July weather forecast and climate
Winnetka, CA

Weather in July

July, the same as June, is another warm summer month in Winnetka, California, with temperature in the range of an average low of 63.7°F (17.6°C) and an average high of 84.2°F (29°C).

Temperature

In Winnetka, the average high-temperature is essentially the same as in June - a still warm 84.2°F (29°C). The average low-temperature, is 63.7°F (17.6°C).

Heat index

In July, the average heat index is evaluated at a tropical 86.5°F (30.3°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
Note that heat index values are valued for light wind and location in the shade. With the 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', 'apparent temperature', 'felt air temperature', or 'real feel', is a measure of how hot it feels when the actual air humidity is factored in. Additional factors like metabolic differences, pregnancy, clothing, and activity influence one's weather impression. Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

The average relative humidity in Winnetka is 55%.

Rainfall

In Winnetka, during July, the rain falls for 2.6 days and regularly aggregates up to 0.16" (4mm) of precipitation. In Winnetka, California, during the entire year, the rain falls for 42.7 days and collects up to 6.46" (164mm) of precipitation.

Snowfall

January through November are months without snowfall.

Daylight

In July, the average length of the day is 14.2h.

Sunshine

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

UV index

Months with the highest UV index are June through September, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from the exposure to the Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 6 in July interpret into the following advice:
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. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
[Resources]

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). The average heat index (a.k.a. 'real feel', 'apparent temperature'), that combines both air temperature and relative humidity, in July is estimated at 86.5°F (30.3°C).

What is the average humidity in July in Winnetka?

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

How many days does it rain in July in Winnetka?

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

When it does not snow in Winnetka?

In Winnetka snow does not fall in January through November.

How many hours of daylight does Winnetka have in July?

In Winnetka, the average length of the day in July is 14.2h.

What are the months with the most sunshine in Winnetka?

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

How many hours of sunshine does Winnetka have in July?

The average sunshine in July in Winnetka, California, is 12.1h.

What is the month with the highest UV index in Winnetka?

Months with the highest UV index in Winnetka, California, are June through September, with an average maximum UV index of 6.

What is the UV index intensity in July in Winnetka?

In Winnetka, the average daily maximum UV index in July is 6. A UV Index reading of 6 to 7 represents a high health risk from the exposure to the Sun's UV radiation.

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).

[Resources]

Average pressure in July
Winnetka, CA

Average pressure in July - Winnetka, CA
  • Average pressure in July: 29.92"

The month with the highest atmospheric pressure is January (30.11").
The month with the lowest atmospheric pressure is June (29.89").

[Resources]

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).

[Resources]

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%).

[Resources]

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").

[Resources]

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).

[Resources]

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).
Months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).

[Resources]

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

Average daylight in July / Average sunshine in July - Winnetka, CA
  • Average daylight in July: 14.2h

The month with the longest days is June (Average daylight: 14.4h).
The month with the shortest days is December (Average daylight: 9.9h).

  • Average sunshine in July: 12.1h

Months with the most sunshine are June and July (Average sunshine: 12.1h).
Months with the least sunshine are January, February and December (Average sunshine: 6.8).

[Resources]

Average sunshine days in July
Winnetka, CA

Average sunshine days in July - Winnetka, CA
  • Average sunshine days in July: 26.4 days

Months with the most sunshine days are August and October (27.3 days).
The month with the least sunshine days is February (22 days).

[Resources]

Average UV index in July
Winnetka, CA

Average UV index in July - Winnetka, CA
  • Average UV index in July: 6

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).

[Resources]

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).

[Resources]

Average visibility in July
Winnetka, CA

Average visibility in July - Winnetka, CA
  • Average visibility in July: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

[Resources]