Contents
- Weather in July
- Frequently asked questions
- Average temperature in July
- Average pressure in July
- Average wind speed in July
- Average humidity in July
- Average rainfall in July
- Average rainfall days in July
- Average snowfall days in July
- Average daylight in July
- Average sunshine in July
- Average sunshine days in July
- Average UV index in July
- Average cloud cover in July
- Average visibility in July
Weather in July
Temperature
On the advent of July, Winnetka's average high-temperature exhibits a minor adjustment to a still moderately hot 84.2°F (29°C) from June's 79°F (26.1°C). Winnetka registers a consistent average low-temperature of 63.7°F (17.6°C) during July.Heat index
In July, the heat index is estimated at a hot 86°F (30°C). Persistently participating in activities during exposure may lead to fatigue and induce heat cramps.Given the heat index, its values are aligned with shaded sites and gentle winds. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is a composite of temperature and humidity figures to convey how warm it feels. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for 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
In July, the average relative humidity in Winnetka is 55%.Rainfall
In Winnetka, California, during July, the rain falls for 2.6 days and regularly aggregates up to 0.16" (4mm) of precipitation. Throughout the year, there are 42.7 rainfall days, and 6.46" (164mm) of precipitation is accumulated.Snowfall
In Winnetka, California, snow does not fall in January through November.Daylight
The average length of the day in July in Winnetka is 14h and 10min.On the first day of the month, sunrise is at 5:46 am and sunset at 8:10 pm. On the last day of July, in Winnetka, sunrise is at 6:05 am and sunset at 7:56 pm PDT.
Sunshine
June and July, with an average of 12.1h of sunshine, are months with the most sunshine in Winnetka.UV index
June through September, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: In July, a daily maximum UV index of 6 leads to the following instructions:
Guard oneself from overexposure. Defence against sun injury is vital. 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. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Frequently asked questions
How hot is July in Winnetka?
What is the average humidity in July in Winnetka?
How much does it rain in Winnetka in July?
When it does not snow in Winnetka?
What is the average length of the day in July in Winnetka?
When is the sunrise / sunset in July in Winnetka?
What are the months with the most sunshine in Winnetka?
How many hours of sunshine does Winnetka have in July?
What are the months with the highest UV index in Winnetka?
How high is the UV index in July in Winnetka?
Average temperature in July
Winnetka, CA
- Average high temperature in July: 84.2°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 July: 63.7°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 July
Winnetka, CA
- Average pressure in July: 29.92"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 July
Winnetka, CA
- Average wind speed in July: 4.9mph
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 July
Winnetka, CA
- Average humidity in July: 55%
The month with the highest relative humidity is June (59%).
The month with the lowest relative humidity is November (47%).
Average rainfall in July
Winnetka, CA
- Average rainfall in July: 0.16"
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 July
Winnetka, CA
- Average rainfall days in July: 2.6 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 July
Winnetka, CA
- Average snowfall days in July: 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 July /
Average sunshine in July
Winnetka, CA
- Average daylight in July: 14h and 1min
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 July: 12h and 1min
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 July
Winnetka, CA
- Average sunshine days in July: 26.4 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 July
Winnetka, CA
- Average UV index in July: 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 July
Winnetka, CA
- Average cloud cover in July: 7
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 July
Winnetka, CA
- Average visibility in July: 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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