July weather forecast
Winnetka, CA

Weather in July

July, the same as June, is another warm summer month in Winnetka, California, with an average temperature ranging between max 84.2°F (29°C) and min 63.7°F (17.6°C).

Temperature

In July, the average high-temperature is practically the same as in June - a still moderately hot 84.2°F (29°C). The average low-temperature, in July, is 63.7°F (17.6°C).

Heat index

In July, the average heat index is appraised at a tropical 86°F (30°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. 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 'feels like', 'felt air temperature', 'apparent temperature', or 'real feel', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. Additional factors like wind, metabolic differences, clothing, and activity influence one's weather impression. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. 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

In Winnetka, the average relative humidity in July is 55%.

Rainfall

In Winnetka, in July, it is raining for 2.6 days, with typically 0.16" (4mm) of accumulated precipitation. Throughout the year, in Winnetka, there are 42.7 rainfall days, and 6.46" (164mm) of precipitation is accumulated.

Snowfall

In Winnetka, snow does not fall in January through November.

Daylight

In July, the average length of the day is 14h and 10min.
On the first day of July in Winnetka, sunrise is at 5:46 am and sunset at 8:10 pm. On the last day of the month, sunrise is at 6:04 am and sunset at 7:56 pm PDT.

Sunshine

The months with the most sunshine are June and July, with an average of 12.1h of sunshine.

UV index

June through September, with an average maximum UV index of 6, are months with the highest UV index in Winnetka. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for average individuals.
Note: In July, the average maximum UV index of 6 translate into the following recommendations:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. 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. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the temperature in July in Winnetka?

In Winnetka, California, in July, the average high-temperature is 84.2°F (29°C), and the average low-temperature is 63.7°F (17.6°C). in July, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines relative humidity and air temperature, is appraised at 86°F (30°C).

What is the average humidity in July in Winnetka?

In July, the average relative humidity in Winnetka is 55%.

How much does it rain in Winnetka in July?

In Winnetka, California, in July, it is raining for 2.6 days, with typically 0.16" (4mm) of accumulated precipitation.

When it does not snow in Winnetka?

January through November are months without snowfall in Winnetka, California.

How many hours of daylight does Winnetka have in July?

The average day length in July in Winnetka, California, is 14h and 10min.

What time are sunrise and sunset in July in Winnetka?

On the first day of July, sunrise is at 5:46 am and sunset at 8:10 pm. On the last day of the month, sunrise is at 6:04 am and sunset at 7:56 pm PDT.

What are the months with the most sunshine in Winnetka?

The months with the most sunshine in Winnetka are June and July, with an average of 12.1h of sunshine.

How many hours of sunshine does Winnetka have in July?

The average sunshine duration in July in Winnetka is 12.1h.

What are the months with the highest UV index in Winnetka?

June through September, with an average maximum UV index of 6, are months with the highest UV index.

What is the UV index intensity in July in Winnetka?

In July, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in July
Winnetka, CA

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).

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Average pressure in July
Winnetka, CA

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).

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Average wind speed in July
Winnetka, CA

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).

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Average humidity in July
Winnetka, CA

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%).

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Average rainfall in July
Winnetka, CA

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").

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Average rainfall days in July
Winnetka, CA

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).

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Average snowfall days in July
Winnetka, CA

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).

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Average daylight in July /
Average sunshine in July
Winnetka, CA

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).

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Average sunshine days in July
Winnetka, CA

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).

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Average UV index in July
Winnetka, CA

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).

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Average cloud cover in July
Winnetka, CA

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).

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Average visibility in July
Winnetka, CA

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).

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