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 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
Winnetka's August weather, with an average high temperature of 85.6°F and an average low temperature of 64.8°F, tends to be the warmest of the year.Heat index
For August, the heat index is computed to be a hot 87.8°F. Continuous activity in exposure could lead to a feeling of fatigue and heat cramps.Heat index specifics point out values are for conditions of shade and a slight breeze. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is found by incorporating humidity levels into the air temperature measurement. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.
Humidity
In August, the average relative humidity in Winnetka is 52%.Rainfall
In Winnetka, in August, it is raining for 1.5 days, with typically 0.08" of accumulated precipitation. In Winnetka, during the entire year, the rain falls for 42.7 days and collects up to 6.46" of precipitation.Snowfall
In Winnetka, snow does not fall in January through November.Daylight
The average length of the day in August in Winnetka is 13h and 23min.On the first day of the month, sunrise is at 6:05 am and sunset at 7:55 pm. On the last day of August, in Winnetka, sunrise is at 6:27 am and sunset at 7:22 pm PDT.
Sunshine
In Winnetka, California, the average sunshine in August is 12h.UV index
June through September, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the average person.Note: In August, an average UV index of 6 transforms into the following instructions:
Shun overexposure. Protection from sun ravages is indispensable. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
FAQ
What is the hottest time of year in Winnetka?
How hot is it in Winnetka in August?
What is the average humidity in August in Winnetka?
How much does it rain in Winnetka in August?
When it does not snow in Winnetka?
What is the average length of the day in August in Winnetka?
When is the sunrise / sunset in August in Winnetka?
How many hours of sunshine does Winnetka have in August?
What are the months with the highest UV index in Winnetka?
What is the UV index intensity in August in Winnetka?
Average temperature in August
Winnetka, CA
- Average high temperature in August: 85.6°F
The warmest month (with the highest average high temperature) is August (85.6°F).
The month with the lowest average high temperature is December (61.9°F).
- Average low temperature in August: 64.8°F
The month with the highest average low temperature is August (64.8°F).
The coldest month (with the lowest average low temperature) is December (46.9°F).
Average pressure in August
Winnetka, CA
- Average pressure in August: 29.9"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in August
Winnetka, CA
- Average wind speed in August: 4.6mph
The windiest months (with the highest average wind speed) are January and December (6.1mph).
The calmest month (with the lowest average wind speed) is September (4.5mph).
Average humidity in August
Winnetka, CA
- Average humidity in August: 52%
The month with the highest relative humidity is June (59%).
The month with the lowest relative humidity is November (47%).
Average rainfall in August
Winnetka, CA
- Average rainfall in August: 0.08"
The wettest month (with the highest rainfall) is February (1.22").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in August
Winnetka, CA
- Average rainfall days in August: 1.5 days
The month with the highest number of rainy days is March (6.5 days).
The month with the least rainy days is June (1.4 days).
Average snowfall days in August
Winnetka, CA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is December (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in August /
Average sunshine in August
Winnetka, CA
- Average daylight in August: 13h and 2min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in August: 12h and 0min
The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The months with the least sunshine are January, February and December (Average sunshine: 6h and 48min).
Average sunshine days in August
Winnetka, CA
- Average sunshine days in August: 27.3 days
The months with the most sunshine days are August and October (27.3 days).
The month with the least sunshine days is February (22 days).
Average UV index in August
Winnetka, CA
- Average UV index in August: 6
The months with the highest UV index are June, July, August and September (UV index 6).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in August
Winnetka, CA
- Average cloud cover in August: 4
The month with the most cloud cover is March (Cloud cover 22).
The month with the least cloud cover is August (Cloud cover 4).
Average visibility in August
Winnetka, CA
- 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).
Winnetka, California, USA
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