August weather forecast
Lafayette, OR

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Weather in August

August, the last month of the summer in Lafayette, is also a moderately hot month, with temperature in the range of an average low of 54.3°F (12.4°C) and an average high of 81.1°F (27.3°C).

Temperature

In Lafayette, the month of August registers the highest temperatures, averaging 81.1°F (27.3°C) at the peak and 54.3°F (12.4°C) at the lowest.

Heat index

August's average heat index is computed to be 84.2°F (29°C). Prolonged exposure and physical activity might induce exhaustion, potentially causing heat cramps.
Take note of the fact that heat index values are based on shaded circumstances with light airflows. 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 'felt air temperature' or 'feels like', integrates the air's temperature and its humidity to showcase the felt temperature by people. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for 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 67%.

Rainfall

July and August are months with the least rain when the rain falls for 4.6 days and typically aggregates up to 0.35" (9mm) of rain.

Snowfall

April through October are months without snowfall.

Daylight

In Lafayette, the average length of the day in August is 14h and 2min.
On the first day of August, sunrise is at 5:58 am and sunset at 8:39 pm. On the last day of the month, sunrise is at 6:34 am and sunset at 7:50 pm PDT.

Sunshine

With an average of 10.8h of sunshine, August has the most sunshine of the year.

UV index

The average daily maximum UV index in August is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum UV index of 5 during August translates into these guidelines:
Take precautions. Light skin individuals may get burned in less than 30 minutes. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.

Frequently asked questions

What time of the year is the hottest?

August, noted for its average high-temperature of 81.1°F (27.3°C) and an average low-temperature of 54.3°F (12.4°C), is considered the warmest month in Lafayette.

What are the temperatures in August?

The high-temperature, in August, in Lafayette, is 81.1°F (27.3°C), while the low-temperature averages to 54.3°F (12.4°C). The average heat index (a.k.a. 'real feel', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, in August is computed to be 84.2°F (29°C).

What is the least humid month?

With an average relative humidity of 67%, August is the least humid month.

What is the average humidity in August?

In August, the average relative humidity is 67%.

What is the driest month?

July and August are months with the least rain when the rain falls for 4.6 days and typically aggregates up to 0.35" (9mm) of rain.

How much does it rain in August?

In Lafayette, during August, the rain falls for 4.6 days and regularly aggregates up to 0.35" (9mm) of precipitation.

When it does not snow?

In Lafayette, snow does not fall in April through October.

What is the average length of the day in August?

In August, the average day length is 14h and 2min.

When are sunrise and sunset in August?

On the first day of August, sunrise is at 5:58 am and sunset at 8:39 pm. On the last day of the month, sunrise is at 6:34 am and sunset at 7:50 pm PDT.

What month has the most sunshine?

August has the most sunshine of the year, with an average of 10.8h of sunshine.

How long on average sun shines in August?

In Lafayette, the average sunshine duration in August is 10.8h.

How high is the UV index in August?

The average daily maximum UV index in August is 5. A UV Index value of 3 to 5 symbolizes a medium health risk from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Lafayette, OR

Average temperature in August - Lafayette, 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 (44.1°F).

  • Average low temperature in August: 54.3°F

The month with the highest average low temperature is August (54.3°F).
The coldest month (with the lowest average low temperature) is December (34.3°F).

Average pressure in August
Lafayette, OR

Average pressure in August - Lafayette, OR
  • Average pressure in August: 30.01"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).

Average wind speed in August
Lafayette, OR

Average wind speed in August - Lafayette, OR
  • Average wind speed in August: 4mph

The windiest month (with the highest average wind speed) is March (5.2mph).
The calmest month (with the lowest average wind speed) is August (4mph).

Average humidity in August
Lafayette, OR

Average humidity in August - Lafayette, OR
  • Average humidity in August: 67%

The months with the highest relative humidity are February and December (87%).
The month with the lowest relative humidity is August (67%).

Average rainfall in August
Lafayette, OR

Average rainfall in August - Lafayette, OR
  • Average rainfall in August: 0.35"

The wettest month (with the highest rainfall) is December (4.49").
The driest months (with the least rainfall) are July and August (0.35").

Average rainfall days in August
Lafayette, OR

Average rainfall days in August - Lafayette, OR
  • Average rainfall days in August: 4.6 days

The month with the highest number of rainy days is March (19.8 days).
The month with the least rainy days is August (4.6 days).

Average snowfall in August
Lafayette, OR

Average snowfall in August - Lafayette, OR
  • Average snowfall in August: 0"

The month with the highest snowfall is February (1.38").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in August
Lafayette, OR

Average snowfall days in August - Lafayette, OR
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (2 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
Lafayette, OR

Average daylight in August / Average sunshine in August - Lafayette, OR
  • Average daylight in August: 14h and 0min

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: 10h and 5min

The month with the most sunshine is August (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 3h and 54min).

Average sunshine days in August
Lafayette, OR

Average sunshine days in August - Lafayette, OR
  • Average sunshine days in August: 24.1 days

The month with the most sunshine days is July (24.2 days).
The month with the least sunshine days is February (8.4 days).

Average UV index in August
Lafayette, OR

Average UV index in August - Lafayette, 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
Lafayette, OR

Average cloud cover in August - Lafayette, OR
  • Average cloud cover in August: 23

The month with the most cloud cover is February (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 23).

Average visibility in August
Lafayette, OR

Average visibility in August - Lafayette, OR
  • Average visibility in August: 6mi

The months with the highest visibility are July, August and September (6mi).
The months with the lowest visibility are January, February and December (4mi).

Lafayette, Oregon, USA

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