81.1°F
The warmest month (with the highest average high temperature) is August (81.1°F).
The month with the lowest average high temperature is December (45.3°F).
- Average low temperature in August: 51.8°F
The month with the highest average low temperature is August (51.8°F).
The coldest month (with the lowest average low temperature) is December (34.2°F).
Average pressure in August
Waterloo, OR
- Average pressure in August: 30.01"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).
Average wind speed in August
Waterloo, OR
- Average wind speed in August: 3.9mph
The windiest months (with the highest average wind speed) are January and March (5.1mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).
Average humidity in August
Waterloo, OR
- Average humidity in August: 66%
The months with the highest relative humidity are January, February, March and December (86%).
The month with the lowest relative humidity is August (66%).
Average rainfall in August
Waterloo, OR
- Average rainfall in August: 0.31"
The wettest month (with the highest rainfall) is December (4.41").
The driest month (with the least rainfall) is July (0.24").
Average rainfall days in August
Waterloo, OR
- Average rainfall days in August: 3.8 days
The month with the highest number of rainy days is March (20.1 days).
The months with the least rainy days are July and August (3.8 days).
Average snowfall in August
Waterloo, OR
- Average snowfall in August: 0"
The month with the highest snowfall is February (2.13").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in August
Waterloo, OR
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (2.5 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
Waterloo, OR
- Average daylight in August: 14h and 0min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in August: 11h and 1min
The month with the most sunshine is August (Average sunshine: 11h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).
Average sunshine days in August
Waterloo, OR
- Average sunshine days in August: 25.3 days
The month with the most sunshine days is July (25.6 days).
The month with the least sunshine days is March (9.1 days).
Average UV index in August
Waterloo, 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
Waterloo, OR
- Average cloud cover in August: 20
The month with the most cloud cover is February (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 20).
Average visibility in August
Waterloo, OR
- Average visibility in August: 6mi
The months with the highest visibility are July, August and September (6mi).
The month with the lowest visibility is February (4mi).
Waterloo, Oregon, USA
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