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
Sunnyvale's August weather, marked by an average high temperature of 95.5°F (35.3°C) and an average low temperature of 75.7°F (24.3°C), is the warmest in the year.Heat index
The average heat index in August is estimated at a life-threatening hot 113°F (45°C). Eyes open: Heat cramps and heat exhaustion are expected. Prolonged exertion could lead to heatstroke.In terms of the heat index, values are set with light wind and shade conditions in mind. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'real feel', blends air temperature and moisture content to represent the felt temperature to humans. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
The natural cooling mechanism in humans involves perspiration, where the evaporation of sweat balances out excessive warmth. In the presence of elevated relative humidity, the evaporation rate decreases. This reduction leads to increased body heat retention compared to conditions of dry air. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.
Humidity
August is the least humid month, with an average relative humidity of 58%.Rainfall
In Sunnyvale, during August, the rain falls for 13.2 days and regularly aggregates up to 2.68" (68mm) of precipitation. In Sunnyvale, during the entire year, the rain falls for 149.6 days and collects up to 33.35" (847mm) of precipitation.Snowfall
In Sunnyvale, snow does not fall in March through December.Daylight
The average length of the day in August is 13h and 19min.On the first day of the month, sunrise is at 6:40 am and sunset at 8:24 pm. On the last day of August, in Sunnyvale, Texas, sunrise is at 7:00 am and sunset at 7:51 pm CDT.
Sunshine
With an average of 11.1h of sunshine, August has the most sunshine of the year.UV index
The months with the highest UV index in Sunnyvale are June through August, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for the average person.Note: The daily maximum UV index of 7 in August interprets into the following advice:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Frequently asked questions
What are the warmest months in Sunnyvale?
How hot is it in Sunnyvale in August?
What is the least humid month in Sunnyvale?
What is the average humidity in August in Sunnyvale?
How many days does it rain in August in Sunnyvale?
When it does not snow in Sunnyvale?
How many hours of daylight does Sunnyvale have in August?
What time are sunrise and sunset in August in Sunnyvale?
What month has the most sunshine in Sunnyvale?
How long on average sun shines in August in Sunnyvale?
What are the months with the highest UV index in Sunnyvale?
How high is the UV index in August in Sunnyvale?
Average temperature in August
Sunnyvale, TX
- Average high temperature in August: 95.5°F
The warmest month (with the highest average high temperature) is August (95.5°F).
The month with the lowest average high temperature is January (54.3°F).
- Average low temperature in August: 75.7°F
The months with the highest average low temperature are July and August (75.7°F).
The coldest month (with the lowest average low temperature) is January (38.8°F).
Average pressure in August
Sunnyvale, TX
- Average pressure in August: 29.93"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in August
Sunnyvale, TX
- Average wind speed in August: 6.8mph
The windiest month (with the highest average wind speed) is March (9.8mph).
The calmest month (with the lowest average wind speed) is September (6.6mph).
Average humidity in August
Sunnyvale, TX
- Average humidity in August: 58%
The month with the highest relative humidity is May (75%).
The month with the lowest relative humidity is August (58%).
Average rainfall in August
Sunnyvale, TX
- Average rainfall in August: 2.68"
The wettest month (with the highest rainfall) is October (4.29").
The driest month (with the least rainfall) is February (1.85").
Average rainfall days in August
Sunnyvale, TX
- Average rainfall days in August: 13.2 days
The month with the highest number of rainy days is May (15.4 days).
The month with the least rainy days is January (7.6 days).
Average snowfall in August
Sunnyvale, TX
- Average snowfall in August: 0"
The month with the highest snowfall is February (0.67").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in August
Sunnyvale, TX
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (1.2 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in August /
Average sunshine in August
Sunnyvale, TX
- Average daylight in August: 13h and 2min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in August: 11h and 1min
The month with the most sunshine is August (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in August
Sunnyvale, TX
- Average sunshine days in August: 15.3 days
The month with the most sunshine days is January (21.8 days).
The month with the least sunshine days is September (13 days).
Average UV index in August
Sunnyvale, TX
- Average UV index in August: 7
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in August
Sunnyvale, TX
- Average cloud cover in August: 20
The month with the most cloud cover is February (Cloud cover 42).
The month with the least cloud cover is August (Cloud cover 20).
Average visibility in August
Sunnyvale, TX
- Average visibility in August: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Sunnyvale, Texas, USA
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